DNV Ship rules Pt.5 Ch.4 - Chemical Carriers · CHEMICAL CARRIERS JULY 1999 SECTIONS ... 9 Gas...

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PART 5 CHAPTER 4

CHEMICAL CARRIERS JULY 1999

SECTIONS

RULES FOR CLASSIFICATION OF

SHIPS

NEWBUILDINGS

SPECIAL SERVICE AND TYPE ADDITIONAL CLASS

PAGE

1 General Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Ship Arrangement and Damage Stability .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 7 4 Arrangement in Hold Spaces .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 10 5 Scantlings and Testing of Cargo Tanks .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 11 6 Piping Systems in Cargo Area .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. 13 7 Cargo Heating and Cooling Arrangements . .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 17 8 Marking of Tanks, Pipes and Valves ..................................................................... 18 9 Gas freeing and Venting of Cargo Tanks ................................................................ 19

10 Mechanical Ventilation in the Cargo Area ............................................................... 21 11 Fire Protection and Extinction .............................................................................. 23 12 Electrical Installations .. , ..................................................................................... 26 13 Instrumentation and Automation ........................................................................... 28 14 Tests after Installation .. .. . . . .. . .. .. .. . . . .. . .. .. .. . . .. .. .. . . . .. . .. . . . .. . .. .. .. .. . .. . .. . . . .. .. .. . . .. . .. . . . .. . .. 29 15 Additional Requirements for Certain Cargoes .......................................................... 30 16 Inert Gas Plants ................................................................................................ 37 17 Personnel Protection .......................................................................................... 38

APPENDICES

A List of Cargoes - Tanker for Chemicals .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 40

DET NORSKE VERITAS Veritasveien 1, N-1323 Hm>il<, Norway Tel.: +47 67 57 99 00 Fax: +47 67 57 99 11

CHANGES IN THE RULES

General The present edition of the Rules includes additions and amendments decided by the Board as of June 1999, and supersedes the July 1998 edition of the same chapter.

The Rule changes come into force on 1 January 2000.

This chapter is valid until superseded by a revised chapter. Supplements will not be issued except for an updated list of minor amendments and corrections presented in Pt.O Ch.1 Sec.3. The introduction booklet is nonnally revised in January and July each year.

Revised chapters will be forwarded to all subscribers to the Rules. Buyers of reprints are advised to check the updated list of Rule chapters printed in Pt.O Ch.1 Sec.1 to ensure that the chapter is current.

Comments to the Rules may be sent by e-mail to [email protected].

Main changes

• Sec.16 Inert Gas Plant

- To improve the basis for approval of nit!Ogen systems, the IACS Unified Requirements for Inert Gas Systems on Chemical Tankers, (F20) has been included as follows: Sec.16.

- Item B!Ol 1) has been amended and items B200 to B300 have been added.

Corrections and Clarifications

In addition to the above stated rule amendments, some detected errors have been corrected, and some clarifications have been made in the existing rule wording.

For subscription orders or information about subscription terms, please use [email protected]. Comprehensive information about DNV and the Society's services is found at the Web site http://www.dnv.com

© Det"Norske Veritas AS Computer Typesetting by Division Technology and Products, Det Norske Veritas AS Printed in Norway by Det Norske Veritas AS July 1999

7.99.5500

~u~~YP~i;~~f o~u~!;r~r~°::d 0Jir~~Trogs~ :r~ca~1!g~~0H:V~~~r~~~eb~~~~=~:!3o~Y s~~(i ~~g~~~~~~c:n °~~~~~~i~~u0~1 ~6\eNn°~f ~;svf;!t~!'e ~~~r~:J ~o~~~ ~:;~~~! i~a~~~=~o~~m:6~id~~0rh~~ the maximum compensation shall never exceed USO 2 million. ~f ~~~ ~~~~~~oy.e·r~~;.Norske Verltas" shall mean the Foundation Det Norske Veritas as well as all its subsidiaries, directors, officers, employees, agents end any other acting on behalf

2

CONTENTS

SEC. 1 GENERAL REQUIREMENTS ..•••.....•••..••....• 1

A. Classification •.. •• . . •• •. . . .• •• . . •• . . . . .• •. . . •• •. . . •• •• . . . .• .• . • .• •• 1 A 100 Application . . . . .. . . . . . . .. . . .. . . . . . . . . .. .. . . .. . . . . .. . . . . . .. . . 1 A 200 Class notations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A 300 Special features notations . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

B. Defmitions ..•...••.. .....•..••........ ..••......••..•......••••..•• 2 B 100 Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

C. Documentation •••..••.. ..••.•.•••.. ...•.. ..•••...•••••.....•..•••• 3 C 100 General .. .. .... .. .... ...... .. .... .. .... .. .... ... ...... .. .... 3 C 200 Plans and particulars . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

D. Tank Types ..••••...••••..•... ....•. ..••......••..••..•.. .•••.. .... 4 D 100 Integral tanks, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 D 200 Integral tanks, type al .... .. .... .. .... .. ... . .. .... .. .. .. . 4 D 300 Integral tanks, type a2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 D 400 Independent tanks, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 D 500 Independent tanks, type a3 . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 4 D 600 Independent tanks, type a4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

E. Filling Limits for Cargo Tanks . .• •• . . • . . .. . . .. •• . • . . .. .. . . •• • 5 E 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

F. Signboards . . . ••• •... .• . . • . •. . . .. .• . . . . .. . . . . •• •• . . .. ... . . •• •• . . .. .. 5 F I 00 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

G. Cargo Information •...... ..••.. .....•..••••....••..•.••.....••.• 5 G 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .. . . . . 5

H. Procedures and Arrangements Manual •••.. ........••••... 5 H 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SEC. 2 MATERIALS ...••••....••..•.•.....••.•..•......••••..•. 6

A. General • . •. . . . • . • . . •• . . .• •• •• .• .. . . .• •• •• . . •• ... . . .• •• . . . . .. .. . . •• •• 6 A 100 Selection and testing . . . . . .. . . . . .. . . . . . . ... . . . . . . . . . . . . . . . . 6

B. Hull ..•••.....•••........••..........•••............•••.....••..•.••.. 6 B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

C. Cargo Tanks . ..••........•.••.. ...... ..•••.........•••••.. ...•.. .. 6 C JOO General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

D. Cargo Piping .••.. ..•... ..••..•..... ..•..•.. ...... ..•••••........•. 6 D 100 General .. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . 6 D 200 Documentation of material quality and testing . . . . . . . 6

SEC. 3 SHIP ARRANGEMENT AND DAMAGE STA-BILITY ••.......••..••..........•••........•..•••......••.. 7

A. Damage Stability . . •• . . • . •. . . .• •• . . .. .. . . . . .. •• . . • . •. . . . . . .• •• . . .. 7 A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 A 200 Requirements for watertight integrity . . . . . . . . . . . . . . . . . 7

B. Cargo Tank Location .•••........ ..••••.. ...... ..•••. .........•• 7 B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 7

C. Location and Separation of Spaces •.•.... ..••.•........ .•.•. 7 C I 00 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

D. Arrangement of Entrances and Other Openings .. ....... 8 D 100 Accommodation and gas safe spaces . . . . . .. . . . . . . . . . . . 8 D 200 Gas dangerous spaces and cargo tanks . . . . . . . . . . . . . . . . 8 D 300 Access to and within cargo tanks, void spaces and

other spaces in the cargo area . . . . . . . . . . . . . . . . . . . . . . . . . . 8

E. Guard Rails and Bulwarks .. . . . . ••• •• . . . . .. . . . . •• •. . . .. .• . . .• • 9 E 100 Arrangement . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels ... 9 F 100 General .. .... .. .. . .. .... .. ... ... .. .... .. .. ..... .. .... .. .... 9

G. Diesel Engines Driving Emergency Fire Pumps, et.c. •... 9 G I 00 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

H. Chain Locker and Windlass .... ..•••••.. .....•..•••.......... 9 H 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

I. Anodes, Washing Machines and Other Fittings in Tanks and Cofferdams ••....•.••••......••.. :. •• •. . . . . • . •• . • . . •.. .. . . .. • 9 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

J. Slop Tanks ...•••••.......•..•••••.....•.• ,........................ 9 J I 00 Arrangement ................... :". . . . . . . . . . . . . . . . . . . . . . . . . . . 9

K. Stowage of Cargo Samples •• . • . . •• .. .. . . • . •• •• . . . . .• •• . . •. . . . . 9 K 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 K 200 Arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

SEC. 4 ARRANGEMENT IN HOLD SPACES •.•....... 10

A. General •..•.••....•.••••.......•..•.••••.•..••.•.....••••.....•.... 10 A 100 Distance between tanks and hull . .. .. .... .. .. .... .. . .. 10

B. Gas Pressure Relief Devices .••••.•............•••• .-.•.....••• 10 B 100 Pressure/vacuum relief valves . ... .. .. .... .. ... . .. ..... 10

C. Sealing around Tanks ... ..•••••••.. ........ ..••.•..•••.....••. 10 C 100 General ..... .. .... .. .. ...... .. ...... .. .. .... .. .... ... .. .. .. 10

D. Earth Connections .•....•..••••••.....•••.. ..••••......... .••••. 10 D 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .. . . 10

SEC. 5 SCANTLIN GS AND TESTING OF CARGO TANKS ..••..•.••••......••.•..••••.....•••....•.••......• 11

A. Scantlin gs of Cargo Tanks . . . ..• •• •. . . .• •• . . . . .• •• . • . . •• . . . . . 11 A I 00 Integral tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 A 200 Independent tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

B. Requirements for Testing of Welds and Non-Destructive Testing .. .• . . . . •• •• . . . . .. •• •• . . . . •. . . . . .. •• . . . .. .. . . 11

B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 B 200 Welding procedure tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 B 300 Production weld tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

C. Testing of Tanks .. ...••••.. ........ ..•..•.... .....•..•.........• 12 C 100 Integral tanks .... .. .. ... ... .. .. .... .. .. .... .. ...... ..... .. 12 C 200 Independent tsnks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

SEC. 6 PIPING SYSTEMS IN CARGO AREA .••....•.. 13

A. Pumping and Piping Systems for Bilge, Ballast and Fuel Oil ••..........•....••.......•••..............•••••........•••• 13

A 100 General ... .. .. .... .. .. .... .. .. .. . . .. .. .. .... ... .. . ... .... .. 13 A 200 Cargo pump rooms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 A 300 Cofferdams and pipe tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 A 400 Spaces for independent tanks ........... , . .. .. . . . . . .. . . 13 A 500 Ballast tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 A 600 Fuel oil tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

B. Cargo Piping System ...... .. ...•.... ... .•••. ........ ...•.. ..••• 13 B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 B 200 Cargo pumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 B 300 Arrangement and general design . . . . . . . . . .. . . . . . . . . . . . 14 B 400 Pressure indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 B 500 Welding procedure tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 B 600 Testing .. .. .... .. .. . ... .. .. .... .. .. .. .... .. ... .... .. .... .. .. 15

C. Stripping of Cargo Tank and Cargo Lines . •• . . . .• . . . . . . . 15 C 100 General . . ... .. .. .... .. .. .. . ... .. .. ... . .. .. .... ... .... .. .. . . 15

D. Discharge of Contaminated Water ..........••....••....... 15 D 100 Location of discharge outlet .. .... .. .. . ..... .... .. ..... 15 D 200 Sizing of the discharge ·outlet . . .... .. ... ... .. .... .. ... 15 D 300 Cargo Record Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

E. Stern loading and unloading arrangements ••.•....... ..• 15 E 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 E 200 Piping arrangement . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . l5 E 300 Accommodation entrances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 E 400 Electrical equipment ~ Fire fighting . . . . . . . . . . . . . . . . . 16

SEC. 7 CARGO HEATING AND COOLING AR-RANGEMENTS .••...........•..•.••................... 17

A. Cargo Heating and Cooling Arrangements .. ..••.. ....... 17 A 100 General . .. ... ... .. .. .. .... .. .. .... .. .. .. . . .. ... .... .. .... .. 17 A 200 Heating of cargoes with temperatures above 80°C 17

SEC. 8 MARKING OF TANKS, PIPES AND VALVES 18

A. General .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ...... .... .. .... .. .. 18 A 100 Marking plates ..... .. .... .. .... .. ...... .... .. ...... ...... 18 A 200 Pipelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 A 300 Marking of independent tanks . . . . . . . . . . . . . . . . . . . . . . . . . 18

SEC. 9 GAS FREEING AND VENTING OF CARGO TANKS ................................. " ................ 19

A. Gas Freeing of Cargo Tanks .. ...... ...... ...... ...... ...... . 19 A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. Tank Venting Systems ......................................... 19 B 100 General . . .. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 B 200 Tank venting system, type c1 . .. .. .. .. .... .. .. .. .. .. .. 19 B 300 Tank venting system, type c2 . . . . . . . . . . . . . . . . . . . . . . . . . 19 B 400 Tank venting system, type c3 . . . . . . . . . . . . . . . . . . . . . . . . . 20

SEC. 10 MECHANICAL VENTILATION IN THE CARGO AREA ................................... ...... 21

A. System Requirements ...... ...... ...... ...... ............. ..... 21 A 100 General .................................................... 21 A 200 Fans serving gas dangerous spaces . . . . . . . . . . . . . . . . . . . 21

B. Ventilation, type v2 ............................................ 22 B 100 Ventilation of cargo handling spaces ................. 22 B 200 Ventilation of spaces not normally entered .......... 22

C. Ventilation, type v3 ............................................ 22 C 100 Ventilation of cargo handling spaces ................. 22 C 200 Ventilation of spaces not normally entered . . . . . . . . . . 22

SEC. 11 FIRE PROTECTION AND EXTINCTION ..... 23

A. Documentation .. .. ...... .... ...... ...... .. . .. .. .. ... . ...... ...... 23 A 100 Plans and particulars . ..... .. .. .. .. .... .. .. .. .. ... . .. .... 23

B. Fire Protection ............................................ ....... 23 B 100 Construction . . . . . .. . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 23 B 200 Accommodation, service and control spaces . . . . . . . . 23 B 300 Fireman's outfit ......................................... 24

C. Fire Extinction ................................................... 24 C 100 Fire extinguishing in cargo area ....................... 24 C 200 Deck fire extinguishing system in cargo area 24 C 300 Fire extinguishing in cargo pump rooms . . . . . . . . . . . . 24

SEC. 12 ELECTRICAL INSTALLATIONS ............... 26

A. General .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .... .. .... .. .... ...... 26 A 100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . .. . . . . . 26

B. Electrical Installations in Cargo Area and Adjacent to this Area .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .... ...... .. 26

B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 B 200 Cargo tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 B 300 Cofferdams and other under deck spaces adjacent

to cargo tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 B 400 Cargo pump rooms . . . . . . . . .. . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 26 B 500 Enclosed or semi-enclosed spaces above cargo

tanks ...................................................... 27 B 600 Hazardous areas on the open deck . . . . . . . . . . . . . . . . . . . . 27 B 700 Other spaces in the cargo area and in enclosed or

semi-enclosed spaces with direct access to the cargo area ......................................................... 27

B 800 Tweendeck spaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

C. Signboards ............ .......... ...... .. ................... .... ... 27 C 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

SEC. 13 INSTRUMENTATION AND AUTOMATION 28

A. General Requirements .. .... ...... .. .... .. .... .. .... .. .... .. . .. 28 A 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

B. Alarm, Indicating and Recording Systems ............... 28 B 100 Cargo tank level gauging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 B 200 Overflow control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

B 300 B 400 B 500

Vapour detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Cargo temperature measurement . . . . . . . . . . . . . . . . . . . . . . 28 Hold leakage alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

SEC. 14 TESTS AFTER INSTALLATION ................. 29

A. General .................................. ·................... ....... 29 A 100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

SEC. 15 ADDITIONAL REQUIREMENTS FOR CER-TAIN CARGOES ...................................... 30

A. General Requirements ...... ........ ........ ...... ............. 30 A 100 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 A 200 Materials .................................................. 30 A 300 Segregation of cargo from bunker tanks . . . . . . . . . . . . . 30 A 400 Separate piping systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 A 500 Cargo contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 A 600 Cargoes with low ignition temperature and wide

flammability range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . 31 A 700 Inert gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A 800 Moisture control (Drying) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A 900 Cargo pumps in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A 1000 Cargoes not to be exposed to excessive heat . . . . . . . . 31 A 1100 Cargoes requiring heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 A 1200 Cargo pump temperature sensors . . . . . . . . . . . . . . . . . . . . . 31

B. Additional Requirements for Certain Groups of Cargoes ............................................................ 31

B 100 Acids ...................................................... 31 B 200 Cargoes which have a vapour pressure. greater than

1,015 bar at 37,8°C ..................................... 31

C. Additional Requirements for Certain Chemicals ..... ... 31 C 100 Ammonium nitrate solution, 93 % or less ........ : . . 31 · C 200 Carbon disulphide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 C 300 Diethyl ether . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 C 400 Hydrogen peroxide solutions of 60% but not over

M% ....................................................... n C 500 Hydrogen peroxide solutions over 8% but not over

W% ....................................................... D C 600 Phosphorus, yellow or white . . . . . . . . . . . . . . . . . . . . . . . . . . 33 C 700 Propylene oxide and mixtures of ethylene oxide/

propylene oxide with ethylene oxide contt:nl of nut more than 30% by weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

C 800 Sulphuric acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 C 900 Sulphur liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 C 1000 Alkyl (C7 - C9) nitrates . .. .. . . .. .. .. .. .. .. 36

SEC. 16 INERT GAS PLANTS ................................ 37

A. General .... .. ...... .. ...... .. .... .. ...... .. .... .. .. . .... .. .... .. ... 37 A 100 Application ... .. ..... .. .... .. .. .... .. .. . . .. .. .... ... 37 A 200 Documentation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 37

B. Materials, Arrangement and Design .... ............ ....... 37 B 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 B 200 Inert gas systems based on other means than com-

bustion of hydrocarbons . . . .. . . . . . . . . . . . . . . . . . . . 37 B 300 Nitrogen inert gas systems fitted for other purposes 37

SEC. 17 PERSONNEL PROTECTION ...................... 38

A. General Requirements .. .......... ...... ........ ...... ......... 38 A 100 Protective equipment .. .... ... .. ... . .. .. .... .. ..... 38

B. Safety Equipment ...... .. ...... .. ........ ........ ...... ......... 38 B 100 Safety equipment ......................................... 38

C. Medical First-aid Equipment ........ ........ ...... ...... ..... 39 C 100 General ....... :................. . ................... 39

D. Decontamination Showers and Eye Washes .............. 39 D 100 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

APP. A LIST OF CARGOES - TANKER FOR CHEMICALS ........ ........ ........ .............. ..... 40

A. General ...... .. . .. .. .. .. .. .. .. . . .. .. .. .. .. .. .... .. ...... . .. .. . .... . 40 A 100 List of cargoes .. .. ... .. .. ... . .. .. .. .. .. .. .... .. ..... .. .. 40

Rules for Ships , July 1999 Pt.5 Ch.4 Sec.1 - Page 1

SECTION 1 GENERAL REQUIREMENTS

Contents

A. Classification A 100 Application A 200 Class notations A 300 Special features notations

B. Definitions B 100 Terms

C. Documentation C 100 General C 200 Plans and particulars

D. Tank Types D 100 Integral tanks, general D 200 Integral tanks, type a1 D 300 Integral tanks, type a2 D 400 Independent tanks, general D 500 Independent tanks, type a3 D 600 Independent tanks, type a4

E. Filling Limits for Cargo Tanks E 100 General

F. Signboards F 100 References

G. Cargo Information G 100 General

H. Procedures and Arrangements Manual H 100 General

A. Classification

A 100 Application

101 The Rules in this chapter apply to ships intended for carriage of liquid chemicals in bulk. The requirements are to be regarded as supplementary to those given for assignment of main class.

102 Cargoes covered by the classification in accordance with this chapter are listed in Appendix A, in the following also referred to as the List of Cargoes. Non-hazardous cargoes except oil, are covered by the general requirements for main class unless otherwise stated.

103 The requirements of this chapter are considered to meet the requirements of the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulk.

104 Chemical tankers also intended for carriage of oil are to comply with the Rules for Oil Carriers in Ch.3.

105 Chemical tankers of 20 000 tonnes deadweight and above are to be fitted with an emergency towing arrangement in accordance with Pt.3 Ch. I Sec.8 E600.

A 200 Class notations

201 Ships built according to Sec. I to Sec.14 of this chapter may be assigned the class notation:

Tanker for Chemicals ESP or Tanker for Chemicals.

Ships built for carriage of cargoes not requiring full compliance with Sec. I to Sec.14 may be assigned the class notation:

Tanker for C ESP or Tanker for C

where C indicates the type of cargo for which the ship is classified.

The mandatory ship type and service notation

Tanker for Chemicals ESP or Tanker for C ESP

is to be assigned to self propelled ships having integral tanks intended for carriage of liquid chemicals in bulk in accordance with IM O's International Code for the Construction and Equipment of Ships carrying Dangerous Chemicals in Bulk (IBC Code), or Code for the Construction and Equipment of Ships carrying Dangerous Chemicals in Bulk (BCH Code), as applicable.

202 The requirements for ships with the class notation

Tanker for C ESP or Tanker for C

will be considered in each case depending on the nature of the cargo to be carried.

A 300 Special features notations

301 In the "Register of Vessels classed with DNV", a ship with the class notation

Tanker for Chemicals ESP or Tanker for Chemicals

may be given a series of letters and numbers describing technical features of the ship as described in 302 to 310 (s~~ also Appendix A).

302 Ship type The damage stability· standard in accordance with IMO's International Chemical Code is identified by one of the following notations:

- Ship type 1 - Ship type 2 - Ship type 3

See Sec.3.

303 Tank type (a) The tank types are identified as follows:

- a 1 : Integral tank, type a 1 - a2: Integral tank, type a2 - a3: Independent tank, type a3 - a4: Independent tank, type a4

See D.

304 Cargo tank material (SS) The notation ss indicates that the ship has one or more cargo tanks made of stainless steel, solid or clad.

305 Liquid level gauging devices for cargo tanks (b) The liquid level gauging devices are identified as follows:

- b 1 : open device - b2: restricted device :_ b3: closed device - b4: indirect device

See Sec.13.

306 Tank vent system (c) The tank vent systems are identified as follows:

DET NORSKE VERITAS

Rules for Ships , July 1999 Page 2 - Pt.5 Ch.4 Sec.1

- c 1 : open type vent system - c2: tank vent system, ontlet 6 m above deck - c3: tank vent system, outlet B/3, minimum 6 m above

deck, alternatively 3 m above deck and high velocity valves.

See Sec.9.

307 Ventilation system (v) Ventilation systems outside the cargo tanks are identified as follows:

- v2: Ventilation system providing 30 air changes per hour in cargo handling spaces

- v3: Ventilation system providing 45 air changes per hour in cargo handling spaces.

See Sec.IO.

308 Overflow control (f) The overflow control systems for cargo tanks are identified as follows:

- f 1 : high level alarm - f2: high-high level alarm.

See Sec.13.

309 Cargo stripping efficiency (str) The efficiency of the cargo stripping arrangements of a cargo tank and associated cargo piping is identified as follows:

- str 0 .3: residue quantity not in excess of 0, 3 m3

- str 0. 1 : residue quantity not in excess of 0, I m3.

See Sec.6.

310 Cofferdam (k) The meaning of the letter k is:

- k: bunker tanks are separated from cargo tanks by cofferdams.

See Sec.3.

311 Ship type and tank groups may be indicated in the "Register of Vessels classed with DNV". This will for a ship with cargo tanks of different technical standard be limited to the groups with the lowest and highest technical standard, respectively.

Example: A ship has lowest and highest technical standard in tank groups as follows: Ship type 3, a1, b2, c2, v3, f1, str 0.3 and Ship type 2, a2, b3, c3, v3, f2 str 0. 1. In the Register of ships the following will be given: Ship type 2, a1 .2, b2.3, c2.3, v3, f 1 .2, str 0.3, str 0.1. Where more than one number is given in connection with a letter, all first and second numbers are to be combined, respectively.

B. Defmitions

B 100 Terms

101 Accommodation spaces are those used for public spaces, corridors, lavatories, cabins, offices, hospital, cinemas, games and hobbies rooms, pantries containing no cooking appliances and similar spaces. Public spaces are those portions of the accommodation which are used as halls, dining rooms, lounges and similar permanently enclosed spaces.

102 An air lock is an enclosed space for entrance between an outdoor gas-dangerous zone on open deck and a gas-safe space arranged to prevent ingress of gas to the gas-safe space.

103 Boiling point is the temperature at which a liquid exhibits a vapour pressure equal to the aQ:nospheric barometric pressure.

104 Cargo area is that part of the vessel bounded by the shell and deck plating which contains .. the cargo tanks, hold spaces, cofferdams, and void spaces adjacent to cargo tanks and cargo pump- and compressor rooms, and includes deck areas over the full beam and length of the ship above the foregoing.

105 Cargo control room is a space used in the control of cargo handling operations.

106 Cargo service spaces are spaces within the cargo area or spaces with openings leading into the cargo area, for workshops, lockers and store rooms of more than 2 m2 in area.

107 Cargo tank is the liquid tight shell designed to be the primary container of the cargo.

108 Cofferdam is the isolating space between two adjacent steel bulkheads or decks. The space may be a void space or ballast space.

109 Design vapour pressure Pp is the maximum gauge pressure at the top of the tank which has been used in the design of the tank.

110 Gas dangerous space is:

- a space within the cargo area which is not equipped with approved arrangements to ensure that its atmosphere is at all times maintained in a safe condition.

- an enclosed space outside the cargo area which contains cargo piping.

111 The following spaces are gas dangerous spaces:

- cargo tanks - hold spaces - spaces adjacent to integral tanks for cargo - cargo pump rooms and cargo compressor rooms - spaces containing piping, vessels and equipment used in

connection with the cargo, including rooms for contaminated cargo hoses or other equipment used for loading, discharging or transferring cargo

- enclosed or semi-enclosed spaces having a direct opening into any gas dangerous space or zone.

112 Gas dangerous zones are:

- Zones on the open deck, or semi-enclosed spaces on the deck, within a distance of:

- 3 m from cargo tank openings, cargo pipe flanges, cargo valves or openings to gas-dangerous spaces containing gas sources, e.g. cargo pipe flanges, cargo valves and cargo pumps

- 4,5 m from ventilation outlets from cargo pump rooms - 5 m from cargo breathing valves - 10 m measured horizontally from gas outlets from

cargo tanks during loading - the open deck 3 m forward and aft of the cargo tank,

but including deck above cofferdams and cargo pump room, up to a height of 2,4 m above the deck.

Guidance note: Gas outlets in this context is defined as any cargo opening used as gas outlet in conjunction with loading, breathing and gas freeing operations. For ships with length 90 m or less, somewhat shorter distances may be accepted after consideration in each separate case.

---e-n-d---o-f---G-u-i-d-a-n-c-e--n-o-t-e--

DET NORSKE VERITAS

113 Gas safe space is a space not being a gas dangerous space.

114 Gas sefe zone is a zone not being a gas dangerous zone.

115 Hold space is the space in which an independent cargo tank is situated.

116 Independent means that a piping or venting system, for example, is in no way connected to another system and that there are no provisions available for the potential connection to other systems.

117 Liquid cargo is cargo with a vapour pressure below 2,75 bar absolute at 37,8°C.

118 For the purpose of propylene oxide reference temperature means the temperature corresponding to the vapour pressure of the cargo at the set pressure of the cargo tank pressure relief valve.

119 Separate means that a cargo piping system or cargo vent system, for example, is not connected to another cargo piping or cargo vent system. This separation may be achieved by the use of design or operational methods. Operational methods should not be used within a cargo tank and should consist of one of the following types:

- removing spool pieces or valves and blanking the pipe ends;

- arrangement of two spectacle flanges in series with provisions fur detecting leakage into the pipe between the two spectacle flanges.

120 Service spaces are spaces used for galleys, pantries containing cooking appliances, lockers and store rooms, workshops other than thuise forming part of the machinery spaces and similar spaces and trunks to such spaces.

121 The following decks are designated tank deck:

- a deck or part of a deck which forms the top of a cargo tank

- the part of a deck upon which are located cargo tanks, cargo hatches, valves, pumps or other equipment intended for loading, discharging or transfer of the cargo

- that part of a deck within the cargo area which is located lower than the top of a cargo tank

- deck or part of deck within the cargo area, which is located lower than 2,4 m above a deck as described above.

122 Void space is an enclosed space in the cargo area external to a cargo containment system, not being a hold space, ballast space, fuel oil tank, cargo pump or compressor room, or any space in normal use by personnel.

C. Documentation

C 100 General

101 In 200 are specified the plans and particulars which normally are to be submitted. The drawings are to show clearly that the requirements are fulfilled.

102 Other plans, specifications or information may be required depending on the arrangement and the equipment used in each separate case.

103 For general requirements related to documentation of instrumentation and automation, including computer based control and monitoring, see Pt.4 Ch.5 Sec. I.

C 200 Plans and particulars


201 A general arrangement is to be submitted for approval giving location of: ·

- cargo hatches, tank cleaning hatches and any other openings to the cargo tanks ··

- doors, hatches and any other openings to pump rooms and other gas-dangerous spaces

- ventilating pipes and openings for cargo tanks, pump rooms and other gas-dangerous spaces

- doors, air locks, hatches, ventilating pipes and openings, hinged scuttles which can be opened, and other openings to gas safe spaces adjacent to the cargo area including spaces in and below the forecastle

- cargo pipes and gas return pipes over the deck with shore connections including stem pipes for cargo discharge or gas-freeing of cargo tanks.

202 Plans with the following particulars for the tanks are to be submitted for approval:

- drawings of cargo tanks including information on nondestructive testing of welds and strength and tightness testing of tanks

- drawings of support and staying of independent cargo tanks

- a complete stress analysis is to be submitted for independent tanks type a4.

203 Plans of the following pumping and piping arrangements with accessories are to be submitted for approval:

- diagrams of the cargo piping system including details such as expansion elements and flange connections

- bilge piping systems in pump rooms, cofferdams, pipe tunnels and hold spaces

- arrangement for drainage of cargo pumps and piping in the pump room

- drawing of cargo pump - arrangements for cargo tank . stripping and drainage/

stripping of cargo lines - diagram of tank washing - arrangement and location of undeiwater discharge

outlet(s) - emergency showers and eye wash with water supply and

arrangements to prevent freezing.

204 Plans showing the following equipment and systems are to be submitted for approval:

- arrangement and capacity of air ducts, fans and their motors in the cargo area, drawing and material specification of rotating parts and casing of the fans

- drawings of portable ventilators and drawings showing where and how these are to be fitted

- arrangement for gas-freeing of cargo tanks and cargo lines. Arrangement of cargo tank venting systems

- drawings of gaslight bulkhead stuffing boxes - arrangement of cargo heating systems - arrangement of cargo cooling systems - arrangement of possible thermal insulation and specifica-

tion of insulation materials - drawings showing details of design, attachment and lo

cation of anodes and other fittings in tanks and cofferdams.

- Procedures and Arrangements Manual for the discharge of noxious liquid substances.

205 Plans of electrical installations g1vmg the following particulars are to be submitted for approval:

- area classification drawings

DET NORSKE VERITAS


- drawings showing location of all electrical equipment in gas dangerous area

- single line diagram for intrinsically safe circuits - list of explosion protected equipment with reference to

drawings together with certificates.

206 For documentation regarding:

- fire protection, .see Sec.11, - inert gas plants, see Sec .16.

207 Damage stability

The following documentation is to be submitted for approval:

- preliminary damage stability calculations

- final damage stability calculations Not required in case of approved limit curves, or if approved lightweight data are not less favourable than estimated lightweight data.

The following documentation is to be submitted for information:

- internal watertight integrity plan.

Detailed description of stability documentation is given in Classification Note No. 20.1 'Stability Documentation -Ships N ewbuildings' .

208 For the instrumentation systems listed below, documentation is to be submitted according to Table C !. The upper row of Table Cl refers to the documentation types defined in Pt.4 Ch.5 Sec.1 C200.

Table Cl Requirements for documentation of instrumentation systems 020 030 040 050 060 070 080 090 100

For class notations Tanker for Chemicals and Tanker for C:

CAT x x x x CTL x x x CTO x x x CVA x x x GDE x x x x x IEG x x x x x x Instrumentation systems:

CAT Cargo and vapour temperature control and mOnitoring system CTL Cargo tank level measurement system CTO Cargo tank overflow protection system CVA Cargo valves and pumps control and monitoring_ system CVP Cargo and vapour pressure control and monitoring system GDE Flammable gas detection system (permanent system only) IEG Inert gas control and monitoring system

T Required also for type approved systems

D. Tank Types

D 100 Integral tanks, general

101 Integral tanks form a part of the ship's hull and are influenced in the same manner and by the same loads which stress the adjacent hull structure.

102 The design vapour pressure pois normally not to exceed 0,25 bar. If, however, the hull scantlings are increased accordingly, Po may be increased to a higher value but less thao 0,7 bar.

D 200 Integral tanks, type a 1

201 Integral tanks type a1 are built in such a way that the cargo is separated from the sea by a single skin.

D 300 Integral tanks, type a2

301 Integral tanks type a2 are built in such a way that the cargo is separated from the sea by a double skin.

302 Minimum clearance is to be 7 60 mm between the tank and the ship's shell.

303 Minimum distance between the ship's outer skin and the tank bottom is equivalent to the Rule height for the girder in dry cargo ships (see Pt.3 Ch.1 Sec.6), but is nor-

110 115 120 130 140 150 160 170 180 190 200

x x x x x x x x x x x x x x x x x x

Documentation types:

030 Functional description 040 System block diagrams (T) 050 System diagrams (P&!Ds, D&!Ds, etc.) (T) 070 Power supply arrangement (T) 080 Arrangement and layout (T) 100 Instrument and equipment list (T) 110 Data sheets with environmental specifications 120 Documentation related to software 140 Test program for application software at manufacturer

(T) 150 Test program for quay/sea trial (T)

mally not to be less than B/15. Drainage sumps will be considered in each case.

D 400 Independent tanks, general

401 Independent tanks do not form a part of the ship's hull. An independent tank is built and installed in such a way that the influence on the tank by the hull's deformation and stresses is minimised. An independent tank does not contribute to the hull strength. An independent tank is normally to have longitudinally rigid fixture to the ship in only one transverse plane. Distance between tanks and hull: See Sec.4 AlOO.

D 500 Independent tanks, type a3

501 Independent tanks type a3 are self-supporting and constructed primarily of. plane surfaces where the internal loads are carried mainly in bending of plates and stiffeners. The design vapour pressure Po is not to exceed 0,7 bar.

D 600 Independent tanks, type a4

601 Independent tanks type a4 tanks are self-supporting pressure vessels with a design vapour pressure higher than 0, 7 bar and where the internal pressure is carried mainly as tensile membrane stresses in the tank skin (cylinders, spheres, etc.).

DET NORSKE VERITAS

E. Filling Limits for Cargo Tanks

E 100 General

101 Tanks for liquid cargo are to be so loaded as to avoid the tank becoming liquid full during the voyage taking into consideration the highest temperatnre which the cargo may reach.

F. Signboards

F 100 References

101 Signboards are required by the Rules in:

- Sec.3 DIOS regarding plates bolted to boundaries facing the cargo area and which can be opened for removal of machinery. These are to be fitted with signboard giving instructions that the plates are to be kept closed unless ship is gas-free.

- Sec. 8 regarding marking plates for independent tanks. - Sec.IO A109 regarding pumps and compressors which

are not to be started before the ventilation system in the electric motor room has been in operation for 15 minutes.

- Sec.12 ClOl regarding opening of a lighting fitting. Before opening, its supply circuit is to be disconnected.

- Sec.12 C102 regarding ventilation to be in operation before lighting is tnmed on.

- Sec.12 C103 regarding portable electrical equipment supplied by flexible cables. This equipment is not to be used in areas where there is gas danger.

- Sec.12 C!04 regarding welding apparatns. These are not to be used unless the working space and adjacent spaces are gas-free.


G. Cargo fufonnation

G 100 General 101 A copy of International Code for Construction and Equipment of Ships Carrying Dangeruus Chemicals in Bulk, provisions of this Code, is to be on bOard every ship covered by this Code.

102 Information is to be on board, and available to all concerned, giving the necessary data for the safe carriage of the cargo. Such informab.on should include a cargo stowage plan to be kept in an accessible place, indicating all cargo on board, including each dangerous chemical earned:

I) a full description of the physical and chemical properties, including reactivity necessary for the safe containment of the cargo,

2) action to be taken in the event of spills or leaks,

3) countermeasures against accidental personal contact, 4) fire-fighting procedures and fire-fighting media,

5) procedures for cargo transfer, tank cleaning, gas-freeing and ballasting,

6) for those cargoes required to be stabilised or inhibited, the cargo should be refused if the certificate required by these paragraphs, is not supplied.

H. Procedures and Arrangements Manual

H 100 General

101 Each ship is to be provided with a Procedures and Arrangements Manual developed for the ship in accordance with the provisions of the Standards for Procedures and Arrangements and approved by the Society.

102 Each ship should be fitted with equipment and arrangements identified in its Procedures and Arrangements Manual.

DEr NORSKE VERITAS


SECTION 2 MATERIALS

Contents

A. General A 100 Selection and testing

B. Hull B 100 General

C. Cargo Tanks C 100 General

D. Cargo Piping D 100 General D 200 Documentation of material quality and testing

A. General

A 100 Selection and testing

101 Detailed requirement for materials are given in Pt.2.

102 For materials other than mild steel, the Society will stipulate requirements as to quality and properties in each case.

103 Where stainless steel in cargo tanks/cargo piping and heating coils is required for the carriage of particular cargoes, the content of molybdenum in the material is not to be less than 2,5 % if type NV 316 L or NV 316 LN is specified.

104 Clad steel will be accepted if the requirements of Pt. 2 Ch.2 Sec.3 and Pt.2 Ch.3 Sec.4 are fulfilled. Acceptance of other linings necessary to protect the structural material will be specially considered.

105 Requirements for welding procedure tests and production weld tests are given in Sec.5 and Sec.6.

106 For certain cargoes as specified in Sec.15 or in the List of Cargoes, special requirements for materials apply.

Table Dl Documentation of material quality and testing

Piping Type Material system

Cargo pipes and heating coils Pressure

Open ended

Flanges and bolts

Steel, nodular Pressure Bodies of valves and fittings, cast-iron Pressure pump housings, source grade 1 and 2 Open eitded materials of steel expansion bellows, other pressure Pressure containing components not Copper Pressure considered as pressure vessels alloys

Open ended

B. Hull

B 100 General 101 Hull materials may generally be selected in accordance with ordinary practice as given in Pt.3 Ch.I Sec.2.

C. Cargo Tanks

C 100 General

101 Materials for integral tanks and independent tanks type a3 may generally be selected in accorrumce with ordinary practice as given in Pt.3 Ch. I Sec.2 for hull materials. Materials for independent tanks type a4 (pressure tanks) shall be pressure vessel steel in accordance with Pt.2 Ch.2 Sec.2.

D. Cargo Piping

D 100 General 101 Steel is the normal material of construction for cargo pipes. Other materials may be accepted for non-flammable cl:iemicals. Grey cast-iron is not accepted as material of construction in cargo piping on ships with class notation Tanker for Chemicals. 102 Bodies of valves and fittings, and pump housings are to be of cast steel, nodular cast rron Grade NVl or NV2 or other approved material (see Pt.2 Ch.2).

103 Cargo steel pipes are to be tested according to relevant parts of Pt.2 Ch.2 S"ec.4.

104 Tank vent piping for tanks made of or protected by corrosion-resistant material is to be made of or protected by similar material.

D 200 Docmnentation of material quality and testing

201 The materials used in cargo piping systems are to be furnished with one of the following types of documentation according to Table D 1.

Det Norske Veritas' Certificate, Works' Certificate, and Test Report are defined in Pt.I Ch. I Sec.3.

Nominal Type of documentation diameter NV Works Test

mm certificate certificate report

x

x

x

>100 x

$100 x

x

>50 x

$50 x x

DET NORSKE VERITAS

4


SECTION 3 SIDP ARRANGEMENT AND DAMAGE STABILITY

A. Damage Stability A JOO General

Contents

A 200 Requirements for watertight integrity

B. Cargo Tank Location B JOO General

C. Location and Separation of Spaces C I 00 General

D. Arrangement of Entrances and Other Openings D 100 Accommodation and gas safe spaces D 200 Gas dangerous spaces and cargo tanks D 300 Access to and within cargo tanks, void spaces and other

spaces in the cargo area

E, Guard Rails and Bulwarks E 100 Arrangement

F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels F I 00 General

G. Diesel Engines Driving Emergency Fire Pumps, etc. G I 00 General

H. Chain Locker and Windlass H I 00 General

I. Anodes, Washing Machines and Other Fittings in Tanks and Cofferdams JOO General

J. Slop Tanks J 100 Arrangement

K. Stowage of Cargo Samples K 100 General K 200 Arrangement

A. Damage Stability

A 100 General

101 The ship is to meet the damage stability requirements of chapter 2. 8 of the International Code for the Construction and Equipment of Ships Carrying Dangerous Chemicals in Bulle either for

- Ship type 1 , - Ship type 2 or - Ship type 3.

102 The ship is to be supplied with a loading and stability information booklet. This booklet is to contain details of typical service and ballast conditions, provisions for evaluating other conditions of loading and a summary of the ship's survival capabilities. In addition, the booklet is to contain sufficient information to enable the master to load and operate the ship in a safe and seaworthy manner.

103 Maximum allowable VCG curve(s), for the purpose of checking damage stability compliance, are to be included in the stability manual, unless one of the following alternatives are preferred:

a) The loading manual includes, in approved form, all the conditions intended to be used.

b) The loading computer, intended for conditions at sea, includes approved software functions for damage stability.

Reference is made to Pt.6 Ch.9 Sec. I and Sec.2.

A 200 Requirements for watertight integrity

201 As far as practicable, tunnels, ducts or pipes which may cause progressive flooding in case of damage, are to be avoided in the damage penetration zone. If this is not possible, arrangements are to be made to prev:ent progressive flooding to volumes assumed intact. Alternatively, these volumes are to be assumed flooded in the stability calculations.

202 The scantlings of tunnels, ducts, pipes, doors, staircases, bulkheads and decks, forming watertight boundaries, are to be adequate to withstand pressure heights corresponding to the deepest equilibrium waterline in damaged condition.

B. Cargo Tank Location

B 100 General

101 Tanks intended for carriage of cargoes for which Ship type 1 is required are to be located at a minimum distance from the ship's side shell plating of B/5 or 11,5 m, whichever is less, measured inboard from the ship's side at right angle to the centre line at the level of the summer load line, and at a vertical distance from the moulded line of the bottom shell plating at centre line not less than B/15 or 6 m, whichever is less but nowhere less than 760 mm from the shell plating.

102 Tanks intended for carriage of cargoes for which Ship type 2 is required are to be located at a vertical distance from the moulded line of the bottom shell plating at centreline of B/15 or 6 m, whichever is less, and nowhere less than 760 mm from the shell plating.

103 For Ship type 3, there are no restrictions in respect of cargo tank location.

C. Location and Separation of Spaces

C 100 General

101 A cofferdam is to be provided at aft end of cargo area. Spaces which may be approved as cofferdams, see F!OO.

102 Fuel oil bunker tanks are not to be situated within the cargo area. Such tanks may, however, be situated at forward and aft end of cargo area instead of cofferdams.

The fuel oil tanks are not to extend beneath cargo tanks.

Ships which do not have bunker tanks arranged adjacent to cargo tanks, will get the letter k added to the series ofletters and numbers given in the "Register of Vessels classed with DNV".

103 Machinery of category A and boiler spaces are to be positioned aft of the cargo area, but not necessarily aft of fuel oil tanks.

Where deemed necessary, machinery spaces other than those of category A may be permitted forward of the cargo area.

DET NORSKE VERITAS


104 The lower portion of the cargo pump room may be recessed into machinery and boiler spaces to accommodate pumps, provided the deck head of the recess is in general not more than one-third of the moulded depth above the keel, except that in the case of ships of not more than 25 000 tons deadweight, where it can be demonstrated that for reasons of. access and satisfactory piping arrangements this is impracticable, a recess in excess of sµch height may be permitted, though not exceeding one half of the moulded depth above the keel.

105 Accommodation spaces and service spaces are to be positioned outside the cargo area, but not necessarily aft of fuel oil tanks.

Accommodation spaces are not to be situated directly onto fuel oil bunker tanks adjacent to cargo tanks.

106 Where the fitting of a navigation position above the cargo area is shown to be necessary, it is to be for navigation purposes only, and it is to be separated from the cargo tank deck by means of an open space with a height of at least 2 metres.

107 Deck spills are to be kept away from accommodation and service areas through suitable precautionary means, such as a permanent, continuous coaming of a suitable height extending from side to side.

D. Arrangement of Entrances and Other Openings

D 100 Accommodation and gas safe spaces

101 For superstructures and deckhouses containing accommodation and service spaces, the following applies:

- doors, port lights of opening type and other openings to accommodation and service spaces or to other roonis with access to such spaces are to be located outside gasdangerous zones.

102 Access through doors, gaslight or otherwise, is not permitted from a gas-safe space to a gas-dangerous space except for access to service spaces forward of the cargo area through air locks when accommodation spaces are aft.

103 Entrances, air inlets and openings to accommodation and service and control station spaces are not to face the cargo area. They are to be located on the end bulkhead not facing the cargo area and/or on the outboard side of the house at a distance of at least L/25 but not less than 3 ,05 m from the end of the house facing the cargo area. This distance, however, need not exceed 5 m. Port lights facing the cargo area and on the sides of the houses within the distance mentioned above are to be of the fixed (non-opening) type. Wheelhouse windows may be non-fixed and wheelhouse doors may be located within the above limits so long as they are so designed that a rapid and efficient gas and vapour tightening of the wheelhouse can be ensured. Portlights in the first tier on the main deck are to be fitted with inside covers of steel or equivalent material.

104 Cargo control rooms, stores and other spaces not covered by 103 but located within accommodation, service and control stations spaces, may be permitted to have doors facing the cargo area. Where such doors are fitted, the spaces are not to have access to the spaces covered by 103 and the bouodaries of the spaces are to be insulated to A-QO class (see Sec.11 ).

105 Bolted plates for removal of machinery may be fitted in boundaries facing the cargo area. S_uch plates are to be insulated to A-60 class (see Sec.11). Signboards giving instruction that the plates are to be kept closed unless the ship is gas-free, are to be posted on board.

106 Access to gas safe spaces withill the cargo area are normally to be arranged from a gas safe zone. An air lock may, however, be permitted between a gas dangerous zone on the open deck and a gas safe space. The entrance of the air lock shall in that case comply with 107.

107 Entrance through air locks to gas safe spaces is to be arranged at a horizontal distance of at least 3 m from any opening to a gas dangerous space containing gas sources, such as valves, hose connection or pump used with the cargo.

108 Air locks are to comply with the following requirements:

- air locks are to be enclosed by gaslight steel bulkheads with two substantially gas tight self-closing doors spaced at least 1,5 m and not more than 2,5 m apart. The door sill height is to comply with requirements given in Pt.3 Ch. I Sec.11 B, but is not to be less than 300 mm.

- air locks are to have a simple geometrical form. They are to provide free and easy ~assage, and are to have a deck area not less than 1,5 m . Air locks are not to be used for other purposes, for instance as store rooms.

- an alarm (acoustic and visual) is to be released on both sides of the air lock to indicate if more than one door have been moved from the closed position.

- air locks are to have effective ventilation. Ventilation requirements, see Sec.10.

D 200 Gas dangerous spaces and cargo tanks

201 Pump room entrances are to be from open deck.

202 Doors to gas dangerous spaces, situated completely upon the open deck, are to have as low a sill height as possible.

203 For cargo tanks, no hatches, openings for ventilation. ullage plugs or inspection openings are to be arranged in enclosed compartments.

D 300 Access to and within cargo tanks, void spaces and other spaces in the cargo area

301 Arrangements for void spaces, cargo tanks and other spaces in the cargo area are to be such as to ensure adequate access for complete inspection.

302 Access to cofferdams, ballast tanks, cargo tanks and other spaces in the cargo area is to be directed from the open deck. Access to double bottom spaces may be through a cargo pump room, pump room, deep cofferdam, pipe tunnel or similar compartments, subject to consideration of ventilation aspects.

303 For access through horizontal openings, hatches or manholes, the dimensions are to be sufficient to allow a person wearing a breathing apparatus to ascend or descend without obstruction and also to provide a clear opening to facilitate the hoisting of an injured person from bottom of the space. The minimum clear opening is to be not less than 600 mm x 600 mm.

304 For access through vertical openings, or manholes providing passage through the length and breadth of the space, the minimum clear opening is to be not less than 600 mm x 800 mm at a height of not more than 600 mm from the bottom shell plating unless gratings or other footholds are provided.

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305 Smaller dimensions than specified in 303 and 304 may be approved in special circumstances.

E. Guard Rails and Bulwarks

E 100 Arrangement 101 On tank deck open guard rails are normally to be fitted. Plate bulwarks, with a 230 mm high continuous opening at lower edge, may be accepted upon consideration of the deck arrangement and probable gas accumulation.

F. Cargo Pump Rooms, Cofferdams and Pipe Tunnels

F 100 General 101 Arrangements are to be installed to deal with possible leakage from cargo pumps and valves in the pump room.

102 Cofferdams are to be of sufficient size for easy access to all parts, and they are to cover the entire adjacent tank bulkheads with a mmimum distance between bulkheads of 600 mm. 103 Pump rooms and ballast tanks are accepted as cofferdams. See also C102. 104 Spaces surrounding independent tanks, are normally accepted as cofferdams.

105 Pipe tunnels are to have ample space for inspection of the pipes, and the l'.ipes are to be situated as high as possible above the ship s bottom.

106 On ships with integral tanks, no connection between a pipe tunnel and the engine room, either by pipes or manholes, will be accepted.

G. Diesel Engines Driving Emergency Fire Pumps, etc.

G 100 General 101 Diesel engines driving emergency fire pumps, etc., are to be installed in a gas safe space.

102 The exhaust pipe of the diesel engine is to have an effective spark arrester and is to be led out to the atmosphere at a safe distance from areas of gas danger.

H. Chain Locker and Windlass

H 100 General 101 The chain locker is to be arranged as a gas safe space. Windlass and chain pipes are to be situated in a gas safe zone.


I. Anodes, Washing Machines and Other Fittings in Tanks and Cofferdams

I 100 General

101 Anodes, washing machines and- other permanently attached equipment units in tanks and cofferdams are to be securely fastened to the structure. The units and their supports are to be able to withstand sloshing in the tanks and vibratory loads as well as other loads which may be imposed in service.

Guidance note: When selecting construction materials in permanently attached equipment units in tanks and cofferdams, due consideration ought to be given to the contact spark-producing properties.

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J. Slop Tanks

J 100 Arrangement

101 One or more slop tanks for storage of contaminated bilge water from cargo area and tank washings are to be provided. Means are to be provided to transfer contaminated water to on-shore slop tanks. Cargo tanks may be accepted as slop tanks.

K. Stowage of Cargo Samples

K 100 General

101 Samples which have to be kept on board should be stowed in a designated space situated in the cargo area or, exceptionally, elsewhere subject to special approval.

K 200 Arrangement

201 The stowage space should be:

a) cell-divided in order to avoid shifting of the bottles at sea,

b) made of material fully resistant to the different liquids intended to be stowed, and

c) equipped with adequate ventilation arrangements.

202 Samples which react with each other dangerously, should not be stowed close to each other.

203 Samples should not be retained on board longer than necessary.

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SECTION 4 ARRANGEMENT IN HOLD SPACES

Contents

A. General e'. A 100 Distance between tanks and hull

B. Gas Pressure Relief Devices B 100 Pressure/vacuum relief valves

C. Sealing around Tanks C 100 General

D. Earth Connections D 100 General

A. General

A 100 Distance between tanks and hull

Drainage sumps will be considered in each case.

B. Gas Pressure Relief Devices

B 100 Pressure/vacuum relief valves

101 If spaces for independent tanks can be completely closed, these spaces are to be equipped with pressure and vacuum relief valves. The number and size of these valves are to be decided depending on size and shape of the spaces.

102 The valves are normally to open at a pressure of 0, 15 bar above and below atmospheric pressure.

101 The distance between independent tanks and the dis- C. Sealing around Tanks lance between such tanks and parts of the hull is to be suf-ficient to give reasonable space for inspection and C 100 General maintenance.

Guidance note: The free distance between independent tanks and the inner edge of ordinary frames should not be less than 500 mm. The free space between tanks and web frames should be not less than 50 mm.

The free distance between independent tanks and the inner bottom should generally be not less than 400 mm.

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102 The distance between the ship's shell and an independent tank is nowhere to be less than· 760 mm.

103 The vertical distance between independent tanks and the outer bottom is not to be less than the Rule height for the centre girder in dry cargo ships, see Pt.3 Ch. I Sec.6, and is normally not to be less than B/15.

101 Efficient sealing is to be provided where independent tanks extend above the upper deck. The sealing material is to be such that it will not deteriorate, even at considerable movements between the tanks and the deck.

The sealing is to be able to withstand all temperatures and environmental hazards which may be expected.

D. Earth Connections

D 100 General

101 At least two effective earth connections between each tank and the hull are to be arranged.

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SECTION 5 SCANTLINGS AND TESTING OF CARGO TANKS

Contents

A. Scantlings of Cargo Tanks A 100 Integral tanks A 200 Independent tanks

B. Requirements for Testing of Welds and Non-Destructive Testing

B 100 General B 200 Welding procedure tests B 300 Production weld tests

C. Testing of Tanks C 100 Integral tanks C 200 Independent tanks

A. Scantlings of Cargo Tanks

A 100 Integral tanks

101 Scantlings for integral tanks are to be in accordance with Pt.3.

The principles for direct strength calculations given in Ch.3 Sec.2 shall be followed.

For materials other than mild steel, the minimum thickness requirements will be considered in each case.

A 200 Independent tanks

201 Scantlings of independent tanks, constructed mainly of plane surfaces, are to be in accordance with relevant requirements given in Pt. 3 Ch. I. Tanks of pressure vessel configuration type (cylinders, spheres etc.) are to be in accordance with the requirements given in Ch.5 Sec.5.

B. Requirements for Testing of Welds and Non-Destructive Testing

B 100 General

101 Non-destructive testing of tank shell welds for chemical tankers with Ship type 1 and Ship type 2 notations are to be carried out as given in Table Bl. For chemical tankers

Table Bl

Butt welds. l)

with Ship type 3 notation, non-destructive testing is to be as for oil carriers.

102 The required minimum number of radiographs are based on a film length not less than 40 cm. Most of the films are to be placed at weld crossings and highly stressed connections.

Radiographs are at least to meet the requirements to mark 4 (blue) according to IIW Collection of Reference Radiographs of Welds in Steel.

B 200 Welding procedure tests

201 Welding procedure tests are required for independent tanks.

202 The requirements for welding procedure testing are as given in Pt.2 Ch.3 Sec.2 except that:

- Charpy tests are not required for austenitic stainless steel. - For C-Mn steel Charpy tests shall be carried out at the

same temperature as specified for the base material. If Charpy tests are not required for the base material, the Charpy test shall be carried out at room temperature.

203 Special welding procedure tests will not be required if previous welding procedure for similar material, thicknesses and welding positions are satisfactorily documented.

B 300 Production weld tests

301 Production weld tests are required for independent tanks type a4 (pressure tanks) and independent tanks a3 (atmospheric), if of pressure vessel configuration i.e. cylindrical, spherical.

302 The requirements for production weld testing are as given for independent cargo tanks type C in Ch.5 Sec.5 except that:

- Charpy tests are not required for austenitic stainless steel. - For C-Mn steel Charpy test shall be carried out at the

same temperature as specified for the base material. If Charpy tests are not required for the base material, the Charpy tests shall be carried out at room temperature.

Non-destructive testing

Welds other than butt welds. Tank type Min. number of radiographs. Surface crack detection. (L = ship's length in m.

Im = total length of welds in m) % of total weld length

Integral tanks 2) a1 n = 50 + 1,25 (L2/100) >)

a2 n = (U20) j)

a3 20% 10% Nozzles 100%

Independent tank Longitudinal welds: 100 % 10% a4 Transverse welds: 10% Nozzles 100%

I) Butt welds of face plates and web plates of girders, stiffening rings etc. are to be radiographed as considered necessary.

2) Guidance: Where double continuous fillet weld is used full penetration weld at some points is recommended in order to reduce the possibility of leakage along the roof of the fillet weld.

3) The extent of surface crack detection will be decided on the basis of the visual inspection of the boundary welds. Normally this will not exceed 5% of the total weld length.

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C. Testing of Tanks

C 100 Integral tanks

101 Pressure testing of integral tanks is to be carried out in accordance with Pt.3 with the following additional requirement:

All cargo tanks are to be subjected to a tightness test. Tank boundary welds are not to be painted before the tightness test is carried out.

In addition the cargo tanks are to be subjected to a hydraulic test so that all the tank boundaries are. tested from at least one side.

C 200 Independent tanks 201 Pressure testing of independenf tanks type a3 are normally to be carried out as specified for integral tanks in 101.

Independent tanks type a4 are normally to be hydraulically tested to 1,5 times the design pressure.

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Rules for Ships, July 1999 Pt.5 Ch.4 Sec.6 - Page 13

SECTION 6 PIPING SYSTEMS IN CARGO AREA

Contents

A. Pumping and Piping Systems for Bilge, Ballast and Fuel Oil A 100 General A 200 Cargo pump rooms A 300 Cofferdams and pipe tunnels A 400 Spaces for independent tanks A 500 Ballast tanks A 600 Fuel oil tanks

B. Cargo Piping System B 100 General B 200 Cargo pumps . B 300 Arrangement and general design B 400 Pressure indication B 500 Welding procedure tests B 600 Testing

C. Stripping of Cargo Tank and Cargo Lines C I 00 General

D. Discharge of Contaminated Water D 100 Location of discharge outlet D 200 Sizing of the discharge outlet D 300 Cargo Record Book

E. Stern loading and unloading arrangements E 100 General E 200 Piping arrangement E 300 Accommodation entrances E 400 Electrical equipment - Fire fighting

A. Pumping and Piping Systems for Bilge, Ballast and Fuel Oil

A 100 General

101 There is to be no connection between the piping systems serving the area limited by the aft bulkhead of the cofferdam aft of the cargo area and the forward bulkhead of the cofferdam forward of the cargo area and the systems in the remainder of the ship except as specially permitted by this section.

102 The steam temperature in steam pipes in the cargo area is not to exceed 220°C.

A 200 Cargo pmnp rooms

201 Two possibilities for drainage are to be provided, one of which is to be operable from open deck. One ejector with two sources of supply will be accepted.

202 Bilge pnmp/ejector independent of the cargo pumps is to be fitted for drainage of the cargo pump rooms.

203 The bilge pipes in a cargo pump room are not to be led into the engine room.

A 300 Cofferdams and pipe tunnels

301 Cofferdams and pipe tunnels are to be provided with sounding pipes and with air pipes led to the atmosphere.

302 Cofferdams and pipe tunnels are to be provided with bilge suctions.

A 400 Spaces for independent tanks

401 Spaces for independent tanks are to be connected to a bilge system.

402 The capacity is normally to be such that the requirements given in Pt.4 Ch.1 Sec.4 are complied with. However, these requirements may be reduced by 50%, when the volume of the tanks is more than 75 % of the total volume of the space.

403 Cargo pumps may be accepted for bilge· system purposes to spaces for independent tanks when the pumps are so arranged that they effectively can be used for this purpose. The necessary pipe connection between cargo pumps and the space around the tanks are not to penetrate any part of tank walls situated in closed spaces or lower than the liquid level to maximum filling of the tank. Pipe connections are to be so arranged that cargo cannot be pumped into the spaces due to incorrect operation of valves etc.

A 500 Ballast tanks

501 Filling or discharge of tanks within cargo area with ballast is to be carried out from the cargo pump room or a similar gas-dangerous space except as permitted by 502.

502 Pumps, ballast lines, vent lines and other similar equipment serving permanent ballast tanks should be independent of similar equipment serving cargo tanks and from cargo tanks themselves. Discharge arrangements for permanent ballast tanks sited immediately adjacent to cargo tanks should be outside engine room and accommodation spaces. Filling arrangements may be in the engine room provided that such arrangements ensure filling from tank deck level and non-return valves are fitted.

503 Filling of ballast in cargo tanks may be arranged from deck level by pumps serving permanent ballast tanks, provided that the filling line has no permanent connection to cargo tanks or piping and that non-return valves are fitted.

504 Filling lines to permanent ballast tanks are to be so arranged that the formation of static electricity is reduced, e.g. by reducing the free fall into the tank to a minimum.

505 Suction for seawater to permanent ballast tanks is not to be arranged in the same sea chest as used for discharge of ballast water froIIJ cargo tanks, see also B305.

Guidance ·note: Seawater suction should be arranged at the opposite side from the discharge of ballast water from cargo tanks.

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506 Lines from engine room to ballast tanks forward of cargo area are to be carried outside cargo tanks.

A 600 Fuel oil tanks

601 Fuel oil bunker tanks situated at forward or aft end of the cargo area may be connected directly to pumps in the engine room. The pipes are not to pass through cargo tanks.

B. Cargo Piping System

B 100 General

101 A complete system of piping and pumps is to be provided for the cargo tanks.

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This system is to be entirely separate from all other piping systems on board.

Exemption, see Sec. 9 regarding pipes for ventilation or inerting purposes.

102 The cargo piping system is to be dimensioned according to Pt.4 Ch. I Sec.6. The design pressure p is the maximum working pressure to which the system may be subjected. Due consideration is to be given to possible liquid hammer in connection with quick-closing valves.

The design pressure for cargo piping is as a minimum to be taken as I 0 bar.

103 The cargo piping is to be joined by butt welding with a minimum of flange connections.

- Flange types A and B will be accepted in piping systems with design pressure p> 16 bar. See Fig.4. Pt.4 Ch.I Sec.6.

- Flange types A, B and C will be accepted in piping systems with design pressure p~16 bar.

- Flange connections in piping systems constructed of materials other than mild steel, will be specially considered.

B 200 Cargo pwnps

201 At least two independently driven cargo pumps are to be connected to the system.

202 In tankers where cargo tanks are equipped with independent pumps (e.g. deep well pumps) and where the size of the tanks is small compared to the total capacity of the ship, the installation of one pump per tank may be approved. Satisfactory facilities are to be provided for emptying the tanks in an emergency.

203 Hydraulically powered pumps, submerged in cargo tanks (e.g. deep well pumps), are to be arranged with double barriers, preventing the hydraulic system serving the pumps from being directly exposed to the cargo. The double barrier is to be arranged for detection and drainage of possible cargo leakages.

204 Where machinery in cargo pump room or other gas dangerous rooms are driven by shafting passing into the pump room through bulkheads or deck plating, gaslight glands are to be fitted. The glands are to be efficiently lubricated and are to be constructed so as to reduce the risk of overheating. The glands are to be visible and easily accessible.

Parts which may accidentally come into contact if the seal is badly aligned or if a bearing is damaged, are to be of such material that no spark will occur. If an expansion below is fitted, it is to be hydraulically pressure tested.

205 Displacement pumps are to have relief valves with discharge to the suction line.

206 Means are to be provided for stopping the pumps from an easily accessible position outside the pump room.

B 300 Arrangement and general design

301 The complete cargo piping system is to be located within the cargo area. Bow or stem loading and discharge arrangements may be accepted by the Society after special consideration.

302 Valves or branch pieces, which connect the cargo pipeline's shore connection on deck, and cargo piping are to be supported with due regard to load stresses.

303 Expansion elements are to be provided in the cargo piping as necessary. The elements are nof to be of the sliding type.

304 Filling lines to cargo tanks are to be so arranged that the formation of static electricity is reduced, e.g. by reducing the free fall into the tank to a minimum.

305 The discharge of ballast water from cargo tanks is to be arranged in such a way as to prevent the ballast water from being drawn into sea suctions for other pipe systems, e.g. cooling water systems for machinery.

Guidance note:

Ballast water discharges which are located in accordance with MARPOL 73/78, Annex I, Reg. 15 are regarded as satisfactory with respect to the requirements in 305.

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306 Cargo piping systems are not to be installed under deck between the outboard side of the cargo containment spaces and the skin of the ship, unless clearances required in Sec. I D are maintained. This requirement does not apply when damage to the pipe would not cause release of cargo.

307 Means for drainage of the cargo lines are to be provided.

308 Runs of cargo piping, located below the weather deck, may run from the tank they serve and penetrate tank bulk -heads or boundaries common to adjacent (longitudinally or transversely) cargo tanks, ballast tanks or empty tanks or pump rooms, provided that inside the tank they serve, the runs are fitted with a stop valve operable from the weather deck.

As an exception, where a cargo tank is adjacent to a pump room the stop valve operable from the weather deck may be situated on the tank bulkhead on the pump room side, provided an additional valve is fitted between the bulkhead valve and the cargo pump.

309 Runs of cargo piping installed in pipe tunnels are also to comply with the requirements in 308 and 311. The tunnel is not to have any other openings except to the weather deck and the pump room.

310 Runs of cargo piping through bulkheads are not to utilise flanges bolted through the bulkhead.

311 In any pump room where a pump serves more than one tank, a stop valve is to be fitted in the line to each tank.

312 A stop valve is to be fitted at each cargo hose shore connection.

313 A stop valve capable of being manually operated, is to be fitted on each tank filling and discharge line, located near the tank penetration. If individual deep-well pumps are installed, a stop valve at the tank is not required on the discharge line.

314 Means for gas-freeing of the cargo lines are to be provided.

315 The controls necessary during transfer and/or transport of cargoes other than in pump rooms which have been specially dealt with are not to be located below the weather deck.

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6

316 If independent tanks are required according to List of Cargoes, all pipe connections shall be above the liquid levef.

B 400 Pressure indication

401 Pump discharge pressure gauges are to be provided outside the pump room.

B 500 Welding procedure tests

501 Welding procedure tests are required for cargo piping of austenitic stainless steel.

502 The requirements are as given in Pt.2 Ch.3 Sec.2 except that Charpy tests are not required for austenitic stainless steel.

503 Special welding procedure tests will not be required if previous welding procedure tests for similar material, thicknesses and welding positions are satisfactorily documented.

Guidance note: In order to comply with requirements for passing radiographic testing of welding of butt joints on stainless steel pipes, it is strongly recommended that welding is carried out with argonbacking inside piping.


B 600 Testing

601 Cargo piping butt welds are to be subjected to radiographic testing covering at least 10% of the welded connections, when steel pipes are used. This percentage may be increased as found necessary by the Surveyor. All radiographs are at least to meet the requirements to mark 4 (blue) according to IIW Collection of Reference Radiographs of Welds in Steel.

602 Cargo piping is to be hydrostatically tested in the presence of the Surveyor to a test pressure = 1,5 x the design pressure.

If hydrostatic testing of separate lengths of piping, valves, expansion elements etc. has been carried out prior to the installation on board, a tightness test only is required after completion of the installation onboard.

C. Stripping of Cargo Tank and Cargo Lines

C 100 General

101 For certain cargoes as indicated in the List of Cargoes, the amount of cargo residues in the cargo tank and associated piping is required to be less than the Limits specified in 102 and I 03.

102 Cargo stripping performance str 0,3 means that the amount of cargo residue in the tank and associated piping does not exceed 0,3 m3.

103 Cargo stripping performance str 0,1 means that the amount of cargo residue in the tank and associated piping does not exceed 0, 1 m3.

104 The verification of the above residue quantities is to be through actual testing with water and in accordance with an approved test procedure.

D. Discharge of Contaminated Water

D 100 Location of discharge outlet

101 For discharge of cargo contaminated water an outlet located below the waterline in vicinity of the tum of the bilge is to be arranged within the cargo area.

Rules tor Ships , July 1999 Pt.5 Ch.4 Sec.6 - Page 15

102 The outlet(s) is to be located such that the cargo contaminated discharges will not enter: the ship's seawater intakes.

D 200 Sizing of the discharge outlet

201 The internal diameter of the outlet is not to be less than:

Qo D=

SL

where

Qo = discharge rate (m3 /h) L = distance of outlet from forward perpendicular (m).

In the case of angled outlets only the velocity component of the discharge transverse to the ship's longitudinal axis may be considered when determining Q0 .

The discharge rate assumed as the basis for outlet(s) sizing is not to be taken less than the aggregate throughput of the washing machines in anyone tank.

D 300 Cargo Record Book

301 All ships having a Certificate of Fitness (COF) or a Noxious Liquid Substances (NLS) Certificate for the carriage of liquid substances as listed in the !BC Code Chapter 17 and 18, are to have on board a Cargo Record Book according to Reg. 9 in MARPOL 73178, Annex II.

E. Stern loading and unloading arrangements

E 100 General

101 Subject to the approval of the Society, cargo piping may be fitted to permit stem loading and unloading. Portable arrangements will not be permitted.

102 Stem loading and unloading lines should not be used for the transfer of products required to be carried in Ship type 1 ships. Stem loading and unloading lines should not be used for the transfer of cargoes emitting toxic vapours required to comply with Sec.9 B400, unless specifically approved by the Society.

E 200 Piping arrangement

201 In addition to Pt.4 Ch. I Sec.6, the following provisions apply:

a) The piping outside the cargo area should be fitted at least 760 mm inboard on the open deck. Such piping should be clearly identified and fitted with a shut-off valve at its connection to the cargo piping system within the cargo area. At this location, it should also be capable of being separated by means of a removable spool piece and blank flanges when not in use.

b) The shore connection should be fitted with a shut-off valve and a blank flange.

c) The piping should be full penetration butt welded, and fully radiographed. Flange connections in the piping should only be permitted within the cargo area and at the shore connection.

d) Spray shields should be provided at the connections specified in a) as well as collecting trays of sufficient capacity with means for the disposal of drainage.

e) The piping should be self-draining to the cargo area and preferably into a cargo tank. Alternative arrangements for draining the piping may be accepted by the Society.

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Rules for Ships , July 1 999 Page 16 - Pt.5 Ch.4 Sec.6

f) Arrangements should be made to allow such piping to be purged after use and maintained gas-safe when not in use. The vent pipes connected with the purge should be located in the cargo area. The relevant connections to the piping should be provided with a shut-off valve and blank flange.

E 300 Accommodation entrances

301 Entrances, air inlets and openings to accommodation, service and machinery spaces and control stations should not face the cargo shore connection location of stem loading and unloading arrangements. They should be located on the outboard side of the superstructure or deckhouse at a distance of at least 4 % of the length of the ship but not less than 3 m from the end of the house facing the cargo shore connection location of the stem loading and unloading arrangements. This distance, however, need not exceed 5 m. Sidescuttles facing the shore connection location and on the sides of the superstructure or deckhouse within the distance mentioned above should be of the fixed (non-opening) type. In addition, during the use of the stem loading and unloading arrangements, all doors, ports and other openings on the corresponding superstructure or deckhouse side should be kept closed. Where, in the case of small ships, compliance with Sec.3 D103 and this paragraph is not possible, the Society may approve relaxations from the above requirements.

302 Air pipes and other openings to enclosed spaces not listed in 301 should be shielded from any spray which may come from a burst hose or connection.

303 Escape routes should not terrnillate within the coamings required by 304 or within a distance_of 3 m beyond the coamings. ··

304 Continuous coamings of suitable height should be fitted to keep any spills on deck and away from the accommodation and service areas.

E 400 Electrical equipment - Fire fighting

401 Electrical equipment within the coamings required by 304 or within a distance of 3 m beyond the coamings should be in accordance with the requirements of Sec.12.

402 Means of communication between the cargo· control station and the cargo shore connection location should be provided and certified safe, if necessary. Provision should be made for the remote shutdown or cargo pumps from the cargo shore connection location.

403 Ships fitted with stem loading and unloading arrangements should be provided with one additional foam monitor meeting the requirements of Sec.11 C208 and Sec.11 C21 l. The additional monitor should be located to protect stem loading and unloading arrangements. The area of the cargo line aft of the cargo area should be protected by the above mentioned applicator.

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SECTION 7 CARGO HEATING AND COOLING ARRANGEMENTS

Contents

A. Cargo Heating and Cooling Arrangements A 100 General A 200 Heating of cargoes with temperatures above 80°C

A. Cargo Heating and Cooling Arrangements

A 100 General

101 Requirements for water systems and steam systems are identical to those of Pt.4 Ch. l unless otherwise stated.

102 The heating and cooling media are to be compatible with the cargo.

103 Heating or cooling systems are to be provided with valves to isolate the system for each tank and to allow manual regulation of flow.

104 For any heating or cooling system, means are to be provided to ensure that, when in any other but the empty condition, a higher pressure is maintained within the system than the maximum pressure head exerted by the cargo tank content on the system.

105 Cargo heating and cooling pipes are not to penetrate the cargo tank boundaries other than on the top of the tank.

106 Means are to be provided for measuring the cargo temperature. When overheating or overcooling could result in a dangerous condition, temperature alarm is to be provided. The means for measuring the cargo t~mperature shall be of restricted or closed type, respectively, when a restricted or closed gauging device is required for individual substances as shown in the List of Cargoes.

Guidance note:

- A restricted temperature measuring device is subject to the definition for a restricted gauging device in Sec.13 BlOO, e.g. a portable thermometer lowered inside a gauge tube of the restricted type.

- a closed temperature measuring device is subject to the definition for a closed gauging device in Sec.13 BlOO, e.g. a remote thermometer of which the sensor is installed in the tank.


107 Where products with a sigii.ificant toxic hazard are being heated or cooled, the heating or cooling media are as indicated in the List of Cargoes to operate:

- in a circuit independent of other ship's services, except for another cargo heating or cooling system, and not enter the engine room; or

- in a circuit dependent of other services, if the condensate is not returned to the engine room, or

- in a system external to the tanks; or - in a circuit where the medium is sampled to check for the

presence of cargo before it is recirculated to other ship's services or into the engine room. The sampling equipment is to be located within the cargo area and be capable of detecting the presence of any toxic cargo being heated or cooled.

Guidance note: The suitability of the sampling method must be documented for each product.

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108 A cooling system is to be arranged in accordance with the requirements in Ch.5 Sec.7 A201. ln addition the cooling system is to comply with the requirements given in Ch. JO to the extent these are applicable.

109 Steam and exhaust pipes for heating coils fitted in cargo tanks, are to be arranged for blank flanging outside the engine or boiler room.

110 Heating medium temperature is normally not to exceed 220°C.

111 Condensate from cargo heating :systems is not to be used for feed water for main boilers.

A 200 Heating of cargoes with temperatures above 80'C 201 Heating plants for cargoes with temperatures above 80 ° C are to be arranged with redundancy.

202 Pumps and valve systems are to be suitable for the type of cargo to be transported.

203 Heating system for cargo pumps and cargo lines to be arranged as found necessary.

204 Temperature gauges are to be arranged in each cargo tank enabling the monitoring of temperature at bottom, middle and top of tanks.

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SECTION 8 MARKING OF TANKS, PIPES AND VALVES

A. General A 100 Marking plates A 200 Pipelines

Contents

A 300 Marking of independent tanks

A. General

A 100 Marking plates

101 Marking plates are to be made of corrosion resistant material, and are to be permanently fixed to valve handles, flanges or similar parts. Markings, bolt holes, etc. in the tanks themselves are to be avoided.

The lettering is to be impressed on the marking plate in letters of at least 5 mm height. The marking plates are to be placed in easily visible positions and are not to be painted.

A 200 Pipelines

201 Pumps, valves and pipelines are to be distinctively marked to identify the service and tanks which they serve. General remarks regarding marking of valves are given in Pt.4 Ch. I Sec. 3.

A 300 Marking of independent tanks

301 Every independent tank is to have a marking plate giving the followmg information as relevant:

Tank No. Design vapour pressure: bar Maximum cargo density: kg/m3 Capacity of the tank: m3 (98 % filled) Test pressure: bar Name of builder: Year of construction:

The marking plate may also be used for the necessary marking of ioentification.

For definitions of: Design vapour pressure p,,, see Sec. I B. Test pressure, see Sec.5 L.

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SECTION 9 GAS FREEING AND VENTING OF CARGO TANKS

Contents

A. Gas Freeing of Cargo Tanks A 100 General

B. Tank Venting Systems B 100 General B 200 Tank venting system, type c1 B 300 Tank venting system, type c2 B 400 Tank venting system, type c3

A. Gas Freeing of Cargo Tanks

A 100 General

101 Means for gas freeing of the tanks are to be provided.

The arrangement for gas freeing cargo tanks should be such as to minimize the hazards due to the dispersal of flammable or toxic vapours in the atmosphere and to flammable or toxic vapour mixtures in a cargo tank.

The ventilating system for cargo tanks is to be used exclusively for ventilating purposes. Connection between cargo tank and pump room ventilation will not be accepted.

102 Gas freeing operations should be carried out such that vapour is initially discharged in one of the following ways:

1) through the vent outlets specified in B300 or B400; or

2) through outlets at least 2 m above the cargo tank deck level with a vertical efflux velocity of at least 30 mis maintained during the gas freeing operation; or

3) through outlets at least 2 m above the cargo tank deck level with a vertical efflux velocity of at least 20 mis which are protected by suitable devices to prevent the passage of flame.

Guidance note: When the flammable vapour concentration at the outlets has been reduced to 30% of the lower flammable limit and in the case of a toxic product the vapour concentration does not present a significant health hazard, gas freeing may thereafter be continued at cargo tank deck level.


103 The outlets referred to in I 02 2) and 102 3) may be fixed or portable.

104 Installations where the fans for ventilation and gas freeing of the tanks are permanently installed, will be specially considered. The air supply line from the fan is to have a shut-off valve and a non-return valve.

105 Piping from a ventilating plant or inert gas plant is to be connected to cargo pressure piping systems only for ventilating or inerting purposes.

106 Permanent pipe connections between a ventilating plant or inert gas plant and cargo pressure piping systems will normally not be accepted.

107 When a ventilating plant is connected to the cargo lines, the connecting pipe is to have two valves, one of which is to be a non-return valve or a flap valve, and the other a stop valve.

B. Tank Venting Systems

B 100 General

101 In the following the term •pressure relief valve• denotes a safety valve which opens at a given internal pressure above atmospheric pressure, and the term .:vacuum relief valve» denotes a safety valve which opens at a given internal pressure below atmospheric pressure. By P/V valves are meant combined pressure/ vacuum relief valve~.

102 The master should be provided with the maximum permissible loading and unloading rates for each tauk or group of tanks consistent with design of the venting systems.

103 Tank venting systems as described below are to be provided according to the List of Cargoes.

B 200 Tank venting system, type c 1

201 For some particular products an open tauk venting system is applicable.

B 300 Tank venting system, type c2

301 The tanks are to have arrangement for pressure/ vacuum relief during voyage and venting during loading and unloading with closed tank hatch covers.

302 Pressure vacuum relief valves are to be fitted to each tank to limit the pressure or vacuum in the tank.

The venting system may conslst of individual vents from each tank or the vents from each individual tank may be connected on the pressure side of the P/V-valve to a common header. Due regard is in that_ case to be paid to cargo segregation.

303 Shut-off valves are not to be fitted neither above nor below P/V valves, but by-pass valves may be provided.

304 The opening pressure of the pressure relief valves is normally to be 0,20 bar above atmospheric pressure.

The opening pressure of the vacuum relief valves is normally not to be lower than 0,07 bar below atmospheric pressure.

305 P/V valves are to be located on open deck and are to be of a type which allows the functioning of the valve to be easily checked.

306 Venting systems to be used for cargoes that may cause clogging of the venting lines, will be specially considered.

307 Intake openings of vacuum relief valves are to be located at least 1,5 m above tank deck, and are to be protected against the sea.

The arrangement is to comply ·with the requirements in Pt.3 Ch. I Sec. I!.

308 Cargo tank vent outlets are to be situated not less than 6 metres above the weather deck or above the fore and ;:i.ft gangway, if fitted within 4 metres of the gangway.

The vent exits are also to be arranged at a distance of at least 10 m from the nearest air intake or opening to accommodation and service spaces and ignition sources. The vapour discharge is to be directed upwards in the form of unimpeded jets.

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309 The vent height may be reduced to 3 m above the deck or fore and aft gangway as applicable, provided high velocity vent valves of an approved type with an exit velocity of at least 30 mis, are fitted.

The vent exits are also to be arranged at a distance of at least 10 m from the nearest air intake or openings to accommodation and service spaces and ignition sources.

310 Vapour outlets for tanks to be used for cargoes with flashpoint below 60°C should be provided with approved devices to prevent the passage of flame into the cargo tanks. Due attention is to be paid in the design of P/V valves, flame screens and vent heads to the possibility of the blockage of these devices by the freezing of cargo vapour or by icing up in adverse weather conditions. Provisions should be made that the system and fittings may be inspected, operationally checked, cleaned or renewed as applicable.

311 The vent system is to be sized, allowing for flame screens, if fitted, to permit loading at a design rate without overpressuring the tank. Specifically, under conditions in which a saturated cargo vapour is discharged through the venting system at the maximum anticipated loading rate, the pressure differential between the cargo tank vapour space and the atmosphere is not to exceed 0,2 kp/cm2 or, for independent tanks, the maximum working pressure of the tank.

312 The pipe system for escape gas should be self-draining under all normal operating conditions of list and trim. Where it is necessary to drain venting systems above the level of any P/V valve, capped or plugged drain cooks should be provided.

313 Provision should be made to ensure that the liquid head in any tank does not exceed the test head of that tank; overflow control systems or spill valves, together with

gauging devices and tank filling procedures may be accepted for this purpose.

Guidance note: Where the means of limiting cargo tank ov~rpressure includes an automatic closing valve, the valve shouJd-comply with Sec.13 B200.

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B 400 Tank venting system, type c3

401 The tanks are to have arrangement for pressure/ vacuum relief during voyage and venting during loading and unloading with closed tank hatches in compliance with 200, and with additional requirements as given in 302 and 303.

402 Gas outlets are normally to be at a minimum height of B/3 or 6 m, whichever is greater above the weather deck, or in the case of a deck tank the access gangway, where B ~ ship's moulded breadth. Further, the outlets are not to be less than 6 m above the fore and aft gangway if fitted within a horizontal distance of 6 m from the gangway.

The vent height may be reduced to 3 m above the deck or fore and aft gangway as applicable provided high velocity vent valves of an approved type, directing the vapour/air mi~ture upwards in an unimpeded jet with an exit velocity of at least 30 mis, are fitted.

The outlets are to be situated at a horizontal distance of at least 15 m from air intakes, port holes or doors to accommodation and service spaces.

For ships with length less than 90 m, smaller distances may be accepted.

403 Valved pipe connections for returning the expelled gases ashore during loading, are to be provided.

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SECTION 10 MECHANICAL VENTILATION IN THE CARGO AREA

A. System Requirements A 100 General

Contents

A 200 Fans serving gas dangerous spaces

B. Ventilation, type v2 B 100 Ventilation of cargo handling spaces B 200 Ventilation of spaces not normally entered

C. Ventilation, type v3 C 100 Ventilation of cargo handling spaces C 200 Ventilation of spaces not normally entered

A. System Requirements

A 100 General

101 Independent ventilation systems are to be provided for gas dangerous and gas safe spaces.

Ventilation systems within the cargo area are to be independent of other ventilation systems.

102 The air inlakes for the ventilating systems are to be arranged outside gas dangerous zones at places where is the least possible risk of gas, gas-air mixtures or sparks being drawn into the system.

103 Ventilation ducts for spaces within the cargo area are not to be led through engine rooms, accommodation, working spaces, etc.

104 The capacity of the ventilation plant is normally based on the total volume of the room. An increase in required ventilation capacity may be necessary for rooms having a complicated form.

105 Gas safe spaces are to be arranged with ventilation of the positive pressure type. For gas dangerous spaces where the overpressure may cause spread of gas to adjacent spaces, the ventilation is to be of the extraction type.

106 Gas safe spaces situated in the cargo area are to be fitted with a permanent mechanical ventilation system giving at least 30 air changes per hour.

For gas safe cargo control rooms, the ventilation rate may, however, be reduced to 8 air changes per hour.

107 The air lock spaces are to be mechanically ventilated from a gas safe space or zone on the open weather deck. The ventilation capacity is to be at least 30 air changes per hour.

108 Ballast pump rooms and tween deck spaces not containing cargo handling equipment (e.g. pumps, valves, etc.) are to be provided with a mechanical ventilation system giving at least 20 air changes per hour.

109 Ventilation systems for pump and compressor rooms are to be in operation when pumps or compressors are working. Pumps and compressors are not to be started before the ventilation system in the electric motor room has been in operation for 15 minutes. Warning notices to this effect are to be placed in an easily visible position near the control stand.

110 Electric fan motors are noCto be installed in ventilation ducts for cargo handling spaces.

111 Starters for fans for ventilation of gas safe spaces within the cargo area are to be located outside this area or on open deck.

If electric motors are installed in such rooms, the ventilation capacity is to be great enough to prevent the temperature limits specified in Pt.4 Ch.4, from being exceeded, taking into account the heat generated by the electric motors.

112 Wire mesh protection screens of not more than 13 mm square mesh are to be fitted in outside openings of ventilation ducts.

For ducts where fans are installed, protection screens are also to be fitted inside of the fan to prevent the entrance of objects into the fan housing.

A 200 Fans serving gas dangerous spaces

201 Fans are to be designed with the least possible risk for spark generation.

202 Minimum safety clearances between the casing and rotating parts are to be such as to prevent any friction with each other.

In no case is the radial air gap between the impeller and the casing to be less than 0,1 of the diameter of the impeller shaft in way of the bearing, but not less than 2 mm. It need not be more than 13 mm.

203 The parts of the rotating body and of the casing are to be made of materials which are recognised as being spark proof, and they are to .have antistatic properties.

Furthermore, the installation on board of the ventilation units is to be such as to ensure the safe bonding to the hull of the units themselves.

The following combinations of materials and clearances used in way of the impeller and duct are considered to be nonsparking:

- impellers and/or housing of non-metallic material, due regard being paid to the elimination of static electricity;

- impellers and housings of non-ferrous materials; - impellers· of aluminium alloys or magnesium alloys and

a ferrous (including austenitic stainless steel) housing on which a ring of suitable thickness of non-ferrous materials is fitted in way of the impeller, due regard being paid to static electricity and corrosion between ring and housing;

- impellers and housing of austenitic stainless steel; - any combination of ferrous (including austenitic stainless

steel) impellers and housing with not less than 13 mm tip design clearance.

204 Any combination of an aluminium or magnesium alloy fixed or rotating component and a ferrous fixed or rotating component, regardless of tip clearance, is considered a sparking hazard and is not to be used in these places.

205 Spare parts are to be carried for each type of fan referred to in this section. Normally one motor and one impeller is required carried for each type of fan used in gas dangerous spaces.

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Rules for Ships , July 1999 Page 22 - Pt.5 Ch.4 Sec. 10

B. Ventilation, type v2

B 100 Ventilation of cargo handling spaces

101 Cargo handling spaces are pump rooms, compressor rooms and other enclosed spaces which contain cargo handling equipment and similar spaces in which work is performed on the cargo.

102 A permanent mechanical ventilation system is to be installed capable of circulating sufficient air to give at least 30 air changes per hour. Extraction from above and below floor plates is to be possible, with the following arrangement of exhaust trunking:

- in the pump room bilges just above the transverse floor plates or bottom longitudinals, so that air can flow over the top from adjacent spaces.

- an emergency intake located 2 m above the pump room lower grating, The emergency intake is to have a damper fitted, which is capable of being opened or closed from the exposed main deck and lower grating level.

103 The exhaust outlets which are to discharge upwards are to be situated at least 4 m above tank deck and at least IO m in the horizontal direction from ventilation inlets to the accommodation and other gas safe spaces.

B 200 Ventilation of spaces not normally entered

201 Spaces not normally entered are -cofferdams, double bottoms, duct keels, pipe tunnels, spaces containing cargo tanks and other spaces where cargo may accumulate (water ballast tanks not mcluded).

202 All spaces mentioned in 201 are fo be gasfreeable. If necessary ducting is to be fitted in order to ensure efficient gasfreeing.

203 A mechanical ventilation system (permanent or portable) is to be provided, capable of circulating sufficient air to the compartments concerned. The capacity of the ventilation system is normally to give at least 8 air changes per hour.

C. Ventilation, type v3

C 100 Ventilation of cargo handling spaces 101 The requirements are the same as in B 100, except that the air changes are to be 45 per hour, and the exhaust outlets are to be situated at least I 0 m from ventilation inlets to the accommodation and other gas safe spaces and at least 4 m above the tank deck.

C 200 Ventilation of spaces not normally entered

201 The requirements are the same as for ventilation type v2, see B200.

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SECTION 11 FIRE PROTECTION AND EXTINCTION

Contents

A. Documentation A 100 Plans and particulars

B. Fire Protection B 100 Construction B 200 Accommodation, service and control spaces B 300 Fireman's outfit

C. Fire Extinction C 100 Fire extinguishing in cargo area C 200 Deck fire extinguishing system in cargo area C 300 Fire extinguishing in cargo pump rooms

A. Documentation

A 100 Plans and particulars

101 The following plans and particulars are to be submitted for approval:

- arrangement and specification of fire water main equipment, location of hydrants and stop valves.

- specification of water nozzles, pipes, valves and other fittings in the fire water main line.

- arrangement and specifications of fixed fire extinguishing systems on deck.

- arrangement and specifications of fixed fire smothering installations in enclosed. gas dangerous spaces.

B. Fire Protection

B 100 Construction

101 In lieu of Pt.4 Ch.6 Sec.15 B300 and in addition to complying with the specific provisions for fire integrity of bulkheads and deck mentioned elsewhere in this chapter, the minimum fire integrity of bulkheads and decks are to be as prescribed in Ch. 3 Sec. 7 Tables B 1 and B2.

102 For ships intended to carry products which are "nonflammable" (entry "no" in the column for fire protection in Appendix A), and for ships intended to carry flammable products with flash point above 60°C the requirements to constructional fire protection in Pt.4 Ch.6 Sec.15 apply.

103 Exterior boundaries of superstructures and deckhouses enclosing accommodation and service spaces and including any overhanging decks which support such accommodation, are to be additionally protected against heat for the whole of the portions which face cargo area, and for 3 m aft of the front boundary, by insulation to Class A-60 standard.

104 Bulkheads between cargo pump rooms, including their trunks, and machinery spaces are to be Class A, and are to have no penetrations which are less than Class A-0 or equivalent in all respects, other than the cargo pump shaft glands and similar glanded penetrations.

105 Bulkheads and decks forming divisions separating machinery spaces and cargo pump rooms, including their trunks, respectively, from the accommodation and service spaces, are to be of A-60 Class. Such bulkheads and decks and any boundaries of machinery spaces and cargo pump rooms are not to be pierced for windows or port lights. These requirements, however, do not preclude the installa-

lion of permanent, approved gastighflighting enclosures for illuminating the pump rooms, provided that they are of adequate strength and maintain the integrity and gas tightness of the bulkhead as Class A.

106 Skylights to machinery spaces and cargo pump rooms are to comply with the provisions of 103 as regards windows and portlights, and, in addition, are to be so arranged as to be capable of being easily closed from outside the spaces which they serve.

107 Paints, varnishes and other finishes used on exposed interior surfaces, are not to represent an undue fire hazard.

B 200 Accommodation, service and control spaces

201 For the application of the requirement in Pt.4 Ch.6 Sec.15 BlOO, B200 and B900, only method IC as defined in Pt.4 Ch.6 Sec.IS BlOO is to be used.

202 All materials used in bulkheads, ceiling against steel, insulation etc. are to be of non-combustible type. Fuming strips etc. for bulkheads and ceiling are also to be of noncombustible materials.

203 The framing, including grounds, and the joint pieces of bulkheads, linings, ceilings and draught stops, if fitted, are to be of non-combustible material.

204 Corridor bulkheads, including doors, are to be of Class A or B divisions extending from deck to deck. Where continuous B Class ceilings and/or linings are fitted on both sides of the bulkhead, the bulkhead may terminate at the continuous ceiling or lining. Doors of cabins and public spaces in such bulkheads may have louvre in the lower half.

205 Air spaces enclosed behind ceilings, panellings or linings, are to be divided by close-fitting draught stops spaced not more than 14 m apart.

206 Control stations are to be separated from adjacent enclosed spaces by means of Class A bulkheads and decks. The insulation of these control station boundaries will be considered in each case, with due regard to the risk of fire in adjacent spaces.

207 Stairways which penetrate only a single deck, are to be protected at least at one level by self-closing doors so as to limit the rapid spread of fire from one deck to another. Stairways which penetrate more than a single deck, are to be protected by self-closing steel doors at all levels. Selfclosing doors are not to be fitted with holdback hooks. However, holdback arrangements fitted with remote release fittings of the fail-safe type may be utilised.

208 Lift trunks in machinery spaces and accommodation are to be of .steel and are to be provided with self-closing steel doors. Lift trunks, including doors, are to be insulated to Class A-60. Any windows in lift trunk doors are to be fitted with double wired glass, each glass at least 6 mm in thickness.

209 Ducts provided for ventilation of machinery spaces, are in general not to pass through accommodation or service spaces.

Exemptions from this requirement may be permitted provided that:

- the ducts are constructed of steel and are insulated to Class A-60, or

- the ducts are constructed of steel and are fitted with an automatic fire damper close to the boundary penetrated,

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and are insulated to Class A-60 from the machinery space to a point at least 5 metres beyond the fire damper.

210 Ducts provided for ventilation of accommodation or service spaces, are in general not to pass through machinery spaces. Exemptions from this requirement may be permitted, provided that ducts are constructed of steel and an automatic fire damper is fitted close to the boundary penetrated.

B 300 Fireman's outfit

301 Ships carrying toxic or/and flammable products, are to have onboard sufficient, but not less than 4 complete sets of fireman's outfit. For description of outfit see Pt.4 Ch.6 Sec.11.

302 Ships above 1200 tons gross are to have onboard a special compressor for providing an adequate supply of breathing air.

C. Fire Extinction

C 100 Fire extinguishing in cargo area

101 Suitable fire extinguishing equipment for all products carried is to be provided. Fire extinguishing media considered to be suitable for certain products, are listed for information in the List of Cargoes.

C 200 Deck fire extinguishing system in cargo area

201 All ships with the class notation Tanker for Chemicals or Tanker for C for dedicated chemical cargoes, except those engaged solely in the transport of non-flammable products, are to be fitted with a fixed deck foam fire-extinguishing system in accordance with the following requirements. Ships which are dedicated to the carriage of specific cargoes may, however, be protected by alternative provisions to the satisfaction of the Society when they are equally effective for the products concerned as the deck foam system required for the generality of flammable cargoes.

Guidance note: The term «ships which are dedicated to the carriage of specific cargoes~ means ships which are dedicated to the carriage of a restricted number of cargoes.


202 For ships intended to carry flammable products with flash point exceeding 60°C the requirements as specified for oil tankers in Ch.3 Sec.7 AlOO should be applied in lieu the regulations of this section.

203 Only one type of foam concentrate is to be supplied, and it is to be effective for the maximum possible number of cargoes intended to be carried. For other cargoes for which foam is not effective or is incompatible, additional arrangements to the satisfaction of the Society are to be provided. Basic protein foams should not be used.

204 The arrangements for providing foam are to be capable of delivering foam to the entire cargo tank area as well as into any cargo tank, the deck of which is assumed to be ruptured.

205 The deck foam system is to be capable of simple and rapid operation. The main control station for the system is to be suitably located outside of the cargo tank area, adjacent to the accommodation spaces and readily accessible and operable in the event of fires in the areas protected.

206 The rate of supply of foam solution is to be not less than the greater of the following:

a) 2 l/m2 min of the cargo deck area, where cargo deck area means the maximum breadth of the. ship times the total longitudinal extent of the cargo tank spaces,

b) 20 lim2 min of the horizontal sectional area of the single tank having the largest such area, ·

c) 10 l/m2 min of the area protected by the largest monitor, such area being entirely forward of the monitor, but not less than 1250 I/min. For ships of less than 4000 tons deadweight, the minimum capacity of the monitor is to be to the satisfaction of the Society.

The foam concentrate is to be of an approved type, and delivered with product certificate for the foam on board the vessel including a chemical analysis of the foam.

207 Sufficient foam concentrate is to be supplied ti> ensure at least 30 minutes of foam generation when using solution rates stipulated in 206 (a), (b) and (c), whichever is the greater.

208 Foam from the fixed foam system is to be supplied by means of monitors and foam applicators. At least 50 per cent of the foam rate required in 206 (a) or (b) is to be delivered from each monitor. The capacity of any monitor is to be at least 10 !/min of foam solution per square metre of deck area protected by that monitor, such area being entirely forward of the monitor. Such capacity is to be not less than 1250 I/min. For ships of less than 4000 tons deadweight, the minimum capacity of the monitor is to be to the satisfaction of the Society.

209 The distance from the monitor to the farthest extremity of the protected area forward of that monitor is to be not more than 7 5 % of the monitor throw in still air conditions.

210 A monitor and hose connection for a foam applicator are to be situated both port and starboard at the poop front or accommodation spaces facing the cargo tanks.

211 Applicators are to be provided for flexibility of action during fire-fighting operations and to cover areas screened from the monitors. The capacity of any applicator is to be not less than 400 I/min and the applicator throw in still air conditions is to be not less than 15 m.

The number of foam applicators provided is to be not less than four. The number and disposition of foam main outlets are to be such that foam from at least two applicators can be directed to any part of the cargo tank deck area.

212 Valves are to be provided in the foam main, and in the fire rnain where this is an integral part of the deck foam system, immediately forward of any monitor position to isolate damaged sections of those mains.

213 Operation of a deck foam system at its required output is to permit the simultaneous use of the minimum required nu~ber of jets of water at the required pressure from the fire mam.

214 Suitable portable fire extinguishing equipment for the products to be carried is to be provided and kept in good operating order.

215 All sources of ignition are to be excluded from spaces where flanunable vapotiis may be present.

216 When the alternative deck fire extinguishing system permitted under 20 I is a fixed dry chemical powder fire extinguishing system, the system is to comply with Ch.5 Sec.11 C400.

C 300 Fire extinguishing in cargo pump rooms

301 Ships with the class notation Tanker for Chemicals or Tanker for C for dedicated chemical cargoes, except those engaged solely in the carriage of sodium hydroxide solution (caustic soda, caustic potash and phosphoric acid),

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are to be equipped with a fixed gas fire-extinguishing system in the cargo pump room. The fixed gas fire-extinguishing system may be a carbon dioxide system as specified in 302 to 304 below.

302 A cargo pump room carbon dioxide fire extinguishing system is to comply with the requirements in Pt.4 Ch.6 Sec.3.

303 A notice is to be exhibited at the controls stating that the system is only to be used for fire extinguishing and not inerting purposes, due to the ignition hazard.

304 The amount of gas carried is to be sufficient to provide a quantity of free gas equal to 45 % of the gross volume of the cargo pump room in all cases.

305 A notice is to be exhibited at the controls stating that the system in only to be used for fire extinguishing and not inerting purposes due ·to the electrostatic ignition hazard.


306 Cargo pump rooms of ships which are dedicated to the carriage of specific cargoes are to be protected to the satisfaction of the Society.

Guidance note: The term «ships which are dedicated to· the carriage of specific cargoes», means ships which are dedicated to the carriage of a restricted number of cargoes.

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307 A fire-extinguishing system consisting of either a fixed pressure water spray system or a high expansion foam system could be provided for the cargo pump room if it can be adequately demonstrated to the Society tliat cargoes will be carried which are not suited to extinguishment by carbon dioxide or halogenated hydrocarbons. The appendix to the classification certificate will reflect this conditional require-ment. ·

308 Steam smothering systems are not accepted for cargo pump rooms.

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SECTION 12 ELECTRICAL INSTALLATIONS

Contents

A. General A 100 Application

B. Electrical Installations in Cargo Area and Adjacent to this Area

B 100 B 200 B 300

B 400 B 500 B 600 B 700

B 800

General Cargo tanks Cofferdams and other under deck spaces adjacent to cargo tanks Cargo pump rooms EnClosed Or semi-enclosed spaces above cargo tanks Hazardous areas on the open deck Other spaces in the cargo area and in enclosed or semi

enclosed spaces with direct access to the cargo area Tweendeck spaces

C. Signboards C 100 General

A. General

A 100 Application

101 The requirements in this chapter are additional to those given in Pt.4 Ch.4 and apply to tankers with the class notations Tanker for Chemicals. The requirements may be made wholly or partly valid also for tankers for dedicated chemical cargoes (Tanker for C) in some cases.

102 Tankers exclusively built to carry cargoes with flash point above 60°C will be considered in each case.

B. Electrical Installations in Cargo Area and Adjacent to this Area

B 100 General

101 Electrical equipment and wiring are in general not to be installed in hazardous areas. However, in spaces and areas listed in 200 to 800 installations may be accepted provided additional requirements as specified are complied with.

102 Instrumentation, monitoring, control and communication are to be intrinsically safe-type equipment.

Guidance note:

In applications where this is technically impracticable, for example, solenoid valves, gas detection sensors, the following types of protection may be considered in place of Category 'ib' apparatus when approved by an Appropriate Authority: pressurised type 'p'; flameproof type 'd'; increased-safety type 'e'.


103 Additional requirements may be given for special cargoes according to Sec.15.

104 The materials used for electrical equipment are not to react dangerously with the cargo liquids or gases to which they may be exposed, and are to be corrosion resistant against such liquids or gases.

B 200 Cargo tanks

The following installations are accepted:

201 Intrinsically safe-type 'ia' and associated wiring.

B 300 Cofferdams and other under deck spaces adjacent to cargo tanks


301 Intrinsically safe,type 'ia' and associated wiring.

302 Electric depth-sounding devices, log devices and impressed current cathodic protection systems (for external hull protection only). Such equipment are to be of gas-tight construction or to be housed in a gas-tight enclosure. The cables are to be installed in steel pipes with gas-tight joints up to the upper deck. Corrosion resistant pipes, providing adequate mechanical protection, are to be used in compartments which may be filled with seawater. (e.g. permanent ballast tanks).

Guidance note: The thickness of the pipes to be as for overflow and sounding pipes through ballast or fuel tanks in accordance with Rule Pt. 4 Ch.I Sec.6 A.

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303 In spaces provided with mechauical ventilation of at least 8 changes of air per hour, the following requirements apply:

- certified safe-type luminaires of pressurised or flameproof type may be installed. The luminaires to be arranged in accordance with Pt.4 Ch.4 Sec. 9 D 104. A signboard to be fitted at each entrance. See C102

- lighting fittings of air driven certified safe-type - general alarm audible and/or optical indicator of certified

safe flameproof type may exceptionally be allowed.

B 400 Cargo pump rooms


401 Intrinsically safe-type 'ia' and associated wiring.

402 Electrical devices as described in 302 above, installed in accordance with that subsection.

403 Certified safe-type luminaires of the pressurised or flameproof type. The installation to be arranged as specified in 303.

404 Lighting fittings of air driven certified safe-type.

405 General alarm audible and/or optical indicator of certified safe flameproof type may exceptionally be allowed.

406 Where it is necessary for cables other than intrinsically safe circuits and those supplying lighting in the pump room to pass through cargo pump room, they are to be installed in steel pipes with gas-tight joints. The thickness of the pipes to be in accordance with Pt.4 Ch. l Sec.6 A.

Guidance note: The term 'cable pipe' is here used to denote nOt only circular pipes, but also other closed ducts of non-circular shape.

--e-n-d--o-f---G-u-i-d-a-n-c-e---n-o-t-e---

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9

B 500 Enclosed or semi-enclosed spaces above cargo tanks The following installations are accepted:

501 For spaces immediately above cargo tanks, for spaces having bulkheads above and in line with cargo tank bulkheads, and compartments for cargo gear, the following requirements apply:

- intrinsically safe-type 'ia' or 'ib' aod associated wiring - certified safe-type luminaires of pressurised or flameproof

type. The installation to be arranged as specified in 303 - through runs of cables.

Guidance note: Spaces having a 'corner-to-comer' connection with the cargo tank, may be exempted from this requirement. The installation will be considered in each case.

---e-n-d--o-f---G-u-i-d-a-n-c-e---n-o-t-e---

502 For spaces above cargo tanks not containing a source of hazard and which are separated from the cargo tanks by cofferdams, having openings in to any hazardous area. the electrical installation is to comply with the requirements for the space or area into which the opening leads.

B 600 Hazardous areas on the open deck


601 Definitions of gas dangerous zones are given in Sec.! B. The following equipment will normally be accepted in these zones on the open deck:

- Certified safe-type equipment as referred to in Pt.4 Ch.4 Sec. 2B ('d', 'e', 'ia', 'ib', 'p'). Such equipment is to be suitably protected for use on open deck. For instrumentation, monitoring, control and communication circuits, see 102.

- Through runs of cables. However, cable expansion bends are not to be fitted within distances from the cargo tank openings as specified in Sec.! B112.

B 700 Other spaces in the cargo area and in enclosed or semi-enclosed spaces with direct access to the cargo area This item covers 'gas-safe' spaces as specified in Sec.1 Bl 13. The following installations are accepted:

701 The same type of equipment as in similar rooms on dry cargo ships are normally accepted (See Pt.4 Ch.4 Sec.2 C Table Cl), but with additional requirements as specified in 702 to 705.

702 Electrical equipment, other than certified safe-type, installed in spaces which have been made non-hazardous areas by the ventilating system, to be automatically disconnected upon loss of overpressure.

703 When shaft glands are installed in bulkheads or decks between hazardous areas and gas-safe spaces (overpressure ventilated), the lightiog fittings and switches in these gassafe spaces are to be of certified safe flameproof type. Other electrical equipment is to be of certified safe-type, or is to be automatically disconnected upon loss of ventilation in the space. A part of the lighting installation may be accepted in a nonflameproof construction if de-energised upon of loss of overpressure.

Guidance note: Above mentioned requirement does not apply to main engine room.



704 If the switch- or fusegear for interlocking systems according to 702 are located in the room concerned, these components are to be of certified Safe flameproof type, or the circuits for this equipment is to be intrinsically safe-type, Category Ex(ia) or Ex(ib).

705 The ventilation of gas-safe spaces in the cargo area is to comply with the requirements in Sec.10. In addition it is required that the 15 minutes prepurging period is to be ensured by automatic interlocking when the gas-safe space is located below the upper deck.

B 800 Tweendeck spaces

801 Certified safe-type luminaires of pressurised or flameproof type.

802 Any electrical equipment, additional to the luminaires referred to in 801, may be installed in tweendeck spaces above cargo tanks provided that:

- the compartment is suitably mechanically ventilated, - the compartment having access solely from a gas-safe

space or zone on the deck above, - the floor of the compartment is separated from the cargo

tanks by a cofferdam or a space as referred to in 501, - the boundaries of the compartment are oil-tight and gas

tight with respect to the cofferdam and the tweendeck space.

C. Signboards

C 100 General

101 Where electric lighting is provided for spaces in hazardous areas, a signboard at least 200 x 300 mm is to be fitted at each entrance to such spaces with text:

BEFORE A LIGHTING FITTING IS OPENED ITS SUPPLY CIRCUIT IS TO BE DISCONNECTED

Alternatively a signboard with the same text cao be fitted at each individual lightiog fittiog.

102 Where electric lighting is provided in spaces where the ventilation must be in operation before the electric power is connected, a signboard at least 200 x 300 mm is to be fitted at each entrance, and with a smaller signboard at the switch for each lighting circuit, with text:

BEFORE THE LIGHTING IS TURNED ON THE VENTILATION MUST BE

IN OPERATION

103 Where socket-outlets are installed in cargo area or adjacent area, a signboard is to be fitted at each socket-outlet with text:

PORTABLE ELECTRICAL EQUIPMENT SUPPLIED BY FLEXIBLE CABLES

IS NOT TO BE USED IN AREAS WHERE THERE IS GAS DANGER

Alternatively signboards of size approximately 600 x 400 mm, with letters of height approximately 30 mm, can be fitted at each end of the tank deck.

104 Where socket-outlets for welding apparatus are installed in areas adjacent cargo area, the socket outlet is ·to be provided with a signboard with text:

WELDING APPARATUS NOT TO BE USED UNLESS THE WORKING SPACE

AND ADJACENT SPACES ARE GAS-FREE.

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SECTION 13 INSTRUMENTATION AND AUTOMATION

A. General Requirements A 100 General

Contents

B. Alarm, Indicating and Recording Systems B 100 Cargo tank level gauging B 200 Overflow control B 300 Vapour detection B 400 Cargo temperature measurement B 500 Hold leakage alarm

A. General Requirements

A 100 General

101 For instrumentation and automation, including computer based control and monitoring, the requirements of in this chapter are additional to those given in Pt.4 Ch.5.

102 Remote reading systems for cargo temperature and pressure are not to allow the cargo or vapour to reach gas safe spaces. Direct pipe connections will not be accepted

103 If the loading and unloading of the ship is performed by means of remotely controlled valves and pumps, all controls and indicators associated. with a given cargo tank are to be concentrated in one control position.

B. Alarm, Indicating and Recording Systems

B 100 Cargo tank level gauging

101 By •gauging device• is meant an arrangement for determining the liquid level of cargo in tanks. Consideration of the hazard and physical properties of each cargo will give the base for selecting one of the following types:

- open, type b1 A method which makes use of an opening in the tank and directly exposes the operator to the cargo or its vapours. Examples of this type are ullage openings and gauge hatches.

- restricted, type b2 A device which penetrates the tank and which, when in use, permits a limited quantity of cargo vapour or liquid to be expelled to the atmosphere. When not in use, the device is completely closed. Examples of this type are rotary tube, fixed tube, slip tube and sounding pipe.

- closed, type b3 A permanently installed device which penetrates the tank, but which is part of a closed system which keeps the cargo containment system completely sealed off from the atmosphere. Examples of this type are sight glasses, pressure cells, float-tape systems, electronic or magnetic probe.

- indirect, type b4

A device which does not penetrate ··the tank shell or is independent of the tank and which makes use of an indirect measurement for determining the amount of cargo. Examples are weighing of cargo, pipe flow meter.

102 Each cargo tank is to be provided with at least one liquid level gauging device. Type of gauging devices required for the individual cargoes are shown in the List of Cargoes.

103 If a closed gauging device is not mounted directly on the tank, it is to be provided with shut"<>ff valves situated as close as possible to the tank.

B 200 Overflow control

201 Arrangements as described below are to be provided according to the List of Cargoes.

202 Type f1. The cargo tank is to be fitted with a visual and audible high level alarm.

This is to be able to be function tested from the outside of the tank and is also to be independent of the level gauging device required in 102 and the high-high level alarm required in 203.

203 Type f2. In addition to the high level alarm as described in 202, a high-high level alarm is to be fitted. The high-high level alarm is to be independent of the high level alarm and the level gauging device.

B 300 Vapour detection

301 Ships carrying toxic and/or flammable cargoes are to be equipped with at least two instruments designed and calibrated for testing for the specific vapours in question. If such instruments are not capable of testing for both toxic concentrations and flammable concentrations, then two separate sets of instruments are to be provided.

302 Vapour detection instruments may be portable or fixed. If a fixed system is installed, at least one portable instrument is to be provided.

303 In the case of portable instruments being used, provisions are to be made to facilitate easy measurements, and where necessary fitting of guide tubes to enable gas sampling hose to be easily lead to the space to be tested.

B 400 Cargo temperature measurement

401 Means for measuring the cargo temperature are to be provided. Tanks intended for carriage of cargoes requiring cargo level gauging systems type b2, b3 or b4, are to be provided with a temperature measuring system providing a gas segregation equivalent to the gauging systems required.

B 500 Hold leakage alarm

501 Hold spaces containing independent cargo tanks are to be provided with alarm for leakage of liquids into the holds.

DET NORSKE VERITAS

Contents

A. General A JOO Application

SECTION 14


TESTS AFfER INSTALLATION

A. General

A 100 Application 101 All systems covered by this chapter are to be tested in operation. As far as practicable, the 'tests are to be performed at the building yard.

102 Remaining function tests, which cannot be carried out without cargo on board, may be carried out in connection with the first cargo loading/transport with a representative cargo.

DET NORSKE VERITAS


SECTION 15 ADDITIONAL REQUIREMENTS FOR CERTAIN CARGOES

A. General Requirements A 100 Application A 200 Materials

Contents

A 300 Segregation of cargo from bunker tanks A 400 Separate piping systems A 500 Cargo contamination A 600 Cargoes with low ignition temperature and wide flamma-

bility range A 700 Inert gas A 800 Moisture control (Drying) A 900 Cargo pumps in tank A 1000 Cargoes not to be exposed to excessive heat A 1100 Cargoes requiring heating A 1200 Cargo pump temperature sensors

B. Additional Requirements for Certain Groups of Cargoes B 100 Acids B 200 Cargoes which have a vapour pressure greater than 1,015

bar at 37 ,8 °C

C. Additional Requirements for Certain Chemicals C 100 Ammonium nitrate solution, 93% or less C 200 Carbon disulphide C 300 Diethyl ether C 400 Hydrogen peroxide solutions of 60% but not over 70% C 500 Hydrogen peroxide solutions over 8% but not over 60% C 600 Phosphorus, yellow or white C 700 Propylene oxide and mixtures of ethylene oxide/ propy

lene oxide with ethylene oxide content of not more than 30% by weight

C 800 Sulphuric acid C 900 Sulphur liquid C 1000 Alkyl (C7 - C9) nitrates


A 100 Application

204 Aluminium, magnesium, zinc, galvanised steel and lithium should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

205 Copper and copper bearing alloys should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

206 Aluminium or copper or alloys of either should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

207 Aluminium, stainless steel or steel covered with a suitable protective lining or coating should be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

208 The following materials of construction should be used:

a) For concentrations of 98 % or greater, aluminium, or stainless steel.

b) For concentrations of less than 98%, special acid-resistant stainless steel.

209 Copper, silver, mercury and magnesium or other acetylides-forming metals and their alloys should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

210 Copper and copper bearing alloys with greater than 1 % copper should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

211 Cargo tanks are to be made from solid stainless steel. 101 The provisions of this section are applicable where specific reference is made in the List of Cargoes. A 300 Segregation of cargo from bunker tanks

The requirements are mainly of constructional nature or of a nature affecting both construction and operation. It is advised that specific operational requirements for some of the products are given in the International Code for the Construction and Equipment of ships carrying Dangerous Chemicals in Bulk. It is assumed that the operational requirements are complied with during operation of the ship.

A 200 Materials

201 Materials of construction for cargo tanks, and associated pipe-lines, valves, fittings and other items of equipment, which are not to be used for certain products, are specified in the List of Cargoes.

202 Copper, copper alloys, zinc, aluminium, galvanised steel and mercury should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

203 Copper, copper alloys, zinc or galvanised steel should not be used as materials of construction for tanks, pipelines, valves, fittings and other items of equipment that may come in contact with cargo liquid or vapour.

301 Cargoes with reference to this item (see List of Cargoes) are not to be carried in tanks adjacent to bunker tanks.

A 400 Separate piping systems

401 Cargoes with reference to this item (see List of Cargoes) are to be carried in tanks with separate piping systems and with vent systems separate from tanks containing other products.

402 Cargo tank relief valve settings are to be a minimum of 0,2 bar.

A 500 Cargo contamination

501 Alkaline or acidic materials, such as caustic soda or sulphuric acid, should not be allowed to contaminate this cargo.

502 Water should not be allowed to contaminate this cargo. In addition the following provisions apply:

- Air inlets to pressure/vacuum relief valves of tanks containing this cargo should be situated at least 2 m above the weather deck.

- Water or steam should not be used as the heat transfer media in a cargo temperature control system.

DET NORSKE VERITAS

- This cargo should not be carried in tanks adjacent to permanent ballast or water tanks unless the tanks are empty and dry.

- This cargo should not be carried in tanks adjacent to slop tanks, cargo tanks containing ballast or slops or other cargoes containing water which may react in a dangerous manner. Pumps, pipes or vent lines serving such tanks should be separate from similar equipment serving tanks containing this cargo. Pipelines from slop tanks or ballast lines should not pass through tanks containing this cargo unless in a tunnel.

A 600 Cargoes with low ignition temperature and wide flammability range

601 The distance of 3 m given in Sec.I B112 is to be increased to 4,5 m.

A 700 Inert gas

701 The cargo tank vapour space and associated piping systems are to be filled and maintained with a gas (inert) which will not support combustion and which will not react with the cargo.

702 An adequate supply of inert gas for use in filling and discharging is to be carried or is to be manufactured on board unless a shore supply is available.

In addition, sufficient inert gas is to be available on the ship to compensate for normal losses during transportation.

703 The inert gas system on board the ship is to be able to maintain at least 0,07 bar pressure within the containment system at all times. In addition, the inert gas system shall not raise the cargo tank pressure to more than the tank's relief valve setting.

704 Means are to be provided for monitoring ullage spaces containing a gas blanket to ensure that the correct atmosphere is being maintained.

705 lnerting arrangements where used with flammable cargoes are to be such as to minimise the creation of static electricity during the admission of the inerting media.

A 800 Moisture control (Drying)

801 The cargo tank vapour space and associated piping systems are to be filled and maintained with a moisture free gas or vapour which will prevent the access of water or water vapour to the cargo. For the purpose of this paragraph, .:moisture free»> gas or vapour is that which has a dewpoint of -40°C or below at atmosplieric pressure.

802 Where dry nitrogen is used as the medium, similar arrangements for supply of the drying medium is to be made as required in 702, 703 and 705 above. Where drying agents are . used as the drying medium on all air inlets to the tank, sufficient media is to be carried for the duration of the voyage taking into consideration the diurnal temperature range and the expected humidity.

A 900 Cargo pmnps in tank

901 Cargo pumps are to be located in the cargo tank or the cargo pump room is to be located on the weather deck level. Special consideration by the Society is required for other locations of the pump room.

Rules for Ships , July 1999 Pt. 5 Ch .4 Sec. 15 - Page 31

A 1000 Cargoes not to be exposed to excessive heat

1001 Because of their sensitive nature such cargoes are not to be carried in uninsulated deck tanks.

A 1100 Cargoes requiring heati_ng

1101 Such cargoes will only be permitted in tanks with heating system. The ship's shell plating is not to be boundary of such tanks.

A 1200 Cargo pmnp temperature sensors

1201 Temperature sensors should be used to monitor the cargo pump temperature to detect overheating due to pump failure

B. Additional Requirements for Certain Groups of Cargoes

B 100 Acids

101 No electrical equipment or other sources of ignition are permitted in enclosed spaces adjacent to cargo tanks.

102 The ship's shell plating is not to form any boundaries of tanks containing mineral _acids.

103 Materials of construction of the tanks are to be approved in each case.

104 Unless constructed completely of corrosion-resistant materials or fitted with an approved lining, the plating thickness is to take into account the-· corrosiveness of the cargo.

105 Flanges of the loading and discharge manifold connections are to be provided with shields which may be portable to guard against the danger· of the cargo heing sprayed. Drip trays are to be provided to guard against leakage on to the deck.

106 Means for detecting leakage of cargo into adjacent spaces are to be provided.

107 Bilge pumping arrangements and drainage arrangements in pump rooms are to be of corrosion resistant materials.

B 200 Cargoes which have a vapour pressur~ greater than 1,015 bar at 37,8°C

201 Unless the tank. is designed to withstand the vapour pressure of the e:argo, provisions are to be made to maintain the temperature of the cargo below its boiling point at atmospheric pressure.

202 Valved connections for returning gas ashore during loading are to be provided.

203 Each tank is to be provided with a pressure gauge indicating the pressure in the vapour space above the cargo.

204 Where the cargo is being cooled, each tank is to be provided with thermometers at the top and bottom of the tank.

C. Additional Requirements for Certain Chemicals

C 100 Ammonimn nitrate solufion, 93 % or less

101 The ammonium nitrate solution should contain at least 7 % by weight of water. The acidity (pH) of the cargo when diluted with ten parts of water to one part of cargo by weight should be between 5,0 and 7,0. The solution should not

DET NORSKE VERITAS


contain more than 10 ppm chloride ions, 10 ppm ferric ions, and should be free of other contaminants.

102 Tanks and equipment for ammonium nitrate solution are to be independent of tanks and equipment containing other cargoes or combnstible products. Equipment which may in service, or when defective, release combustible products into the cargo, e.g. lubricants, should not be used. Tanks should not be used for seawater ballast.

103 The temperature of the heat exchanging medium in the tank heating system is not to exceed 160°C. The heating system is to be provided with a control system to keep the cargo at a bulk mean temperature of 140°C. High-temperature alarms at 145°C and 150°C and a low-temperature alarm at 125°C is to be provided. Where the temperature of the heat exchanging medium exceeds 160°C an alarm should also be given. Temperature alarms and controls are to be located on the navigating bridge.

104 A fixed installation should be provided to inject ammonia gas into the cargo. Controls for this system should be located on the navigating bridge. For this purpose, 300 kg of ammonia per 1000 tonnes of ammonium nitrate solution should be available on board.

105 Cargo pumps should be of the centrifugal deepwell type or of the centrifugal type with water flushed seals.

106 Vent piping should be fitted with approved weatherhoods to prevent clogging. Such weatherhoods should be accessible for inspection and cleaning.

C 200 Carbon disulphide

201 Means are to be provided to maintain a water pad in the cargo tank during loading, unloading and during transit. In addition, means are to be provided to maintain an inert gas pad in the ullage space during transit.

202 All openings are to be in the top of the tank above the deck.

203 Loading lines are to terminate near the bottom of the tank.

204 A standard ullage opening is to be provided for emergency sounding.

205 Cargo piping and vent lines are to be independent of piping and vent lines used for other cargoes.

206 Pumps may be used for discharging cargo provided they are of the deepwell or submersible types. The means of driving a deepwell pump should not present a source of ignition for carbon disulphide and should not employ equipment that may exceed a temperature of 80°C. Submersible pumps should be electrically interlocked so that the motor is de-energised before it could present a source of ignition to the cargo vapour space.

207 If a cargo discharge pump is used, it is to be inserted through a cylindrical well extending from the tank top to a point near the tank bottom. A blanket of water should be formed in this well before attempting pump removal unless the tank has been certified as gas-free.

208 Water or inert gas displacement may be used for discharging cargo provided the cargo system is designed for the expected pressure and temperature.

209 Safety relief valves are to be of stainless steel construction.

210 Because of its low ignition temperature and close clearances required to arrest its flame propagation, carbon disulphide requires special safeguard for electrical equipment which will be considered in each case.

C 300 Diethyl ether

301 Unless inerted, natural ventilation is to be provided for the voids around the cargo tanks '?'hile the vessel is under way. If a mechanical ventilation system is installed, all blowers are to be of non-sparking construction. Mechanical ventilation equipment is not to be located in the void spaces surrounding the cargo tanks.

302 Pressure relief valve settings are not to be less than 0,2 bar.

303 Inert gas displacement may be used for discharging cargo from pressure vessel tanks provided the cargo system is designed for the expected pressure.

304 No electrical equipment except for approved lighting fixtures are to be installed in enclosed spaces adjacent to cargo tanks. Lighting fixtures are to be approved for use in diethyl ether vapours. The installation of electrical equipment on the weather deck is to comply with the requirements of Sec.12.

305 In view of the fire hazard provisions are to be made to avoid any ignition source and/or heat generation in the cargo area.

306 Pumps may be used for discharging cargo provided that they are of a type designed to avoid liquid pressure against the shaft gland or are of a submerged type and are suitable for use with the cargo.

307 Provisions are to be made to maintain the inert gas pad in the cargo tank during loading, unloading and during transit.

C 400 Hydrogen peroxide solutions of 60% but not over 70%

401 Hydrogen peroxide solutions are to be carried in dedicated ships only and no other cargoes are to be carried.

402 Cargo tanks and associated equipment are to be either pure aluminium (99,5%) or solid stainless steel (304L, 316, 316L or 316Ti), and passivated in accordance with approved procedures. Aluminium is not to be used for piping on deck. All nonmetallic materials of construction for the containment system neither to be attacked by hydrogen peroxide nor contribute to its decomposition.

403 Pump rooms are not to be used for cargo transfer operations.

404 Cargo tanks are to be separated by cofferdams from oil fuel tanks or any other space containing flammable or combustible materials.

405 Temperature sensors are to be installed at the top and bottom of the tank. Remote temperature readouts and continuous monitoring shall be located on the navigating bridge. If the temperature in the tanks rises above 35°C, visible and audible alarms are to be activated on the navigating bridge.

406 Fixed oxygen monitors (or gas sampling lines) are to be provided in void spaces adjacent to tanks to detect leakage of the cargo into these spaces. Remote readouts, continuous monitoring (if gas sampling lines are used, intermittent sampling is satisfactory) and visible and audible alarms similar to those for the temperature sensors shall also be located on the navigating bridge. The visible and audible alarms are to be activated if the oxygen monitors shall also be available as back-up systems.

407 As a safeguard against uncontrolled decomposition, a cargo jettisoning system is to be installed to discharge the cargo overboard. The cargo should be jettisoned if the temperature rise of the cargo exceeds a rate of 2°C per hour over a 5-hour period or when temperature in the tank exceeds 40°C.

DET NORSKE VERITAS

408 Cargo tank venting system is to have pressure/ vacuum relief valves for normal controlled venting, and rupture discs or a similar device for emergency venting, should tank pressure rise rapidly as a result of uncontrolled decomposition. Rupture discs shall be sized on the basis of tank design pressure, tank size and anticipated decomposition rate.

409 A fixed water-spray system shall be provided for diluting and washing away any concentrated hydrogen peroxide solution spilled on deck. The areas covered by the water-spray are to include the manifold/hose connections and the tank tops of those tanks designated for carrying hydrogen peroxide solutions. The minimum application rate shall satisfy the following criteria:

- The product shall be diluted from the original concentration to 35 % by weight within 5 min. of the spill.

- The rate and estimated size of the spill shall be based upon maximum anticipated loading and discharge rates, the time required to stop flow of cargo in the event of tank overfill or a piping/hose failure, and the time necessary to begin application of dilution water with actuation at the cargo control location or on the navigating bridge.

C 500 Hydrogen peroxide solutions over 8% but not over 60% ·

501 Only those hydrogen peroxide solutions which have a maximum decomposition rate of 1,0% per year at 25°C are allowed to be carried.

502 The ship's shell plating is not to form any boundaries of tanks containing this product.

The design of cargo tanks is to be such as to provide minimum internal tank structure, free drainage, no entrapment and ease of visual inspection.

503 Cargo tanks and associated equipment should be either pure aluminium (99 ,5 % ) or solid stainless steel of types suitable for use with hydrogen peroxide. Aluminium is not to be used for piping on deck. All non-metallic materials of construction for the containment system are neither to be attacked by hydrogen peroxide nor contribute to its decomposition.

504 Cargo tanks are to be separated by a cofferdam from fuel oil tanks or any other space containing materials incompatible with hydrogen peroxide.

505 Temperature sensors are to be installed at the top and bottom of the tank. Remote temperature readouts and continuous monitoring should be located on the navigating bridge. If the temperature in the tank rises above 35°C, visible and audible alarms are to be activated on the navigating bridge.

506 Fixed oxygen monitors (or gas sampling lines) are to be provided in void spaces adjacent to tanks to detect leakage of the cargo into these spaces. The enhancement of flammability by oxygen enrichment should be recognized. Remote readouts, continuous monitoring (if gas sampling lines are used, intermittent sampling is satisfactory) and visible and audible alarms similar to those for the temperature sensors should also be located on the navigating bridge. The visible and audible alarms should activate if the oxygen concentrations in these void spaces exceed 30 % by volume. Two portable oxygen monitors are also to be available as back-up systems.

507 As a safeguard against uncontrolled decomposition, a cargo jettisoning system is to be installed to discharge the cargo overboard. The cargo should be jettisoned if the temperature rise of the cargo exceeds a rate of 2°C per hour


over a 5-hour period or when the temperature in the tank exceeds 40°C.

508 Cargo tank venting systems with filtration are to have pressure vacuum relief valves foi' normal controlled venting, and a device for emergency venting; should tank pressure rise rapidly as a result of an uncontrolled decomposition rate. These venting systems are to be designed in such a manner that there is no introduction of sea water into the cargo tank even under heavy sea conditions. Emergency venting is to be sized on the basis of tank design pressure and tank size.

509 A fixed water-spray system is to be provided for diluting and washing away any concentrated solution spilled on deck. The areas covered by the water-spray should include the manifold/hose connections and the. tank tops of those tanks designated for the carriage of hydrogen peroxide solutions. The minimum application rate should satisfy the following criteria:

- The product is to be diluted from the original concentration to 35 % by weight within five minutes of the spill.

- The rate and estimated size of the spill should be based upon maximum anticipated loading and discharge rates, the time required to stop flow of cargo in the event of tank overfill or a piping/hose failure, and the time necessary to begin application of dilution water with actuation at the cargo control location or on the navigating bridge.

510 During transfer of hydrogen peroxide the related piping system is to be separate from all other systems. Cargo hoses used for transfer of hydrogen peroxide transfer only.

C 600 Phosphorus, yellow or white

601 The cargo tanks are to be placed inboard from the ship's side at a minimum distance of B/5 measured at the level of the load line.

602 Phosphorus is, at all time, to be loaded, carried and discharged under a water blanket of 760 mm minimum depth. During discharge operations it is to be arranged that water occupies tbe volume of phosphorus discharged.

603 Tanks are to be designed so as to minimize the interfacial area between liquid phosphorus and its water blanket.

604 A minimum ullage space of 1 % is to be maintained above the water blanket and is to be filled with inert gas if phosphorus is carried in the liquid form.

605 All openings are to be at the top of cargo tanks and fittings and joints attached thereto are to be of materials resistant to phosphorus pentoxide.

606 Phosphorus is to be loaded at a temperature not exceeding 60°C.

607 Tank heating arrangements are to be external to tanks and an automatic temperature control system for the cargo is to be fitted in order to ensure that the temperature of the phosphorus does not exceed 60 ° C.

608 A water drench system is to be installed in all void spaces surrounding the tanks.

609 Void spaces, referred to in 608, are to be provided with effective means of mechanical ventilation which is. to be capable of being sealed off quickly in an emergency.

610 Loading and discharge of phosphorus is to be governed by a centrally operated system which, in addition to including high level alarms, is to ensure that no overflow of tanks is possible and that such operations can be stopped quickly in an emergency from either ship or shore.

DET NORSKE VERITAS


611 During cargo transfer, a water hose on deck is to be connected to a water supply and kept flowing throughout the operation so that any spillage of phosphorus may be washed down with water immediately.

612 Ship to shore loading and discharge connections are to be approved by the Society.

C 700 Propylene oxide and mixtures· of ethylene oxide/ propylene oxide with ethylene oxide content of not more than 30% hy weight

701 Propylene oxide transported under the provisions of this section is to be acetylene free.

702 Tanks for the carriage of propylene oxide are to be of steel or stainless steel construction.

703

!) All valves, flanges, fittings and accessory equipment are to be of a type suitable for use with propylene oxide and are to be constructed of steel or stainless steel or other material acceptable to the Society. The chemical composition of all material used should be submitted for approval prior to fabrication. Discs or disc faces, seats and other wearing parts of valves are to be made of stainless steel containing not less than 11 % chromium.

2) Gaskets are to be constructed of materials which do not react with, dissolve in or lower the auto-ignition temperature of these products and which are frre resistant and possess adequate mechanical behaviour. The surface presented to the cargo is to be polytetrafluoroethylene (PTFE) or materials giving a similar degree of safety by their inertness. Spirally-wound stainless steel with a filler of PTFE or similar fluorinated polymer will be accepted.

3) Insulation and packing, if nsed, is to be of a material which does not react with, dissolve in, or lower the auto-ignition temperature of these products.

4) The following materials are generally found unsatisfactory for gaskets, packing and similar uses in containment systems for these products and would require testing before being approved.

- Neoprene or natural rubber if it contacts propylene oxide.

- Asbestos or binders used with asbestos. - Materials containing oxides of magnesium, such as

rrrineral wools.

704 Threaded joints are not permitted in the cargo liquid and vapour lines.

705 Filling and discharge piping are to extend to within I 00 mm of the bottom of the tank or any sump pit.

706

I) The containment system for a tank containing these products is 'to have a valved vapour return connection.

2) The products are to be loaded and discharged in such a manner that venting of the tanks to atmosphere does not occur. If vapour return to shore is used during tank loading, the vapour return system connected to a propylene oxide containment system for these products is to be independent from all other containment systems.

3) During discharging operations, the pressure in the cargo tank must be maintained above 0.07 bar gauge.

707 Tanks carrying these products are to be vented independently of tanks carrying other products. Facilities are to be provided for sampling the tank contents without opening the tank to the atmosphere.

708 The cargo may be discharged only by deepwell pumps, hydraulically operated submerged pumps, or inert gas displacement. Each cargo pump is to be arranged to ensure that the oxide does not heat significantly if the discharge line from the pump is shut off or otherwise blocked.

709 Cargo hoses used for transfer of these products are to be marked:

FOR ALKYLENE OXIDE TRANSFER ONLY

710 Cargo tanks, void spaces and other enclosed spaces, adjacent to an integral gravity cargo tank, shall either contain a compatible cargo or be inerted by injection of a suitable inert gas. Any enclosed space in which an independent cargo tank is located is to be inerted. Such inerted spaces and tanks are to be monitored for propylene oxide and oxygen. The oxygen content of these spaces is to be maintained below 2%.

711 1n no case is air to be allowed to enter the cargo pump or piping system while these products are contained within the system.

712 Prior to disconnecting shore-lines, the pressure in liquid and vapour lines is to be relieved through suitable valves installed at the loading header. Liquid and vapour from these lines are not to be discharged to atmosphere.

713 Propylene oxide may be carried in pressure tanks (a4) or in independent (a3) or in integral (a2) gravity tanks. Ethylene oxide/propylene oxide mixtures are to be carried in independent gravity tanks (a3) or in pressure tanks (a4). Tanks are to be designed for the maximum pressure expected to be encountered during loading, conveying and discharging cargo.

714

!) Cargo tanks with a design pressure less than 0,6 bar gauge and tanks for the carriage of ethylene oxide/ propylene oxide mixtures with a design pressure less than 1,2 bar gauge are to have a cooling system to maintain the propylene oxide below the reference temperature (See Sec. I Bll8).

2) The refrigeration requirement for tanks with a design pressure less than 0,6 bar gauge may be waived by the Society for ships operating in restricted areas or in voyages of restricted duration and account may be taken in such cases of any insulation of the tanks. The area and times of year where and for which such carriage would be permitted will be included in the conditions of carriage in the Appendix to the Classification Certificates.

715

!) Any cooling system shall maintain the liquid temperature below the boiling temperature at the containment pressure. At least two complete cooling plants automatically regulated by variations within the tanks are to be provided. Each cooling plant is to be complete with the necessary auxiliaries for proper operation. The control system is also to be capable of being manually operated. An alarm is to be provided to indicate malfunctioning of the temperature controls. The capacity of each cooling system is to be sufficient to maintain the temperature of the liquid cargo below the reference temperature (see Sec. I B 118) of the system.

2) An alternative arrangement may consist of three cooling plants, any two of which are to be sufficient to maintain the liquid temperatures below the reference temperature.

3) Cooling media which are separated from the products by a single wall only is to be non-reactive with the propylene oxide.

DET NORSKE VERITAS

4) Cooling systems requiring compression of propylene oxide are not to be used.

716 Pressure relief valve settings are not to be less than 0,2 bar gauge, nor greater than 7 ,0 bar gauge for pressure tanks intended for the carriage of propylene oxide and not greater than 5,3 bar for the carriage of propylene oxide/ethylene oxide mixtures.

717

1) The piping system for tanks to be loaded with these products is to be completely separate from piping systems for all other tanks, including empty tanks, and from all cargo compressors. If the piping system for the tanks to be loaded is not independent as defined in Sec.! Bl 16, the required piping separation is to be accomplished by the removal of spool pieces, valves, or other pipe_ sections, and the installation of blank flanges at these locations. The required separation applies to any other possible connections such as common inert gas supply lines.

2) These products may be transported only in accordance with cargo handling plans that have been approved by the Society. Each intended loading arrangement is to be shown on a separate cargo handling plan. Cargo handling plans are to show the entire cargo piping system and the locations for installation of blank flanges needed to meet the above piping separation requirements. A copy of each approved cargo handling plan is to be maintained on board the ship.

Guidance note: When a ship carries propylene oxide or mixtures of ethylene oxide/propylene oxide under IMO's Certificate of Fitness, the Administration or delegated body issuing the Certificate will be required to include a reference to the approved cargo handling plans in the Certificate.


3) Before loading propylene oxide, certification verifying that the required piping separation has been achieved is to be obtained from a representative of the Society and carried on board the ship. Each connection between a blank flange and pipeline flange is to be fitted with a wire and seal by the Society's representative to ensure that inadvertent removal of the blank flange is impossible.

718 The maximum allowable tank filling limits for each cargo tank are to be indicated for each loading temperature which may be applied and for the applicable maximum reference temperature, on a list to be approved by the Society. A copy of the list is to be permanently kept on board by the master.

719 The cargo is to be carried under a suitable protective padding of nitrogen gas. An automatic nitrogen make-up system is to be installed to prevent the tank pressure falling below 0,07 bar gauge in the event of product temperature fall due to ambient conditions or maloperation of refrigeration systems. Sufficient nitrogen is to be available on board to satisfy the demand of the automatic pressure control. Nitrogen of acceptable purity is to be used for padding.

720 The nitrogen system is to be capable of inerting the tank vapour space to an oxygen content of less than 2 per cent prior to loading and maintaining this content during the voyage.

721 A water-spray system is to be provided in the area where loading and unloading operations are conducted. The capacity and arrangement is to be such as to blanket effectively the area surrounding the loading manifold and the exposed deck pipework associated with product handling. The arrangement of piping and nozzles is to be such as to


give a uniform distribution over the entire area protected at a discharge rate of 10 l/m2/min. _Remote manual operation should be arranged such that remote starting of pumps supplying the water spray system and remote operation of any normally closed valves in the system can be carried out from a suitable location outside the cargo area, adjacent to the accommodation spaces and readily accessible and operable in the event of fire in the areas protected. The water-spray system is to be capable of both local and remote manual operation and the arrangement is to ensure that any spilled cargo is washed away. Additionally, a water hose with pressure to the nozzle, when atmospheric temperatures permit, is to be connected ready for immediate use during loading and unloading operations.

722 A remote operational, controlled closing-rate shut-off valve is to be provided at each cargo hose connection used during cargo transfer.

C 800 Sulphuric acid

801 The following sulphuric acids will be accepted for the carriage in unlined mild steel tanks:

- 96% (66° Be) or higher concentrations. - 78 % (60° Be) or higher with or without an inhibitor,

provided the corrosive effect on mild steel at 25'C is not higher than that of 96% (66' Be) commercial sulphuric acid.

- spent sulphuric acid from industrial processes, provided the corrosive effect is not higher than that stated above.

802 Sulphuric acid of other qualities and concentrations than stated in 801, is to be carried in tanks lined or made from suitable acid-resistant materials. These will be subject to special consideration by the Society.

803 Cargo pumps, piping and valves made from nodular cast iron, will be accepted for the following sulphuric acids:

- 65% (51,7° Be) or higher concentrations. - spent sulphuric acid from industrial processes, provided

the corrosive effect' is not higher than that stated above.

804 PN-valves and vent pipes from the cargo tank are to be made of or protected by acid-resistant materials. Vent pipes to unprotected cargo tanks are to extend about 50 mm into the tank.

805 Drip pans are to be provided below pump glands and at shore connections.

806 The bilge piping and pumping system in pump rooms are to be made of or lined with corrosion-resistant material.

C 900 Sulphur liquid

901 Cargo tank ventilation is to be provided to maintain the concentration of H2S below one half of its lower explosive limit throughout the cargo tank vapour space for all conditions of carriage, i.e. below 1,85% by volume.

902 Where mechanical ventilation systems are used for maintaining low gas concentrations in cargo tanks, ventilation failure alarm is to be provided.

903 Ventilation systems are to be designed and arranged to preclude depositing of sulphur within the system.

904 Openings to void spaces adjacent to cargo tanks are to be designed and fitted to prevent the entry of water, sulphur or cargo vapour.

905 Connections are to be provided to enable sampling and analysis of vapour in void spaces.

906 An automatic temperature control system for the cargo is to be fitted in order to ensure that the temperature of the sulphur does not exceed 155'C.

DET NORSKE VERITAS


A high temperature alarm is to be fitted.

C 1000 Alkyl (C7 - C9) nitrates

1001 The carriage temperature on the cargo should be maintained below 100°C to prevent the occurrence of a self-sustained, exothermic decomposition reaction.

1002 The cargo may not be carried in independent pressure vessels permanently affixed to the vessel's deck unless:

I) the tanks are sufficiently insulated from fire, and

2) the vessel has a water deluge system for the tanks such that the cargo temperature ts maintained below 100°C and the temperature rise in the tanks does not exceed l,5°C/hour for a fire of 650°C.

DET NORSKE VERITAS


SECTION 16 INERT GAS PLANTS

Contents

A. General A 100 Application A 200 Documentation

B. Materials, Arrangement and Design B 100 General B 200 Inert gas systems based on other means than combustion

of hydrocarbons B 300 Nitrogen inert gas systems fitted for other purposes

A. General

A 100 Application

101 Chemical tankers of deadweight in excess of 20,000 tons having individual cargo tanks exceeding 3000 m3 or cargo tanks fitted with washing machines with a nozzle capacity exceeding 17 ,5 m3 /h or a total through put per tank of 110 m3 /h are to be fitted with an inert gas system complying with the rules in Ch. 3 Sec.11, if the vessel is intended for carriage of chemicals with flash point less than 60°C.

Guidance note: Chemical tankers when transporting oil with flashpoint less than 60°C are to comply with the inert gas requirements of SOLAS Reg. 11-2/60.


A 200 Documentation

201 Documentation in accordance with Ch.3 Sec.11 is to be submitted for approval.

B. Materials, Arrangement and Design

B 100 General

101 Inert gas systems are to satisfy the requirements of Ch. 3 Sec.11 C602 to the extent these requirements are applicable. Alternative solutions to specific requirements in above rules may be accepted as follows:

I) The water seal required by Ch.3 Sec. I I C602 may be replaced by an alternative arrangement consisting of two automatically operated shut-off valves in series with a venting valve in between (double block and bleed). The following conditions apply:

- The operation of the valve is to be automatically executed. Signals for opening/closing are to be taken from the process directly, e.g. inert gas flow or differential pressure.

- An alarm for faulty operation of the valves is to be provided, e.g. the operational status of "Blower stop" and "Supply valve(s) open" is an alarm condition.

2) A lower capacity of the system than that required by Ch. 3 Sec.11 D!OO may be accepted on the condition that the cargo discharge rate from tanks being protected is restricted to 80 % of the inert gas capacity. An entry to this effect will be made in the "Appendix to the classification certificate".

102 An inert gas system based on production of inert gas by other means than combustion of hydrocarbons may be accepted upon special considerations.

B 200 Inert gas systems based on other means than combustion of hydrocarbons

201 The requirements of 200 are specific for the gas generator system and apply when inert gas is produced by passing compressed air through hollow fibres, semi-permeable membranes or adsorber materials.

202 The system is to be provided with at least two air compressors.

203 The air compressor and the nitrogen generator may be installed in the engine room or in a separate compartment. A separate compartment is to be treated as one of other machinery spaces with respect to fire protection.

204 Where a separate compartment is provided, it is to be positioned outside the cargo area and is to be fitted with an independent mechanical extraction ventilation system, providing 6 air changes per hour. A low oxygen alarm is to be fitted. The compartment is to have no direct access to accommodation spaces, service spaces or control stations.

205 Where fitted, a nitrogen receiver or buffer tank may be installed in a dedicated compartment or in the separate compartment containing the air compressor and the generator, or may be located in the cargo area. Where the nitrogen receiver or buffer tank is installed in an enclosed space, the access is to be arranged only from the open deck and the access door is to open outwards. Permanent ventilation and alarm are to be fitted as required in 204.

206 Nitrogen separating systems that may be destroyed by high temperature in the supply air are to be arranged with an alarm and automatic shutdown of the system upon alarm conditions.

B 300 Nitrogen inert gas systems fitted for other purposes

301 If an inert gas system is fitted for other applications than stated in AlO 1, the requirements in 200 apply. However, only one air compressor is required and a permanent recording of the parameters in Ch. 3 Sec.11 E202 is not mandatory.

302 Where the connections to the hold spaces or to the cargo piping are not permanent, two non-return valves may substitute the non-return devices required in Ch.3 Sec.11 C602 and C603.

(!ACS URF20)

DET NORSKE VERITAS


SECTION 17 PERSONNEL PROTECTION

Contents

A. General Requirements A 100 Protective equipment

B. Safety Equipment B 100 Safety equipment

C. Medical First-aid Equipment C 100 General

D. Decontamination Showers and Eye Washes D 100 General


A 100 Protective equipment

101 For the protection of crew members who are engaged in loading and discharging operations, the ship is to have on board suitable protective equipment consisting of large aprons, special gloves with long sleeves, suitable footwear, coveralls of chemical-resistant material, and tight-fitting goggles or face shields or both. The protective clothing and equipment should cover all skin so that no part of the body is unprotected.

Guidance note: The number of protective clothing is normally to be a minimum of six (6) sets.


102 Work clothes and protective equipment are to be kept in easily accessible places and in special lockers. Snch equipment should not be kept within accommodation spaces, with the exception of new, unused equipment and equipment which has not been used since undergoing a thorough cleaning process. Storage rooms for such equipment may, however. upon special consideration be approved within accommodation spaces if adequately segregated from living spaces such as cabins, passageways, dining rooms, bathrooms, etc.

B. Safety Equipment

B 100 Safety equipment

101 Ships carrying cargoes for which reference to Sec.IS A300 or A400 are listed in the List of Cargoes, are to have on board sufficient, but not less than three complete sets of safety equipment each permitting personnel to enter a gas filled compartment and perform work there for at least 20 min. Such equipment is to be in addition to that required by regulation II-2117 of the SOLAS Convention, as amended.

102 One complete set of safety equipment is to consist of:

I) One selkontained air-breathing apparatus (not using stored oxygen),

2) protective clothing, boots, gloves and tight-fitting goggles,

3) fireproof lifeline with belt resistant to the cargoes carried,

and

4) explosion-proof lamp.

103 For the safety equipment required in 101, all ships are to carry the following, either:

1) one set of fully charged spare air bottles for each breathing apparatus;

2) a special air compressor suitable for the supply of highpressure air of the required purity;

3) a charging manifold capable of dealing with snfficient spare breathing apparatus air bottles for the breathing apparatus; or

4) fully charged spare air bottles with a total free air capacity of at least 6,000 1 for each breathing apparatus on board in excess of the requirements of regulation Il-2117 of the SOLAS Convention, as amended.

104 A cargo pump-room on ships carrying cargoes which are subject to the requirements of Sec. 15 A900 or cargoes for which in the List of Cargoes toxic vapour detection equipment is required, but is not available should have either:

1) a low-pressure line system with hose connections suitable for use with the breathing apparatus required by IOI. This system should provide sufficient high-pressure air capacity to supply, through pressure reduction devices, enough low-pressure air to enable two men to work in a gas-dangerous space for at least 1 h without using the air bottles and breathing apparatus air bottles from a special air compressor suitable for the supply of high-pressure air of the required purity; or

2) an equivalent quantity of spare bottled air in lieu of the low-pressure air line.

105 At least one set of safety equipment as required by 102 should be kept in a suitable clearly marked locker in a readily accessible place near the cargo pump-room. The other sets of safety equipment should also be kept in suitable, clearly marked, easily accessible, place.

106 A stretcher which is suitable for hoisting an injured person up from spaces such as the cargo pump-room is to be placed in a readily accessible location.

107 Ships intended for the carriage of certain cargoes are to be provided with suitable respiratory and eye protection sufficient for every pers6n on board for emergency escape purposes, subject to the following:

I) self-contained breathing apparatus should normally have a duration of service of at least 15 min:

2) emergency escape respiratory protection should not be used for fire-fighting or cargo handling purposes and should be marked to that effect.

Individual cargoes to which the provisions of this paragraph apply are indicated in the List of Cargoes.

DET NORSKE VERITAS

C. Medical First-aid Equipment

C 100 General

101 The ship is to have on board medical first-aid equipment including oxygen resuscitation equipment and antidotes for cargoes carried.

Guidance note: Reference is made to the Medical First Aid Guide for Use in Accidents Involving Dangerous Goods (MFAG) which includes the MFAG numbers of products covered by the Code and the emergency procedures to be applied in the event of an incident. MFAG numbers related to products listed in chapters 17 and 18


of the IBC Code are given in the Index of Dangerous Chemicals Carried in Bulk.

--e-n-d--o-f---G-u-i-d-a-n-c-e---n-o-t-e---

D. Decontamination Showers and Eye Washes

D 100 General

101 Suitably marked decontamination showers and eyewashes are to be available on deck in convenient locations. The showers and eyewashes are to be operable in all ambient conditions.

DEr NORSKE VERITAS

Rules for Ships , July 1999 Page 40 - Pt.5 Ch.4 App.A

APPENDIX A LIST OF CARGOES -TANKER FOR CHEMICALS

Contents

A. General A 100 List of cargoes

Abbreviations:

Ship type (See Sec.3):

D:

Tank type: (See Sec.!)

Cargo tank material:

Gauging system: (See Sec.13)

Tank vent system: (See Sec. 9)

Ventilation system: (See Sec.10)

Overflow control: (See Sec.13)

Cargo stripping efficiency: (See Sec.6)

Fire protection

Vapour hazard

Dash, «-«, indicates nil requirement.

Note:

A. General

A 100 List of cargoes 101 This list is meant to provide a summary of some minimum constructional and operational requirements to the specific cargoes listed. The requirements are defined by the register information and the summary of special requirements.

Ship type 1 Damage stability standard Ship type 2 in accordance with Ship type 3 IMO's International Chemical Code.

Liquid density (kg/m::I), except where a temperature is indicated, the density is given for 20°C.

a1: integral tank type a1 (single skin). a2: integral tank type a2 (double skin). a3: independent tank type a3 (atmospheric). a4: independent tank type a4 (pressure).

ss: identifies tanks made of stainless steel, clad or solid.

b1: open. b2: restricted. b3: closed. b4: indirect.

c1: open venting c2: outlet 4 metres above deck. c3: outlet B/3 above deck.

v2: 30 air changes/hour. v3: 45 air changes/hour.

f1: High level alarm. f2: High-high level alarm.

str0.1: residue quantity not in excess of 0, 1 m3. str 0.3: residue quantity not in excess of 0,3 m3.

A: Alcohol foam deck system. B: Regular foam deck system. C: Water spray. D: Dry chemical.

F: Flammable vapours. T: Toxic vapours.

Attention is drawn to the 9th set of amendments to the IMO Bulk Chemical Code Res. A.212(VII) according to which alcohol foam will be the basic fire fighting medium for all cargoes. Dry chemical powder will not be accepted as an al tentative neither to alcohol foam nor regular foam. This applies to ships which are new ships relative to the amendment.

In this list prefixes are shown either in normal type, with capital letters, where the prefix forms an integral part of the name, (a) below, or in small letters with a hyphen, where the snbstance name is entered without regard to its prefix, (b) below.

Some common prefixes and the manner in which they are used are shown below:

a) MONO DI TRI TETRA PENTA ISO BIS etc.

b) n-, or normal-sec-, or secondary-tert-, or tertiary-o-, or ortho-m-, or meta-p-, or para-neo-, sym-, uns-, trans-, a-P-

or alpha or beta

DET NORSKE VERITAS

0 ~

I ~ ~

Name and chemical formula

ACETIC ACID CH3COOH

ACETIC ANHYDRIDE (CH3CO)z0

ACETONE CY ANOHYDRIN (inhibited) (CH3)2C(OH)CN

ACETONITRILE CH,CN

ACRYLAMIDE SOLUTION (inhibited) (50% or less) CH0 CHCONH0

ACRYLIC ACID (inhibited) CH0 CHCOOH

ACRYLONITRILE (inhibited) CH2CHCN

ADIPONITRILE CN(CHol,CN

ALACHLOR TECHNICAL (90% or more)

ALCOHOL (C)r - C+JisPOLY (1 - 6) ETHO YLA

ALCOHOL (CQ)c- c1f POLY (7 - 19) ETH YLA ES

ALCOHOL (C - C ) POLY(20+)ETHoxllLATES

ALCOHOL (Ct - C17) (secondary) PO Y (3 - 6) ETHOXYLATES

ALCOHOL (Ct - C17) (secondary) PO Y (7 - 12) ETHOXYLATES

ALKANE (CL4r- C17) SULFONIC ACID, SODIUM SA 60-65% IN WATER

ALKANES (C, - Co)

ALKARYL POLYETHERS (Cg - C20)

Ship type

3

2

2

2

2

3

2

3

3

2

3

3

2

3

3

3

3

D Tank Gauging Tank type system vent

system

1050 a1 b2 c2

1080 a2 b2 c2

930 a2 b3 c3

780 a2 b2 c3

1048 a2 b3 c2

1060 a1 b2 c2

810 a2 b3 c3

950 a1 b2 c2

1130 a2 b1 c1

900 a2 b1 c1

about a1 b1 c1 900

a1 b1 c1

about a2 b1 c1 950

about a1 b1 c1 1000

a1 b2 c2

a1 b3 c2 a1 b1 c1

Venti- Over- Cargo Electrical equipment lation flow stripping Class Group system control

v2 11 Tl II A

v2 11 T2 II A

v3 12 Tl II A

v3 11 T2 II A

v2 11

v2 11 T2 II A

v3 12 str 0.1 Tl II 8

v2 II 8

v2 11 str 0.1

v2 11

v2 11 str 0.1

v2 str 0.3

v2 11

v2 11 str 0.1

v2 str 0.1

v2 11 str 0.3 v2 11 str 0.1

Fire Vapour protec- hazard

tion

A F

A F T

A T

A F T

No

A F T

A F T

A T

A c A

A

A

A

A

No

A F

A 8

..

Remarks Special requiremen!s

Sec.7 A107 Sec.15 A207 A300 8103-107 Sec.17 8107

Sec.15 A207 A300 8103-107 Sec.17 8107

Stabilized during transport Sec.15 A207 A300 A400 A900 AlOOO Sec.17 8107

Sec.15 A300 A400 Sec.17 8107

Sec.15 A300 A400 A501

Sec.15 A207

Sec.15 A204 A300 A400

Sec.15 A207 AllOO

'

;I' ::c 01 c: nm ::r"' ~O' )> ~

" Cf) " ::r . -c· )>"'

I ;__ -uS. "'-< "' ~ " "' "'"' ~w

0 !:J

I ~


ALKYL ACRYLATE VINYL PYRIDINE COPOLYMER IN TOLUENE

ALKYL BENZENE/-INDANE/-INDENE MIXTURE (C12 - C17) TOTAL CARBON

ALKYL (C3 - C4) BENZENES

ALKYL (C, - C,) BENZENES

ALKYL BENZENE SULPHONIC ACID I

ALKYL BENZENE SULPHONIC ACID. SODIUM SALT SOLUTION

ALKYL (C7 - C9) NITRATES

ALLYL ALCOHOL CH,CHCH?OH .

ALLYL CHLORIDE CH? CH CH? Cl

ALUMINIUM CHLORIDE (30% or less)/ HYDROCHLORIC ACID (20% or less) SOLUTION

2- (2-AMINOETHOXY) ETHANOL NH,CH,CH,OCH,CH,OH

AMINOETHYL ETHANOLAMINE

N-AMINOETHYLPIPERAZINE C,H"N' 2-AMIN0-2-METHYL-1-PROPANOL (90% or less)

AMMONIA (aqueous solution 28% or less) NH,

AMMONIUM NITRATE SOLUTION (93% or less)

AMMONIUM SULPHIDE SOLUTION (45% or less) (NH<iJ2SiH20

AMMONIUM THIOCYANATE (25% or less) /AMMONIUM THIOSULPHATE (20% or less) SOLUTION

Ship type

3

2

.3

2

3

3

2

2

2

3

3

3

3

3

3

2

2

3


system

900 al b2 c2

about a2 bl c2 900

860 al b2 c2 a2 bl cl

IOOO al bl cl 1400

about al bl cl IOOO

a2 bl cl

850 a2 b3 c3

940 a2 b3 c3

1170 a3 b2 c2 to 1240

I057 al bl cl

I030 al bl cl 985 al b2 c2

950 al bl cl

900 al b2 c2

1600 a3 bl cl

993 a2 b3 c3

1100 al bl c2 to

1200


v2 11 sir 0.3

v2 11

v2 11 v2 11 v2 sir 0.3

v2 sir 0.3

v2 11 sir 0.1

v3 12 sir 0.1 T2 II B

v3 12 sir 0.1 T2 II A

v2

v2 11

v2 T2 II A

v2 11

v2

v2 sir 0.3

v2 11

v3 12 sir 0.1

v2 sir 0.3


ti on

A p

A

A p

A

B

No

A B

A p T

A p T

No

A D

A

A

A

c T

No

A p T

No

"

Remarks Special requirements

Sec.15 ClOOO

Sec.15 A300 A400 Sec.17 BI07

Sec.15 A300 A400 Sec.17 BIO?

Sec.15 BIOO Sec.17 BIO?

Sec.15 A203

Sec.15 A202

Sec.15 A202

Sec.15 A202

Sec.15 A205 A210 Sec.17 B207

Sec.15 A211 A300 A900 B105 ClOO

Sec.15 A202 . A300 A400 B202 . Sec.17 BIO?

-0,, "'~ "' " " "' .,,._ "'" I~ ~~ a,· nE-::r·< ... ~ ~"'

"C "' "C "' =i,.

Name and chemical formula Ship D Tank Gauging Tank type type system vent

system

AMMONIUM THIOSULPHATE 3 about a1 b1 cl SOLUTION (60% or Jess) 1500

AMYL ACETATE (all isomers) 3 880 a1 b2 c2 ANILINE 2 1020 a2 b3 c3 C,H,NH,

AVIATION ALKYLATES 3 700 a1 b2 c2 (C8 paraffins and iso-paraffins BPT 95 -120°C) .

BENZENE (incl. solutions with more 3 880 a1 b3 c3 than 10%) C6H6 BENZENE SULPHONYL CHLORIDE 3 1378 a1 b2 c2 c,H,so,c1

BENZYL ACETATE 3 1060 a1 b1 c1 cH,co,cH,c,H,

BENZYL ALCOHOL 3 1040 a1 b1 c1

~ BENZYL CHLORIDE (inhibited) 2 1010 a2 b3 c3 C6 H,CH,Cl

I BUTENE OLIGOMER 3 about al b1 cl 730

BUTYL ACETATE (all isomers) 3 880 a1 b2 c2

' n-BUTYL ACRYLATE (inhibited) 2 890 a2 b2 c2 (all isomers) CH1CHCOO(CH,hCH,

BUTYLAMINE (all isomers) 2 723 a2 b2 c3

BUTYLBENZENE (all isomers) 3 about a1 b2 c2 850

BUTYL BENZYL PHTHALATE 2 1120 a2 b1 c1 BUTYL BUTYRATE (all isomers) 3 870 a1 b2 c2 BUTYL/DECYL/CETYL/EICOSYL 3 <1000 a1 b2 c2 METHACRYLATE MIXTURE (inhibited)

1,2-BUTYLENE OXIDE 3 831 a2 b2 c3 HzCOCHCHzCH3

n-BUTYL ETHER 3 770 a1 b2 c3 CH,(CH,hO(CH,hCH,

BUTYL METHACRYLATE (inhibited) 3 890 al b2 c2 CH,C(CH,)COOC4Ha


v2 str 0.3

v2 11 str 0.3 v3 f2 str 0.3 Tl II A

v2 f1 str 0.3 Tl II A

v3 11 str 0.3 Tl II A

v2 11

v2 str 0,3

v2 str 0.3 v3 12 str 0.1 Tl II A

v2 fl str 0.1

v2 11 str 0.3 v2 11 str 0.1 T2 II B

v3 f1 str 0.3

v2 11

v2 f1 v2 fl str 0,3 v2

v3 11 str 0.3 T2 IIB

v2 str 0.3 T4 II B

v2 11 II A


ti on No

A F A T

B F

A F B T

A T D

A

A

B T

A

A F A F

T

A F T

A

A

A F

A D

A F c

A F T

A F D T

..


Sec.15 A300 A400

Sec.7 A107

Sec.15 A202

Sec.15 A300 A400 Sec.17 B107

Sec.15 A202 A203 A300 A400

Sec.15 A700 C701 C702 C704 C705 C708-C711 C713 C717 C719 C721

Sec.15 A300 A400 A700

~ :Jl "'c: n ro :;r"'

~O' )> ~ ""en "O :;r . -a· )>"'

I '.,, s. '"< "' ~ " "' "'"' Wto

~

I I

Name and chemical fonnula

n-BUTYL PROPIONATE

BUTYRALDEHYDE (all isomers) CH,(CH?)?CHO

BUTYRIC ACID CH3(CHz)2COOH

CALCIUM ALKYL (C~) PHENOL SULPHIDE/ OLYOLEFIN PHOSPHOROSULPHIDE MIXTURE

CALCIUM HYPOCHLORITE SOLUTION (15% or less)

CALCIUM HYPOCHLORITE SOLUTION (more than 15%)

CALCIUM LONG CHAIN ALKYL SALICYLATE (C" +)

CAMPHOR OIL

CARBOLIC OIL

CARBON DISULPHIDE CS2

CARBON TETRACHLORIDE CCl4

CASHEW NUT SHELL OIL (untreated)

CAUSTIC SODA (solution) (sodium hydroxide solution) NaOH

CETYL/EICOSYL METHACRYLATE MIXTURE (inhibited) Ct<, C1 • and C,o

CHLORINATED PARAFFINS (C10 - C6n)

CHLOROACETIC ACID (80% or less) CHzC!COOH

CHLOROBENZENE C,H,Cl

CHLOROFORM CH Cl,

CHLOROHYDRINS (crude)

Ship type

3

3

3

2

3

3

3

2

2

2

3

3

3

3

1

2

3

3

2


system

880 a1 b2 c2 820 a1 b1 c2

958 a1 b2 c2

960 a2 b1 c1

1140 a1 b2 c2

1140 a1 b2 c2

990 a1 b1 c1

920 a2 b2 c2 about a2 b3 c3 1100

1260 a3 b3 c3

1590 a1 b3 c3

950 a1 b2 c2

max. a1 b1 c1 1540

860 a1 b1 c1

about a2 b1 c1 1100

1330 a2 b3 c2

1110 a1 b2 c2

1480 a1 b2 c3

1200 a2 b3 c3 . ·


v2 11 str 0.3 v2 11 str 0.3 T3 II A

v2

v2 11

v2 str 0.3

v2 11 str 0.1

v2 sir 0.3

v2 11 str 0.1 II A

v2 12

v2 12 str 0.1 T6 II C

v3 11 str o: 1

v2

v2

v2

v2 12

v2 12 str 0.3


v2 11 str 0.1

v2 12 II A .


tion

A

A F T

A

A B

No.

No

A B

B F

A F T

c F T

No T

A T B

No

A D

A

No

B F T

T

A F T

'


Sec.15 A501

Sec.15 A207 A300 BlO! B!03 B!04 B!05 B!06 B107

Sec.15 A206 A501

Sec.15 A206 A50!

Sec.7 A107 Sec.15 A300 A400

Sec.15 A300 A400 A700 C200 Sec.17 B107

Sec.15 A300 A400 Sec.17 B107

Sec.15 A202 (copper, brass and bronze may be used)

Sec.15 A300 A400 B193 B105 B106 B107

Sec.15 A300 A400

Sec.15 A300 A400

,, "' "' c: <g ~ ,,._ "'< I g! "'Du· ~"' ;,,-(') c... ::>"~ ·< ,,. ->CD

"<>CD "<>CD ~

ti gi

I

'

Name and chemical formula Ship type

4-CHLOR0-2-METHYLPHENOXY ACETIC 3 ACID, DIMETHYLAMINE SALT SOLUTION

o-CHLORONITROBENZENE 2 c.H,CINO,

2- or 3- CHLOROPROPIONIC ACID 3

CHLOROSULPHONIC ACID I ClS020H

m-CHLOROTOLUENE 3 CH,C.H4Cl

o-CHLOROTOLUENE 3

p-CHLOROTOLUENE 2

CHLOROTOLUENES (mixed isomers) 2

COAL TAR 2

COAL TAR NAPHTHA 3 SOLVENT

COAL TAR PITCH (molten) 3

COBALT NAPHTHENATE 2 IN SOLVENT NAPHTHA

COCONUT OIL FATTY ACID 3

CREOSOTE (coal tar) 2

CREOSOTE (wood) 2

CRESOLS (all isomen;) 2 CH,C,H40H

CRESYLIC ACID, DEPHENOLIZED 2

CRESYLIC ACID, 2 SODIUM SALT SOLUTION

CROTONALDEHYDE 2 CH3CHCHCHO

1,5,9-CYCLODODECATRIENE 1 (inhibited)


system

above a1 b1 c1 1000

1400 a2 b3 c3

1400 a1 b1 c1

1770 a2 b3 c3

1065 a1 b2 c2 1078

1065 a1 b2 c2 1078

1065 a2 b2 c2 1078

1078 a2 b2 c2

1100 a2 b2 c2 to

1300

830 a1 b2 c2 860

1200 a3 b2 c2

a2 b2 c2

900 a1 b1 c1 1070 a2 b1 c1

1100 a2 b1 c1

1040 a2 b1 c1

1040 a2 b2 c1

1000 a2 b1 c1 to

1400

850 a2 b2 c3

890 a2 b2 c2

Venti- Over- Cargo Electrical equipment lation flow stripping Class Group

system control

v2 str 0.3

v3 f2 str 0. 1

v2 str 0.3

v2 f2 str 0.3

v2 f1 str 0. 1

v2 f1

v2 f1 str 0. 1

v2 f1

v2 f1 T2 IIA

v2 f1 str 0. 1 T3 II A

v2 f1 T2 II A

v2

v2 str 0.3 v2 f1 T2 II A

v2 f1 T2 II A

v2 f1 Tl II A

v2 f1

v2

v3 f1 T3 II B

v2 f2


ti on

B T D

A

No T

A F B T

A p B T

A F B T

A F B T

B D

A F D T

B D

A

A D

A D

A B

A B

No

A p T

A

'


Sec.15 A202

Sec.15 A300 A400 A900 A1100

Sec.15 A207 A300 B103-107

Sec.15 A300 A400 A502 BlOO

Sec.15 A202

Sec.15 A300 A400 A501 Sec.17 BIO?

Sec.15 A203

;'I ::0 rnc n<D ::r'" :r:..o-~ ~

"en " ::r . -a· ~'" I :_ ..,s. .,< '° ~ ro "' ,. "' "' "'

tJ gi z

~

I


CYCLOHEPTANE C7H,.

CYCLOHEXANE

CYCLOHEXANONE C,HrnO

CYCLOHEXANONE, CYCLOHEXANOL MIXTURE

CYCLOHEXYL ACETATE

CYCLOHEXYLAMINE C,H,,N

1,3-CYCLOPENT ADIENE DIMER (molten)

CYCLOPENTANE

CYCLOPENTENE .

p-CYMENE

DECANOIC ACID

DECENE

DECYL ACETATE .

DECYL ACRYLATE (inhibited) CH3(CHi)gOCOCH:CH2

DECYL ALCOHOL (all isomers)

DECYLOXYTETRAHYDRO-THIOPHENE DIOXIDE

DIBUTYLAMINE (C4H9)2NH

DIBUTYL HYDROGEN PHOSPHONATE

DIBUTYL PHTHALATE

DICHLOROBENZENE (all isomers) CH6H4ct2

1,1-DICHLOROETHANE CH,CHC17 DICHLOROETHYL ETHER ClCH7CH70CH7CH7CI

1,6-DICHLOROHEXANE

2,2'-DICHLOROISOPROPYL ETHER [ClCH2C(CH3)H]zO

Ship D TatJ.k Gauging type type system

3 809 a1 b2

3 780 a1 b2 3 9SO a1 b2

3 9SO a1 b2

3 970 a1 b2 3 819 a1 b2

2 980 a2 b2

3 740 a1 b2 3 7SO a1 b2 3 860 a1 b2 3 886 a1 b1 3 740 a1 b2 3 870 a1 b1 2 900 a2 b1

3 830 a1 b1 2 1030 a2 b2

3 760 a1 b2

3 980 a1 b1 ·.

2 lOSO a2 b1 2 130S a2 b2

3 1170 a1 b2

2 1220 a2 b2

2 1070 a2 b2

2 1128 a2 b2

Tank Venti- Over- Cargo Electrical equipment vent lation flow stripping Class Group

system system control

c2 v2 11 str 0.3

c2 v2 f1 str 0.3 c2 v2 f1 T2 II A

c2 v2

c2 v2 11 str 0.1 c2 v2 11 str 0.3 T3 II A

c2 v2 11 str 0.1

c2 v2 11 str 0.3 c2 v2 11 str 0.1 c2 v2 11 str 0.3 c1 v2 str 0.3 c2 v2 f1 str 0.1 c1 v2 11 str 0.1 c1 v2 11 T3 II A

c1 v2 f1 str 0.1 c2 v2 11 str 0.3

c2 v2 11 str 0.3 T2 II A

c1 v2 11 str 0.1

c1 v2 11 c2 v2 11 str 0.1 Tl II A

c2 v2 11 T2 II A

c2 v2 f1 str 0.1 T2 II A

c2 v2 11 str 0.1

c3 v3 12 str 0.3


ti on

A F

A F

A F T

A F T

A F

A F c T

A F

A F

A F

A F

A

A F

A

A c D

A

A T

A F c T D

A

A

A T B D

A F T

A F T

A T B

'A T c D

..


Sec.IS A206

Sec.IS A206

Sec.IS A202

Sec. IS Al 100

Sec.IS A203

Sec.IS A20S

Sec.IS A206

Sec.17 BIO?

Sec.IS A206

Sec. lS A206 A300 A400

.,, JJ "' c ~~ ,,,_ mg I g? ;:;i~· ;,,-n '::;~ ·< "'~ :l> lO 'O lO 'O lO )>

ti !!l

I I


DICHLOROMETHANE

2,4-DICHLOROPHENOL C,H,ChOH

2,4-DICHLOROPHENOXYACETIC ACID, DIETHANOLAMINE SALT SOLUTION CH,CHC,H4CH,

2,4-DICHLOROPHENOXYACETIC ACID, DIMETHYLAMINE SALT SOLUTION (70% or less)

2,4-DICHLOROPHENOXYACETIC ACID, TRJISOPROPANOLAMINE SALT SOLUTION c, ,H,.,O,NCh

1,1-DICHLOROPROPANE

1,2-DICHLOROPROPANE CH,CHCICH,

1,3-DICHLOROPROPANE

1,3-DICHLOROPROPENE CHC!CHCH2Cl

DICHLOROPROPENE/ DICHLOROPROPANE MIXTURES

2,2-DICHLOROPROPIONIC ACID CH3CC12COOH

DIETHANOLAMINE (HOCH,CH,),NH

DIETHYLAMINE (C2H5)2NH

DIETHYLAMINOETHANOL

2,6-DIETHYLANILINE

DIETHYLBENZENE

DIETHYLENE TRIAMINE NH,CH7CH7NHCH7 CH,NH,

Ship type

3

2

3

3

3

2

2

2

2

2

3

3

3

3

3

3

3


system

1340 a1 b2 c2 1382 a2 b2 c2

1280 a1 b1 c1

1200 a1 b1 c1

1230 a1 b1 c1

1320 a2 b2 c3

1160 a2 b2 c3

1160 a2 b2 c3

1230 a2 b3 c3

1200 a2 b3 c3

1389 a1 b2 c2

1100 a1 b1 c1

710 a1 b2 c3

880 a1 b2 c2

960 a2 b1 c1

870 a1 b2 c2 950 a1 b1 c1


v2 v2 f1

v2 11

v2 f1

v2 11

v2 11 str 0.3

v2 f1 str 0.3 Tl II A

v2 11 Tl II A

v3 12 str 0.1 T2 II A

v3 12 str 0.1 T2 II A

v2

v2 Tl II A

v2 11 str 0.3 T2 II A

v2 11 str 0.3 T2 II A

v2 11 str 0.3

v2 11 v2 T2 II A


tion

No T

A T

No

No

No

A F B T

A F B T

A F B T

A F B T

A F B T D

A

A

A F T

A F c T

B c D

A F

A

'

Remarb Special requirements

Sec.15 A202 A800

Sec.15 A202

Sec.15 A202

Sec.15 A202

Sec.15 A300 A400

Sec.15 A300 A400

Sec.15 A300 A400

Sec.15 A300 A400 A900 Sec.17 B107

Sec.15 A300 A400 A900 Sec.17 B107

Sec.15 A207 (aluminium not permitted) A301 A800 B103 B105 B106 B107

Sec.15 A203

Sec.15 A202 A300 A400 Sec.17 B107

Sec.15 A202

Sec.15 A205

Sec.15 A203

~ JJ me n<> =r V>

~O' >~ "Oen 'O =r . -a· > .. I ;_ .,,s. .,-< "' ~ "' "' ,,. "' .... "'

~ z

s < !a ~


DIETHYL ETHER CzHsOCzH5

DI- (2-ETHYLHEXYL) PHOSPHORIC ACID [C4H0 CH(C?H,)CH?J,HP04

DIETHYL PHTHALA TE

DIETHYL SULPHATE (C?H,)?S04

DIGL YCIDYL ETHER OF BISPHENOL A

DIGLYCIDYL ETHER OF BISPHENOL F

DI-n-HEXYL ADIPATE

DIISOBUTYLAMINE [(CH3)2CHCH2J2NH

DIISOBUTYLENE

DIISOBUTYL PHTHALATE

DIISOPROPANOLAMINE (CH1 CH(OH)CH7),NH

DllSOPROPYLAMINE ((CH3)zCH)zNH

.

DIISOPROPYLBENZENE (all isomers) N ,N-DIMETHYLACETAMIDE SOLUTION (40% or less) DIMETHYL ADIPATE

DIMETHYLAMINE SOLUTION (4S% or less) (CH1)?NH

DIMETHYLAMINE SOLUTION (greater than 45% but not greater than 55%) ( CH1),NH/H?O

DIMETHYLAMINE SOLUTION (greater than 55 % but not greater than 65 % )

N ,N-DIMETHYLCYCLOHEXYLAMINE (CH1J?NC6H',

DIMETHYLETHANOLAMINE (CH1)?NCH?CH?OH

Ship type

2

3

3

2

3

3

3

2

3

3

3

2

2

3

3

3

2

2

2

3


system

710 a3 b3 c2

973 a1 b1 c1

1120 a1 b1 c1 1172 a2 b3 c2

1160 a1 b1 c1

1200 a1 b1 c1

939 a1 b1 c1 74S a2 b2 c2

720 a1 b2 c2 1040 a1 b1 c1 990 a1 b1 c1

720 a2 b3 c3

860 a2 b1 c1 about a1 b2 c3 IOOO

I070 a1 b1 c1 700 a1 b2 c3

800 a2 b3 c3

800 a2 b3 c3

8SO a2 b2 c3

868 a1 b2 c2


v2 f2 T4 II B

v2 str 0.3

v2 str 0.3 v2 f1 str 0.1

v2 f1 str 0.1

v2 f1 str 0.1

v2 f1 str 0.1 v2 f1 str 0.3

v2 f1 str 0.1 v2 f1 str 0.1 v2 str 0.3 T2 ll A

v2 f2 str 0.3 T2 ll A

v2 f1

v3

v2 f1 str 0.1 v2 f1 str 0.3 T2 II A

v3 f2 str 0.3

v3 12 str 0.3

v3 f1 str 0.3

v2 f1 T3 II A


tion

A F T

B D

A

A

A

A

A

A F c T D

A F

A

A

A F T

A

B T

A

A F c T D

A F c T D

A F c T D

A F c T

A F D T

~-.


Sec.IS A210 A400 A700 B200 C300 Sec.17 BIO?

Sec.IS A203

Sec.IS A204

Sec.IS A202 A300 A400

Sec.IS A203

Sec.IS A203 A300 A400 Sec.17 BIO?

Sec.IS A20S



Sec. IS A202 . A300 A4po B200 Sec.17 BIO?

Sec.IS A202 A300 A400

Sec.IS A203

,, JJ "'c ~[ ,,._ OOQ

I g! ~~· o,-n ':rS. ·< ""~ l>w u"' u"' )>

0 gi

I ,


DIMETIIYLFORMAMIDE (CH1),NCHO

DIMETIIYL GLUTURATE

DIMETIIYL HYDROGEN PHOSPHITE (CH10)0 P(O)H

DIMETIIYL OCTANOIC ACID

DIMETIIYL PHTHALATE

DIMETIIYL SUCCINATE

DINITROTOLUENE (molten)

1,4 DIOXANE c,H.o,

DIPENTENE

DIPHENYL

DIPHENYLAMINE, REACTION PRODUCT WITII 2,2,4-TRIMETIIYLPENTENE

DIPHENYLAMINES, ALKYLATED

DIPHENYL/ DIPHENYL ETIIER MIXTURES

DIPHENYL ETIIER

DIPHENYL ETIIER/DIPHENYL PHENYL ETIIER MIXTURE

DIPHENYLMETHANE DIISOCYANATE CH1(C<H4 NCO),

DIPHENYLOL PROPANE -EPICHLOROHYDRIN RESIN

DI-n-PROPYLAMINE (C.H7 )?NH

DODECENE (all isomers)

DODECYL ALCOHOL

DODECYLAMINE/ TETRADECYLAMINE MIXTURE

DODECYLDIMETHYLAMINE/ TETRADECYLAMINE MIXTURE

Ship type

3

3

3

3

3

3

2

2

3

I

I

2

I

3

3

2

3

3

3

3

2

2

D Tank Gauging type system

9SO a1 b2

1070 a1 b1 1200 a1 b2

902 a1 b1

1190 a1 b1 1120 a1 b1 1300 a2 b3

1040 a2 b3

8SO a1 b2 1040 a2 b1 980 a2 b1

about a2 b1 1000

1060 a2 b1

1070 a1 b1 1030 a1 b1

to 1200

1230 a2 b3

about a1 b1 1000

741 a1 b2

760 a1 b1 830 a1 b1

about a2 b2 800

about a2 b1 800

Tank Venti- Over- Cargo vent lation flow stripping


c2 v2 f1

c2 v2 str 0.3 c3 v2 str 0.1

c1 v2 str 0.3

c1 v2 str 0.3 c1 v2 str 0.3 c3 v3 12

c3 v2 12

c2 v2 11 str 0.3 c1 v2 12 c1 v2 12

c1 v2 f1

c1 v2 12

.

c1 v2 f1

c1 v2 11

c3 v3 f1 str 0.1

c1 v2 f1 str 0.1

c2 v2 11 str 0.3

c1 v2 f1 str 0.1 c1 v2 11 str 0.1 c2 v2 11

c1 v2 f1

Electrical equipment Fire Class Group protec-

tion

T2 II A A D

A

A D

A

A

A

A

T2 II B A

A

B

A

A

B

A

A

** A c B D D

A

A

A

A

A ·D

"

Vapour Remarks hazard Special requirements

F T

T

T Sec.IS A300 A400 AllOO Al200

F Sec.7 A107 T Sec. IS A300 A400

F

T Sec.IS A206 A300 A400 A800 AllOO

F Sec. IS A203 . T A300 A4po

Sec.IS AllOO

Sec.IS A203

Sec.IS A20S

;'? ;JJ Ole nro :y<n

~O' )> ~

" (/) " :J" ~~-

I :._ .,, s. "'< "' ~ " "' "' "' "'"'

~

I ~


DODECYL D!PHENYL ETHERDISULPHONATE SOLUTION

DODECYL METHACRYLATE (inhibited) CH?:C(CH,)COO(CH?),, CH,

DODECYL/PENTADECYL METHACRYLATE MIXTURE (inhibited) CH,= C(CH,)COOC ,,_, ;

DODECYL PHENOL

DRILLING BRINES, CONTAINING ZINK SALTS

EPICHLOROHYDRIN C,H,OCI

ETHANOLAM!NE

2-ETHOXYETHYL ACETATE

ETHYL ACRYLATE (inhibited) CH2CHCOOC7H;

ETHYLAMINE

ETHYLAMINE SOLUTIONS (72 % or less)

ETHYL AMYL KETONE

ETHYLBENZENE

N-ETHYLBUTYLAMINE C,H,NHCH?CH,CH?CH,

ETHYL BUTYRATE

ETHYLCYCLOHEXANE

N-ETHYLCYCLOHEXYLAM!NE c.H17N

ETHYLENE CHLOROHYDRIN CH1ClCH10H

ETHYLENE CY ANOHYDRIN HOCH?CH?CN

ETYLENEDIAM!NE NH?CH?CH?NH?

Ship type

2

3

3

I

3

2

3 .

3

2

2

2

3

3

3

3

3

3

2

3

2


system

1160 a2 bl cl

870 al bl cl

860 al bl c1

940 a2 bl cl about al bl cl 2000

1180 a2 b3 c3 .

1020 al bl cl

970 al b2 c2 930 a2 b2 c2

710 a3 b3 c3

810 a2 b3 c3

822 al b2 c2 870 al b2 c2 740 al b2 c2

880 al b2 c2 787 al b2 c2 84S al b2 c2

1210 a2 b3 c3

1040 al bl cl

910 a2 b2 c2


v2 11

v2

v2

v2 12 v2 11 str 0.1

. ·'

v3 12 II B

v2 T2 II A

v2 11 str 0.3 v2 11 T2 IIB

.

v2 str 0.3 T2 II A

v3 12 str 0.3

v2 11 str 0.3 v2 11 str 0.1 v2 11 str 0.3

v2 11 str 0.3 v2 11 str 0.3 v2 11

v3 12 str 0.3 T2 II A

' v2 II B

v2 str 0.3 T2 II A


tion

No

A

A D

A

No

A F T

A F T

A F A F

T

c F D T

A F c T

A F A F

A F T

A F

A F A F c T

A F D T

A

A F T

..

Remarks Special_ requirements

Sec. lS AllOO

Sec. IS A300 A400 Sec.17 B107

Sec.lS A203

Sec.ls A203 A300 A400 B200 Sec.17 B107

Sec.lS A202 A300 A400 B200 Sec.17 B107

Sec.ls A202 A300 A400

Sec. lS A202

Sec. IS A300 A400 Sec.17 B\07

Sec.7 A107 Sec.lS A203

""' "' c: ~~ "'-OQ I g? "1Ju· ~"'

"' n '-:::r S . -< ""~ >"'

"O "' "O "' ~

Cl gi

I ~


ETHYLENE DIBROMIDE CHzBrCHzBr

.

ETHYLENE DICHLORIDE CH0 C!CH0 Cl

ETHYLENE GLYCOL BUTYL ETHER ACETATE

ETHYLENE GLYCOL DIACETATE

ETHYLENE GLYCOL METHYL ETHER ACETATE

ETHYLENE GLYCOL MONOALKYL ETHERS

ETHYLENE OXIDE/PROPYLENE OXIDE MIXTURE with an ethylene oxide content of not more than 30% wt

ETHYL-3-ETHOXYPROPIONA TE

2-ETHYLHEXYL ACRYLATE (inhibited) CH,CHCO,cH,CH(C,H,)C4Ho

2-ETHYLHEXYLAMINE C, HoCH( c, H,)CH-.NH1

ETHYLIDENE NORBORNENE

ETHYL METHACRYLATE (inhibited) HoCCCH,COOC,H,

o-ETHYLPHENOL

2-ETHYL-3-PROPYLACROLEIN CH,(CHoloCHC(C,H,)CHO

ETHYLTOLUENE

FERRIC CHLORIDE SOLUTIONS

FERRIC NITRATE/NITRIC ACID SOLUTION

FLUOROSILICIC ACID (20%-30%) IN WATER SOLUTION

FORMALDEHYDE SOLUTIONS .

(45% or less) HCHO

FORMIC ACID HCOOH

Ship type

2

2

3

3

3

3

2

3

3

2

3

3

3

3

3

3

2

3

3

3


system

2170 a2 b3 c3

1260 a2 b2 c2

942 al bl cl

1104 al bl cl

980 al bl cl

about al b2 c2 900

850 a3 b3 c3

940 al b2 c2 890 al bl cl

790 a2 b2 c3

900 al b2 c3

910 al b2 c2

I037 al bl cl 850 al b2 c2

860 al b2 c2 1410 a2 bl cl

1290 a2 b2 c2

1200 a3 b2 c2

1110 al b2 c2

1220 al b2 c2

Venti- Over- Cargo Electrical equipment lation fWw stripping Class Group system control

v2 11 str 0.1

v2 12 str 0.1 T2 II A

v2 str 0.3

v2 str 0.3

v2 str 0.3

v2 11

v2 12 str 0.3 T2 II B

v2 11 str 0.3 v2 11 str 0.1 T3 IIB

v2 11 str 0.1

v2 11 str 0.1

v2 11 T2 II A

v2 11

v2 11 II A

v2 11 str 0.1 v2 11 str 0.3

v2 12 str 0.3

v2 str 0.3

v2 11 str 0.3 T2 II B

v2 Tl II A

Fire Vapour protec- haz.ard

tion

No T

A F B T

A

A

A

A

A F c T

A

A

A F T

A F D T

A F D T

B

A F T

A F

No

No T

A F T

A T

"


Sec.7 A107 Sec.15 A300 A400 Sec.17 BIO?

Sec.15 A205

Sec.15 A300 A400 A600 A 700 B200 C700

Sec.15 A203 A300 A400

Sec.15 A205 A501

Sec.15 A300 BlOO

Sec.15 A300 BlOO

Sec.15 BlOO Sec.17 B107

Sec.15 A501 Sec.17 B107

Sec.7 AI07 Sec.15 A208 A300 BI03-107 Sec.17 BIO?

~"' "' £ nm ::T"' . ~ ... 0

:J> ;;., "O ::T "O -· . "O :J>"'

I '-,,£ O>-< "' ~ "' "' "' "' ~"'

~

I ~


FUMARIC ADDUCT OF ROSIN, WATER DISPERSION

FURFURAL C,H,OCHO

FURFURYL ALCOHOL

GLUTARALDEHYDE SOLUTIONS (50% or less) HOC(CH,),COH

GLYCIDYL ESTER OF ClO TRIALKYLACETIC ACID

HEPTANE (all isomers)

HEPTANOL (all isomers)

HEPTENE (all isomers)

HEPTYL ACETATE

HEXAMETHYLENEDIAMINE SOLUTION H7N(CH7),NH7

HEXAMETHYLENEIMINE c,H,,NH

HEXANE (all isomers)

REXENE (all isomers)

HEXYL ACETATE

HYDROCHLORIC ACID HCl

HYDROGEN PEROXIDE SOLUTION (over 8% but not ove:r 60%) H,o,

HYDROGEN PEROXIDE SOLUTIONS (over 60% but not over 70%)

2-HYDROXYETHYL ACRYLATE (inhibited)

2-HYDROXY-4-(METHYL THIO) BUTANOIC ACID

ISOPHORONEDIAMINE C,,,H,,N,

ISOPHORONE DIISOCYANATE C12H1sN202

ISOPRENE (inhibited) CH7C(CH,)CHCH7

Ship D Tank Gauging Tank type type system vent

system

3 1060 a1 b1 c1

3 1160 a1 b2 c2

3 1130 a1 b1 c1 3 1122 a1 b1 c1

3 a1 b1 c1

3 about a1 b2 c2 700

3 800 a1 b2 c2 3 700 a1 b2 c2 3 880 a1 b1 c1 3 890 a1 b2 c2

(90% sol.)

2 880 a2 b2 c2

3 about a1 b2 c2 660

3 670 a1 b2 c2 3 870 a1 b2 c2 3 1010 a3 b2 c2

1210

3 1195 a2 b3 c2

2 1195 a2 b3 c2

2 1104 a2 b3 c3

3 940 a1 b1 c1

3 925 a1 b2 c2

2 1064 a2 b3 c3

3 680 a1 b2 c2


v2 f1 str 0.1

v2 f1 str 0.3 T2 II B

v2 str 0.3 v2

v2 !1 str 0.1

v2 !1 str 0.3

v2 !1 str 0.3 v2 !1 str 0.3 v2 !1 str 0.1 v2 !1 str 0.3

v2 !1 str 0.3

v2 !1 str 0.3

v2 f1 str 0.3 v2 f1 str 0.1 v2

v2 f1 str 0.3

v2 !1 str 0.3

v2 f1 str 0.1

v2 str 0.3

v2

v3 !1 str 0.1

v2 !1 str 0.3 T3 II B


tion

No

A F T

A

No

A

A F

A F

A F

A

A T

A F c T

A F

A F

A F

No T

No

No

A T

A

A T

** T A B

.D

B F

"


Sec.15 A501

Sec.15 A203

Sec.15 A203

Sec.15 A202

Sec.15 A300 BlOO Sec.17 B107

Sec.15 A300 C500

Sec.15 A300 A400

Sec.15 A300 A400

Sec.15 A203

Sec.15 A206 A300 A400 A502 A800

Sec.15 B200

-o:c ., c: "' -"' ~ "'''"' I~ -Ou ~"' ;,,· n'"'~ ·< ""~ )> <.D u <.D u <.D

~

0 ~

I ~ ~


ISOPROPANOLAMINE

ISOPROPYLAMINE (CH3)2CHNH2

ISOPROPYLCYCLOHEXANE

ISOPROPYL ETHER (inhibited) (CH1)oCHOCH(CH1h LACTONITRILE SOLUTION (80 3 or less)

LAURIC ACID

LONG CHAIN ALKARYL POLYETHER (C11 - Czo)

LONG CHAIN POLYETHERAMINE IN ALKYL (C2 - C4) BENZENES

LONG CHAIN POLYETHERAMINE IN AROMATIC SOLVENT

MAGNESIUM LONG CHAIN ALKYL SALICYLA TE (C11 +)

MALEIC ANHYDRIDE HCCHC(O)OC(O)

MERCAPTOBENZOTHIAZOL, SODIUM SALT SOLUTION

MESITYL OXIDE (CH1),CCHCOCH1

METAM SODIUM SOLUTION

METHACRYLIC ACID (inhibited) CH,:C(CH1 )COOH

METHACRYLIC RESIN IN ETHYLENE DICHLORIDE

METHACRYLONITRILE (inhibited)

METHYL ACRYLATE (inhibited) CH,CHCOOCH1

Ship type

3

2

3

3

2

3

3

3

3

3

3

3

3

2

3

2

2

2


system

960 a1 b1 c1

690 a2 b3 c3

800 a1 b2 c2

723 a1 b2 c2

990 a3 b3 c3

860 a1 b1 c1

1000 a1 b1 c1 to

1500

a1 b2 c2

about a1 b2 c2 900

940 a1 b1 c1 to

1050

934 a1 b2 c2

1250 a1 b1 c1

850 a1 b2 c2

about a2 b1 c1 1150

1015 a1 b2 c2

about a2 b2 c2 1200

805 a2 b3 c3

950 a2 b2 c2

Venti- Over- Cargo Electrical equipment /ation flow stripping Class Group system control

v2 str 0.3 T2 II A

v2 12 str 0.3 T2 II A

v2 11 str 0.3

v2 11

v3 12 str 0.1

v2 11 str 0. 1

v2 11 str 0.3

v2 11 str 0.3

v2 11 str 0.3

v2 str 0.3

v2

v2 11 str 0. 1

v2 11 T2 II B

v2 11

v2

v2 12 str 0.1 T2 II A

v3 12

v2 11 str 0.1 Tl II 8


tion

A F F

c F D T

A F

A F

A T c D

A

A 8

A F

A F

A B

• A c

No

A F T

No

A T

A F B T

A F T

A F T

"


Sec.15 A203

Sec.15 A203 A300 A400 8200 Sec.17 8107

Sec.15 A700

Stabilized during transport Sec.15 A300 A400 A900 AlOOO Sec.17 8107

Sec.15 AllOO

Sec.15 A202

Sec.15 A202

Sec.15 A207 .

Sec.15 A205 A300 A400 Sec.17 8107

Sec.17 8207

~" '-"c (") iD ::T"' . ~ -!>o ~~

'C "' 'C ::T ):.~·

I~ .,,~ m-<

<O ~

"' "' "' "' W<.O


system

METIIYLAMINE SOLUTIONS 2 860 a2 b3 c3 (42% or less) CH3NH,

METHYLAMYL ACETATE 3 860 al b2 c2 METIIYLAMYL ALCOHOL 3 810 al b2 c2 METIIYL BUTYRATE 3 890 al b2 c2 METIIYLCYCLOHEXANE 3 770 a1 b2 c2 METIIYLCYCLOPENDADIENE 3 980 al b2 c2 DIMER

METIIYL DIETHANOLAMINE 3 1040 al bl cl 2-METHYL-6-ETHYL ANILINE 3 969 al bl cl (CH3)(C.H,)C,H3NH, c,HnN

2-METHYL-5-ETHYL PYRIDINE 3 920 al bl cl CH,c,H,NC.H,

METIIYL FORMATE 2 950 a2 b2 c3

~ HCOOCH3 980

r METIIYL HEPTYL KETONE 3 820 al b2 c2 2-METHYL-2-HYDROXY-3-BUTYNE 3 867 al b2 c2 (CH3)2C(OH)C,,CH

<

~ METIIYL METHACRYLATE 2 940 a2 b2 c2 (inhibited) CH,C(CH,)COOCH,

METIIYL NAPHTHALENE (molten) 2 about a2 b2 c2 1000

2-METHYLPYRIDINE 2 952 a2 b3 c2 C,H4N(CH3)

3-METHYLPYRIDINE 2 960 a2 b3 c2

4-METHYLPYRIDINE 2 950 . a2 b3 c2 C,H7N

METIIYL SALICYLATE 3 1180 al bl cl alpha-METHYL STYRENE (inhibited) 3 910 al b2 c2 C6H5C(CH3)CH,

MORPHOLINE 3 1000 al b2 c2 (CH,)40NH

MOTOR FUEL ANTI KNOCK COMPOUNDS (see TETRAETHYL LEAD)

NAPHTHALENE (molten) 2 975 a2 b2 c2 C,oH,

NAPHTHEN!C ACIDS 2 960 a2 bl c2


v3 12 str 0.3

v2 11 str 0.3 v2 11 str 0.3 v2 11 str 0.3 v2 11 str 0.3 v2 11 str 0.1

v2 v2 str 0.3

v2 11 str 0.1 II A

v2 12

v2 11 str 0.1 v2 11 II A

v2 11 T2 II A

v2 11

v2 11

v2 12 str 0.3

v2 12

v2 11 str 0.1 v2 11 Tl II B

v2 11 T2 II A

v2 11 Tl II A

v2 11


tion

A F c T D

A F

A F

A

A F

B F

A

A D

A D

A F T

A F

A F B T D

A F T

A D

A F

A F c

A F T

A

A F D T

A F

A

A

..


Sec.15 A202 A300 A400 Sec.17 BIO?

Sec.15 A203

Sec.15 A205

Sec.15 A300 A400 B200 Sec.17 BIO?

Sec.15 A209

Sec.15 A205 A300 A400

Sec.15 A205 Sec.15 A300

Sec.15 A205 A300 A400

Sec.15 A;203

.,, " "'c cg~

"'-... Q I g? ~~· o,-n ':rS. ·< "'~ l>w U(O uw 'I>

tJ i:J

I ~


NEODECANOIC ACID

NITRATING ACID (mixture of sulphuric and nitric acids)

NITRIC ACID (above 70%) HNO, .

NITRIC ACID (less than 70%) HN03 NITRO BENZENE qH5NOz

o-NITROPHENOL (molten) c.H,NO,

I- or 2-NITROPROPANE CH3CH,CH,.No2 NITROPROPANE (60%) NITROETHANE (40%) MIXTURE

o- or p-NITROTOLUENES C7H7NO,

NONANE (all isomers)

NONENE (all isomers)

NONYL ACETATE

NONYL ALCOHOL (all isomers)

NONYL PHENOL .

NONYL PHENOL POLY (4 - 12) ETHOXYLATES

OCTANE (all isomers)

OCTANOL (all isomers)

OCTENE (all isomers)

n-OCTYLACETATE

OCTYL ALDEHYDES

OLEFIN MIXTURES <Cs-~l

OLEFIN MIXTURES (C5 - C15)

alpha-OLEFINS (C, - CTR) MIXTURES

Ship D Tank Gauging type type system

3 920 a1 b1 2 1700 a2 b3

to 1900

2 1500 a2 b3

2 1420 a2 b2

2 1200 a2 b3

2 1294 a2 b3 (4S 0 C)

3 IOOO a1 b2

3 I020 a1 b2

2 1160 a2 b3 .

3 about a1 b2 700

3 730 a1 b2 3 a1. b1 3 830 a1 b1 2 940 a2 b1 3 I040 a1 b1

to IO?O

:i about a1 b2 700

3 830 a1 b1 3 700 a1 b2 3 a1 b1 3 830 a1 b2 3 600 a1 b2

to 700

3 600 a1 b2 to

800

3 a1 b2



c1 v2 str 0.3 c2 v3 f2 str 0.3

c2 v2 f2 str 0.3

c2 v2 f2 str 0.3

c3 v3 f2 str 0.1 Tl II A

c3 v2 f1 str 0.1

c2 v2 f1 T2 II B

c2 v2 f1

c3 v3 f2 str 0.1 II B

c2 v2 f1 str 0.3

c2 v2 f1 str 0.1 c1 v2 f1 str 0.3 c1 v2 str 0.3 c1 v2 f1 c1 v2 f1 str 0.1

c2 v2 f1 str 0.3

c1 v2 str 0.3 c2 v2 f1 str 0.1 c1 v2 str 0.3 c2 v2 f1 str 0.1 c2 v2 f1 str 0.3

c2 v2 f1 str 0.1

c2 v2 f1 str 0.1


tion

A

No

No T

No T

A T D

A T D

A F T

A F T

A T B

B F c

A

A

A

A

A

A F

A

A F

A

A F

A F

A F

A

"


Sec.IS BIOO Sec.I? BIO?

Sec.IS A300 BIOO See.I? BIO?

See. IS A300 BIOO Sec.I? BIO?

Sec.7 AIO? Sec.IS A300 A400 A900

See.IS A300 A400 AllOO

Sec.IS A20S

Sec. IS A300 A400

Sec. IS AllOO

;'i' ;JJ me n<> =r"' :S:..O' ;!>~

"rn "=r '.l>-g· I -;_ .,, s. "< "' ~ " "' "' "' "' "'

~

I ~ ~


OLEUM H1S04+S03

OLEY AMINE

PALM KERNEL ACID OIL

PARALDEHYDE OCH(CH,)OCHCH,OCHCH,

PENTACHLOROETHANE CHChCCl,

1,3-PENT ADIENE (inhibited)

PENTANE (all isomers)

PENTENE (all isomers)

n-PENTYL PROPIONATE

PERCHLOROETHYLENE

PHENOL C6H50H

l-PHENYL-1-XYLYL ETHANE

PHOSPHORIC ACID H,PO,

PHOSPHORUS (yellow or white) p, .

PHTHALIC ANHYDRIDE (molten) C6H4(CO),O

alpha-PINENE

beta-PINENE

PINE OIL

POLY(2+)CYCLIC AROMATICS

POLYALKYL(CX~-~ ACRYLATE IN LE

POLY ALKYLENE OXIDE POLYOL

POLYETHYLENE POLYAMINES

POLYFERRIC SULPHATE SOLUTION

POL YMETHYLENE POL YPHENYL ISOCYANATE

Ship type

2

2

3

3

2

3

3

3

3

3

2

3

3

I

3

3

3

3

2

3

3

3

3

2


system

Max. a2 b3 c3 1980

8280 a2 b2 c2 870 al bl cl

990 al b2 c2

1680 a2 b2 c3

680 al b2 c2

630 al b2 c2 620 al b2 c2 870 al b2 c2 1623 al b2 c3 IOSO a2 b3 c3

990 al b1 c1 SS% a2 b1 c1 1690

1820 a3 b3 c2

IS30 a1 b2 c2

860 a1 b2 c2 a1 b2 c2 a1 b1 c1

about a2 b2 c2 930

about a1 b2 c2 900

1020 a1 b1 c2 to

1060

980 a1 b1 c1 1460 a1 b1 c1 1198 a2 b3 c3

·'


v3 f2 str 0.3

v2 f1

v2 str 0.3

v2 str 0.3 T3 II B

v3 f1 str 0.1

v2 f1 str 0.3

v2 fl str 0.3 v2 f1 str 0.3 v2 f1 str 0.3 v2 f1 str 0.1 v2 f2 str 0.1 Tl II A

v2 str 0.3 v2

v2 f2

v2 str 0.3 Tl II A

v2 f1

v2 f1 str 0.1 v2 str 0.3 v2 f1

v2 f1 str 0.3

v2 str 0.3

v2 str 0.3 v2 str 0.3 v2 f1


tion

No T

A B

A F

No T

B F T

A F

A F

A F

No T

A T

B

No

c

A D

A F

A F

A

A D

A

A

A

A

** T A

'


Sec.IS A300 AS02 BIO! BI03-107

Sec.17 B107

Sec. IS A300 A400

Sec.IS AIOOO

Sec.IS B200

Sec.IS B200

Sec.7 AI07 Sec.IS A300 A400 AllOO

Sec.IS A300 B102-107

Sec.IS C600 Sec.17 B107

'

Sec.IS A203

Sec. IS A211

Sec.IS A206 A300 A400 A800

"O:C "'c ~~ "'-°'~ I~ ~~ c,,-n ':;r£ ·< ,. ~ ~"' " "' " "' j,.

ti gi

I I


POLYOLEFINAMINE IN ALKYL (C7-C.J BENZENES

POL YOLEFINAMINE IN AROMATIC SOLVENT

POLYOLEFIN PHOSPHOROSULPHIDE-BARIUM DERIVATIVE (C, 2 -C.m)

POTASSIUM CHLORIDE SOLUTION (10% or more)

POTASSIUM HYDROXIDE SOLUTION

POTASSIUM OLEATE

n-PROP ANOLAMINE H7 NCH7CH2CH70H

/l-PROPIOLACTONE c,H.o,

PROPIONALDEHYDE C,H,CHO

PROPIONIC ACID CH3CH2COOH

PROP!ONIC ANHYDRIDE (CH1CH7CO),O

PROPIONITRILE C3H5N

n-PROPYLAMINE CH3(CHiJ2NH2

PROPYLBENZENE (all isomers)

n-PROPYL CHLORIDE

PROPYLENE DIMER

PROPYLENE OXIDE CH,CHOCH7

PROPYLENE TETRAMER

PROPYLENE TRIMER

PYRIDINE CH(CHCH),N

ROSIN

ROSIN SOAP (disproportionated solution)

Ship type

3

3

3

3

3

3

3

2

3

3

3

2

2

3

3

3

2

3

3

3

3

3


system

a1 b2 c2

a1 b2 c2

1080 a1 b1 c1 to

1220

about a1 b1 c1 1400

about a1 b1 c1 1500

about a1 b1 c1 1000

982 a1 b1 c1

1150 a2 b2 c2

800 a1 b2 c2

990 a1 b2 c2

1010 a1 b2 c2

780 a3 b3 c3

720 a2 b3 c3

860 a1 b2 c2 about a1 b2 c2 800

720 a1 b2 c2 860 a2 b3 c3

760 a1 b2 c2 740 a1 b2 c2 980 a1 b2 c2

1000 a1 b1 c1 1050 a1 b1 c1


v2 11 str 0.3

v2 11 str 0.3

v2 str 0.3

v2 str 0.3

v2 str 0.3

v2 11 str 0.3

v2 str 0.3

v2 II A

v3 str 0.3

v2 Tl II A

v2 str 0.3 T2 II A

v3 12 str 0.3 Tl II B

v2 12 str 0.3 T2 II A

v2 11

v2 11

v2 11 str 0.3 v3 12 T2 II B

v2 11 str 0.1 v2 11 str 0.1 v2 11 Tl II A

v2 11 str 0.1 v2 11 str 0. 1

Fire Vapour protec- ha:zard

tion

A F

A F

A B

No

No

A

A D

A T

A F T

A F

A T

A F D T

A F D T

A F

A F B

A F

A F c T

A F

A F

A F

A

A

'


See.15 A202

See.15 A203

See.15 A501 See.17 B107

Sec.15 A207 A300 8103-107 Sec.17 B107

See.15 A207

See.15 A300 A400 A900 See.17 B107

See.15 A203 A300 A400 A700 Sec.17 B107

See.15 A700 B200 C700.

Sec.15 A205

~ . ;JJ "1c nro or"' '.p..Q' ~~

"O "' -o or . -c· ~"' I:_ -aS. "'< cc~ ro w

"''° '"''°

0 gi

I ~ ~


SODIUM ALUMINATE SOLUTION

SODIUM BOROHYDRIDE (15% or less) /SODIUM HYDROXIDE SOLUTION

SODIUM CHLORATE SOLUTION (50% or less) NaCI03 SODIUM DICHROMATE SOLUTION (70 % or less) Na?Cr1 07/H?O

SODIUM HYDROGEN SULPHIDE (6% or less)/ SODIUM CARBONATE (3% or less) SOLUTION

SODIUM HYDROGEN SULPHITE SOLUTION (45% or less)

SODIUM HYDROSULPHIDE SOLUTION (45% or less) NaSH·2H,o

SODIUM HYDROSULPHIDE/ AMMONIUM SULPHIDE SOLUTION NaHS/(NH4)SiHzO

SODIUM HYDROXIDE SOLUTION (see caustic soda)

SODIUM HYPOCHLORITE SOLUTION (15% or less) NaOCL

SODIUM NITRITE SOLUTION .

SODIUM PETROLEUM SULFONATE

SODIUM SILICATE SOLUTION

SODIUM SULPHIDE SOLUTION (15% or less)

SODIUM SULPHITE SOLUTION (25 % or less)

SODIUM TARTRATES and MONO-/DI-SUCCINATE SOLUTION

SODIUM THIOCYANATE SOLUTION (56% or less)

STYRENE MONOMER (inhibited) C6H,CHCH?

Ship type

3

3

3

2

3

3

3

2

3

2

2

3

3

3

3

3

3


system

about al bl cl 1000

about al bl cl 1400

1497 al bl cl

1720 a2 b3 cl

about al bl cl 1000

1300 al bl cl

1257 al b2 c2

1257 a2 b3 c3

max. al b2 c2 1300

1270 a2 bl cl

1050 a2 bl cl about al bl cl 1000

about al b3 c2 1000

about al bl cl 1000

1400 al bl cl

about al bl cl 1000

920 al bl c2


v2

v2 str 0.3

v2 fl

v2 f2 str 0.3

v2 fl str 0.1

v2

v2 fl str 0.1

v3 f2 str 0.1

v2 str 0.3

v2 f2 str 0.1

v2 fl str 0.1 v2

v2 fl str 0.1

v2 fl str 0.3

v2

v2 11 str 0.1

v2 fl str 0.1 Tl II A


tion

No

No

No

No

No

No

No T

A F T

No

No

A

A

No T

No

A B

No

B F

..


Sec.15 A202

Sec.15 A202

Sec.15 A501

Sec.15 A203 A300 A400

Sec.15 A501

Sec.15 A202 A300 A400 A501 B200 Sec.17 B107

Sec.15 A202 (copper, brass and bronze may be used) A501

Sec.15 A501

Sec.15 A206 A501

Sec.15 A501 .

Sec.15 A205

-0:0 "' c: <O -

"' 1J: "'-OOQ

I~ ~-g c,,· n2" ?°"-< ,,. ~ l>"' "' "' "' "' j,.

tJ gi

I ~


SULPHO HYDROCARBON LONG CHAIN (C18+) ALKYLAMINE MIXTURE

SULPHUR (molten) s SULPHURIC ACID H2so4

SULPHURIC ACID (spent)

TALL OIL, CRUDE AND DISTILLED

TALL OIL FATTY ACID, BARIUM SALT

TALL OIL PATTY ACID (resin acids less than 20 % ) TALL OIL SOAP (disproportionated) solution

TETRACHLOROETHANE CHC11CHC11

1,1,2,2-TETRACHLOROETHYLENE (see PERCHLOROETHYLENE)

TETRAETHYLENE PENT AMINE NH,(CH,CH,NHhCH,CH,NH,

TETRAETHYL LEAD and TETRAMETHYL LEAD in anti-knock compounds (CoH,)4Pb and (CH1 )4Pb

TETRAHYDROPURAN (CoH4)?0

TETRAHYDRONAPHTHALENE

TETRAMETHYLBENZENE (all isomers)

TOLUENE

TOLUENEDIAMINE CH3C6H3(NH2)2

TOLUENE DIISOCYANATE CH3C6H3(NC0)2

o-TOLUIDINE CH1 C,H4 NH,

Ship type

3

3

3

3

3

3

3

3

3

3

1

3

3

3

3

2

2

2


system

1070 a1 b1 c1

1800 a3 b1 c1

1S60 a2 b1 c1 1840

1S90 a2 b1 c1

IOOO a1 b1 c1 llSO a1 b1 c1

IOOO a1 b1 c1

I040 a1 b1 c1

1S90 a1 b2 c3

IOOO a1 b1 c1

lSOO a3 b3 c3 1700

890 a1 b2 c2

980 a1 b1 c1 840 a1 b1 c1 to

990

870 a1 b2 c2 IOOO a2 b3 c3

1210 a2 b3 c3

1008 a2 b3 c3


v2 f1 str 0.1

v2 T3

v2 str 0.3

v2 str 0.3

v2 f1 str 0.1

v2 11 str 0.1

v2 str 0.3

v2 11 str 0.1

v3 f1 str 0.1

v2

v3 12 T4 II A

v2 T3 II B

v2 str 0.3 v2

v2 11 str 0.3 v3 12 str 0.3


v3 12 str 0.3

.


tion

A B

No

No

No

A

A

A

A

No T

A

A p c T

A p T

A

A

A p

A T D

•• p A T c D

A T c

"


Sec.lS C900

Sec.lS A300 AS02 BlOO C800

Sec.lS A300 AS02 BlOO C800

Sec. lS AllOO

Sec. lS A300 A400

Sec.lS A202

Sec.lS A300 A400 A900 Sec.17 BIO?

Sec.lS A202 A300 A400 Sec.17 BIO?

Sec.IS A20S A300 A400 A800 Sec.17 BIO?

Sec. IS A300 A400

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Name and chemical fonnula Ship D Tank Gauging type type system

TRIBUTHYL PHOSPHATE 3 980 a1 b1 1,2,4-TRICHLOROBENZENE 2 1447 a2 b2 C,H,Ch

1,1,1-TRICHLOROETHANE 3 1460 a1 b1 1,1,2-TRICHLOROETHANE 3 1440 a1 b2 CHCl,CH,Cl

TRICHLOROETHYLENE 3 1460 a1 b2 CHCl:CC12 1,2,3-TRICHLOROPROPANE 2 1389 a2 b3 CH,C!CHC!CH,Cl

1,1,2-TRICHLORO- 3 about a1 b1 1,2,2-TRIFLUOROETHANE 1400

TRICRESYL PHOSPHATE 2 1160 a2 b1 (containing less than 1 % ortho-isomer)

~ TRICRESYL PHOSPHATE I 1160 a2 b3 (containing 1 % or more ortho-:isomer)

I TRIDECANOIC ACID 3 8SO a1 b1 TRIETHANOLAMINE 3 1130 a1 b1 (CH,CH,OHhN ·.

< TRIETHYLAMINE 2 720 a2 b2

~ (CiH5)3N

TRIETHYLBENZENE 2 860 a2 b1 TRIETHYLENETETRAMINE 3 980 a1 b1 H,NcH,(CH,NHCH,),CH,NH,

TRIETHYLPHOSPHITE 3 970 a1 b2 (CH1CH,hP01

TRllSOPROPYLATED PHENYL 2 1100 a2 b1 PHOSPHATES to

1400

TRIMETHYLACETIC ACID 3 90S a1 b2 (CH1hCCOOH

TRIMETHYLAMINE SOLUTION 2 900 a2 b3 (30% or less)

TRIMETHYLBENZENE (all isomers) 3 880 a1 b2 TRIMETHYLHEXAMETHYLENE- 3 867 a1 b1 DIAMINE (2,2,4- and 2,4,4-isomers) C0H"N'



c1 v2 11 str 0.1 c2 v2 11 str 0.1

c1 v2 11 str 0.3 c3 v2 11 str 0.3

c3 v3 11 str 0.3 T2 ll A

c3 v3 12 str 0.3

c1 v2 str 0.3

c1 v2 11

c2 v2 12

c1 v2 11 str 0.1 c1 v2 ll A

c3 v2 str 0.3 T2 ll A

c1 v2 11 c1 v2 T2 ll A

c3 v2 11 str 0.1

c1 v2 11

c2 v2

c3 v2 12

c2 v2 11

c1 v2 11


tion

A

A T B

A

No T

No T

B T D

No

A

B

A

A

A F c T

A

A

A F B T

A

A

A F c T

A F

A c

~ ..


Sec. IS AllOO

Sec.IS A300 A400 ASOI

Sec.IS A300 A400 ASOI

Sec. IS A300 A400

Sec. IS A1100

Sec.IS A202

Sec.IS A203 A300 A400 Sec.17 B207

Sec.IS A202

Sec.IS A207 BIOi BI03-107

Sec.IS A202 B200 Sec.17 B107

Sec.IS A202

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system

TRIMETHYL HEXAMETHYLENE 2 1017 a2 b3 c3 DllSOCYANATE (2,2,4- and 2,4,4--isomers) c,,H,.N,o,

2,2,4-TRIMETHYL- 3 9SO a1 b1 c1 1,3-PENTANEDIOL- 1-ISOBUTYRATE

TRIMETHYL PHOSPHITE 3 1000 a1 b2 c3 (CH,OhP

1,3,S-TRIOXANE 3 1170 a1 b2 c2

TRIXYL YL PHOSPHATE 1 llSO a2 b1 c1 TURPENTINE 3 860 a1 b2 c2 UNDECANOIC ACID 3 890 a1 b1 c1 1-UNDECENE 3 700 a1 b1 c1 UNDECYL ALCOHOL 3 830 a1 b1 c1

~ UREA AMMONIUM SOLUTION 3 1000- a1 b2 c2 (containing aqua ammonia) 1300

z V ALERALDEHYDE (all isomers) 3 810 a1 b2 c2

~ CH1(CH,hCHO

VINYL ACETATE (inhibited) 3 940 a1 b1 c2 CH1COOCHCH,

<

~ VINYL ETHYL ETHER (inhibited) 2 770 a3 b3 c2 CHzCHOCzH5

VINYLIDENE CHLORIDE (inhibited) 2 12SO a2 b2 c2 cH,cc1,

VINYL NEODECANOATE (inhibited) 3 880 a1 b1 c1 VINYLTOLUENE (inhibited) 3 890 a1 b2 c2 CH7CHC0H,CH1

WHITE SPIRIT, low (IS-20%) 2 7SO a2 b2 c2 aromatic

XYLENES 3 890 a1 b2 c2 XYLENOL 3 1040 a1 b1 . c1 ZINC ALKARYL 3 1000 a1 b1 c1 DITHJOPHOSPHATE (C7-C, 0)

ZINC ALKYL 3 lOSO a1 b1 c1 DITHIOPHOSPHATE (C3-C1>j) to

1100


v3 f1 str 0.1

v2 str 0.3

v2 f1

v2 f1

v2 f2 v2 f1 str 0.1 v2 str 0.1 v2 f1 str 0.1 v2 f1 str 0.1 v2 str 0.3


v2 f1 str 0.3 T2 II A


v2 f1 T2 II A

v2 f1 str 0.1 v2 f1 II A

v2 f1 str 0.1

v2 f1 str 0.3 v2 f1 str 0.1 II A

v2 str 0.3

v2 f1 str 0.1


ti on

** T A c

A

A F D T

A F D

A

A F A

A

A

A T

A F T

A F

A F T

B F T

B

B F

A F

A F B

A B

A B

..

Remarh Special requirements

Sec.IS A300 A400 AS02

Sec. IS AllOO

Sec. IS A20S A210

Sec. lS A501 A 700

Sec.lS A209 A700, B200, C200 Sec.17 B107

Sec. IS A206 B200 Sec.17 B107

Sec. IS ASOl

Sec.IS A202

Sec. IS ~1100

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DNV Ship rules Pt.5 Ch.4 - Chemical Carriers · CHEMICAL CARRIERS JULY 1999 SECTIONS ... 9 Gas...

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Transcript of DNV Ship rules Pt.5 Ch.4 - Chemical Carriers · CHEMICAL CARRIERS JULY 1999 SECTIONS ... 9 Gas...