BS EN12079 1999 Inspection and Testing of Offshore Container

BRITISH STANDARD w w

Offshore containers - Design, construction, testing, inspection and marking

The European Standard EN 12079:1999 has the status of a British Standard

ICs 55.180.10

BS EN 12079: 1999

COPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling ServicesCOPYRIGHT British Standards Institute on ERC Specs and StandardsLicensed by Information Handling Services

STD-BSI BS EN L2079-ENGL 1779 L b 2 4 b b l O B 0 1 B L B bOB E

BS EN 120791999 ~ ~

direction of the Consumer Products and Services Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 1999

Amd. No.

O BSI 10-1999

National foreword

Date Comments

This British Standard is the English language version of EN 12079: 1999. It supersedes BS 7072: 1989 which is withdrawn.

The UK participation in its preparation was entrusted by Technical Committee PKW/5, Freight containers and transport, to Subcommittee PKW/5/1, Offshore containers, which has the responsibility to:

- aid enquirers to understand the text,

- present to the responsible European committee any enquiries on the

- monitor related intemational and European developments and promulgate

interpretation, or proposals for change, and keep the UK interests informed;

them in the UK

A list of organizations represented on this subcommittee can be obtained on request t o its secrekxy.

C r o s s - r e f e r e n c e s

The British Standards which implement international or European publications referred t o in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find facility of the BSI Standards Electronic Catalogue.

A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application.

C o m p l i a n c e w i t h a Brit ish S t a n d a r d does not of i t s e l f c o n f e r immuni ty from l e g a l obligations.

S u m m a r y of pages

This document comprises a front cover, an inside front cover, the EN title page, pages 2 t o 29 and a back cover.

The BSI copyright notice displayed in this document indicates when the document was last issued.

ISBN O 580 32633 O


EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN 12079

March 1999

English vcrsioii

Offshore containers - Design, construction, testing, inspection and marking

Conteneurs pour utilisation en nier - Conccption. construction essais. iiispcction ct inarquapc

Oftshore-Container - Bcinessung, Konstruktion. Prüfung. Überwachung und Kennzeichnung

This Europeaii Standard was approvcd by CEN on I3 February 1999.

C'EN iiiciiibers are bound to comply with the CENíCENELEC Iiiternal Regulations which stipiilatc thc conditions for giving this Europcaii Standard the status o f a iiatioiial standard without any altcration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Sccrctariat or to any CEN iiicinber.

This Europcan Standard cxists in thrce official versions (English. French. Gcnnan). A vcrsioii in any othcr Ianguagc iiiadc by translation iiiidcr thc responsibility of a CEN incinber into its owti Iaiiguagc and notified to thc C'cntral Sccretariat has the sanic stanis as the offcial vcraioiis.

C'EN iiienibcrs arc tlic national standards bodies of Austria. Bclgiuin. Czcch Republic. Dcniiiark. Finland, France. Gcmiany. Grcccc. Icciand. Ireland. Italy. Luxcinbourg. Ncthcrlands. Noiway. Portugal. Spain. Swcdcii. Switzcrland and United Kingdoin.

CEN Europcan Coininittce for Standardization

Comité Européen de Norinalisatioti Europäisches Koinitcc for Nonnung

Central Sccretariat: rue de Stassart, 36 B- 1050 Bnisscls

[i_) 1999 CEN All rights o f exploitation in any foiin and by any nicans rcscrved worldwidc for CEN national Meinbcrh. Rcf.No. E N 12079: I999 E


STD-BSI BS EN 12079-ENGL 1999 S 3b2LibbS 0 8 0 3 8 2 0 2bb

Page 2 EN 12079: 1999

Contents

Foreword 1 Scope 2 Normative references 3 Definitions 4 Symbols 5 Design 6 Materials 7 Type testing 8 Production 9 Marking I O Plating of containers 1 I Certificate of conformity 12 Periodic examination. tests and repairs Annex A (informative) Recoininended knowledge and cxperiencc of staff responciblc for inspection of offshore containers Aniicx B (iiifoniiative) Guidance on prc-trip inspections Aniicx C (infoiinative) Bibliography Table 1 - Charpy iinpact tcst teinperature: structural steel for priinary structural iiieinbers Table 2 - Chemical composition (ladle analysis)” Table 3 -Mechanical properties Table 4 - Aluminiuin alloys and teinpers for rolled products Table 5 - Aluminium alloys and tempers for extnidcd products Table 6 - Documentation of materials Table 7 - Non-destructive examination (NDE) of structural welds Table 8 - Number of containers required for lifting tcst Table 9 - Schedule of examination and tests

Page 2 3 3 4 6 6

13 16 18 21 22 24 25

29 39 79 13 14 15 15 16 16 19 20 26

Foreword

This European Standard has been prepared by Technical Committee CENITC 280, Offshore containers. the Secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorseinent. at the latest by Septeinber 1999, and conflicting national standards shall be withdrawn at the latest by Septembcr 1999.

According to the CENICENELEC Internal Regulations. the national standards organizations of the following countries are bound to iinplement this European Standard: Austria, Bclgiuin, Czech Republic. Deninark. Finland. France, Germany. Greece, Iceland. Ireland. Italy, Luxembourg, Netherlands, Noway. Portugal, Spain, Sweden, Switzerland. and the United Kingdom.

HSI 10-1 999


EN 12079: i 999

1 Scope

This standard specifies transport related requirements for the design, construction and marking of offshore freight and service containers with rnaxiniuin gross mass not exceeding 25 O00 kg, intended for repeated use to, froin. and between offshore installaiions and ships. I t establishes a system for plating of offshore containers, linked to a defined scheme for periodic exainination and test, and introduces a requirement for pretrip inspection of offshore containers.

Guidance as to the knowledge and experience required by those responsible for carrying out inspections in relation to the system of periodic inspections specified in this standard is given in annex A.

Requirements for the lifting set and for non-transport related requirements, relating to offshore service containers. e .g . requirements for installation and use. are outside the scope of the standard.

2 Normative references

This European Standard incorporates by dated or undated reference. provisions from other publications. These nonnative rcfcrences are cited at the appropriate placcs in the text and the publications are listed hcrcafter. For dated references. subseqiient amendments to or revisions of any of these publications apply to this European Standard only when incorporated i n it by aiiiendment or revision. For undated references the latest edition of the publication referred to applies.

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Page 4 EN 12079: 1999

3 Definitions

For the purposes of this standard, the following definitions apply.

3.1 offshore container portable unit for repeated use in the transport of goods or equipment, handled in open seas, to. froin, and between fixcd and/or floating installations and ships

NOTE The t i i i i t incorporates periiianeiitly iiicialled eqtiipiiieiit foi- lil i i i ig aiid Iiaiidliiig aiid i i iay iiiclnde eqiiiptiieni foi. l~lliiig. eiiipiyiiie. coolins. iieatiiip. etc.

3.2 permanent equipment equipinent that is attached to the container and which is not cargo

NOTE This tiioy iiicltidc. e.p.. litiiiip seis. rrfiigeraiioii tiiiits. slielves. scciiriiig points. garhopc coiiipaciors.

3.3 primary structure load carrying and supporting frames and load carrying panels. Primary structure is divided into two subgroups:

3.3.1 essential a n d non-redundant primary structure main structural elements which transfer the cargo load to thc crane hook (i.e. fonning the “load path” froin the payload to thc lifting sling) and will include. at least:

- top and bottom side rails;

- top and bottom end rails;

- corner posts;

-- pad eyes

although other primary structure inay also be considered as essentialinon-redundant

3.3.2 non-essential primary structure other structural elements for which the main function is other than that described in 3.3.1, e.g. floor plates and protective fraine meinbers. Side and roof panels. incliiding corrugated panels, are not considered to be part of the primary structure


STDoBSI BS EN 12079-ENGL 1999 1191 Lb24bb9 0803823 T75 ID

Page 5 EN 12079:1999

3.4 secondary structure parts which arc not considered as load carrying for thc purposes of the design calculations. including the following components:

- doors, wall and roof panels;

- panel stiffeners and corrugatioris;

- structural components used for tank protection only;

- internal securing points

NOTE Noi all coiitaiiit'r walls alp corrtigaied.

3.5 offshore freight container offshore container built for the transport of goods

NOTF Exaiiiples ofoïïsliore freight coiitaiiiers are:

. . general c a r p container: a closed container with doors;

.- cargo basket: aii »pen top contaiiier for geiierril or special cargo;

-- . tank coiitaiiier: :i container for the ti-aiispori of dangerous or non-dangerous fluids;

- bulk coiitaiiier: a container for the traiispoii ofcolids i i i bulk;

-- special coiitaiiier: a container foi. the traiisport of special cargo, e.g. garbage containers, eqiiipineiit hoxes, gas cylinder racks.

3.6 offshore service container offshore container built aiid equipped for a special scrvice task, usually as a tcinporary installation, e.g. laboratorics. workshops, stores. powcr plants, control stations

3.7 waste skip open or closed offshore container used for the storage and removal of waste

NOTE Noriiinlly coiistriicied finiii tlat steel plate toriiiiiig the load hearing scctioiis of tlie ctintainei-. with hraciiig i n the torni of steel profiles. e.g. clianiiel or liollow seciioii. being lilted Iiori7oiitally and/or vertically arotiiid sides aiid ends. In additioii to the pad eyes foi. the liliiiip set. tliese containers iniiy hake side iiioiiiited Iiigs suitable tor tise with the litiiiig equipnient iiiouiited on iì skip l i t i veliicle.

3.8 prototype equipment item, used for type testing. considered to be representative of the product for which conformity is being claimed. It may either be fabricated especially for type testing o r selected at random from a production series

3.9 owner legal owner of the offshore container or his delegated nominee

3.10 lifting set itenis of integrated lifting equipment used to connect the offshore container to the lifting appliance

13SI 10-1999


EN 12079: 1999

4 Symbols

- R: the rating, ¡.e. the maximum gross mass of the container and its cargo, in kg;

- T: the tare mass, i.e. the mass of an empty container (without cargo and excluding lifting set), in kg;

- P: the payload, ¡.e. the maximuin permissible mass of cargo which may be safely transported by the container, in kg: N O T E I P = R ~ T. NOTE 2 R. Taiid Pare. by deliiiitioii iii ui i i ts ol'iiiasc. kilograii is (kg). Wlierc desigii reqiiireiiicnis are based o11 the gravitational forces derived fi-oin these values. tliace forces at-c indicated thus: R,. T, and P,. i l i e tiiiiis oïw l i i c l i are newioiis oi 111u It iplec tl1ereof. - T D : the design air temperature. ¡.e. a minimuin reference temperature used for the selection of steel grades used in offshore containers and equipment expressed in degrees centigrade;

- o,: the von Mises equivalent stress, expressed in MPa or N/inm';

- Re: the specified minimuin yield stress, expressed in MPa or N/inim'.

5 Design

5.1 General

An offshore container shall have sufficient strength to allow loading and unloading from supply vessels offshore operating in a sea state with significant wave heights of 6 in and to withstand impact froin heavy seas.

NOTE Local iiiipacts. e.p. h m hiitiiig oilier deck cargo or rigid paris oftlie ship structure. niay cause extreiiie loads i i i such coiiditions

To prevent the containers froin ovcrturning (tipping) on a inoving deck, they shall be designed to withstand tilting at 30" in any direction. without overturning when loaded at its maxiinum gross mass. with the centre of gravity considered to be at the hall' height of the container.

Protruding parts on the outside of the offshore container that may catch other containers or structures shall be avoided. Protruding parts (door handles, hatch cleats, etc.) shall be so placed or so protected that they do not catch the lifting set.

Where containers are designed for stacking. and the lifting set hangs over the side of the top fraine they shall be fitted with a method of protection for those exposed parts, e .g . corners raiccd to sufficient height above the fraine and roof to prevent unintentional contact with, and damage to. thc lifting set.

Containers shall be designed as structural frames (primary structure), with non-load bearing cladding where necessary (secondary structure). Only the priinary structure shall be considered in the design calculations; however. on certain types of containers, e.g. waste skips with trapezium shaped sides, with only a non-stressed cover above the bracing where the pad eyes are attached, the whole structure may be considered as a priinary structure. and the design calculations may treat such a container as a monocoque construction.

TD shall not be higher than the (statistically) Lowest daily mean temperature for the area where the offshore container is to operate and in no case shall be higher than -20 "C.

NOTI- For coiitaiiiers with exposed aluiiiiiiitiiii. the dniiger ofsparks catiscd by ihr i i i ipaci ofalui i i i i i iu i i i agaiiisi corroded steel (the tlirriiiire i-caciioii) sliotild he taken iiiio accouiit.

5.2 Structural strength

5.2.1 Gerternl

The required strength of a container shall be determined by calculation and verified by type tests, as described in clause 7.

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STD=BSI BS E N 12077-ENGL I977 iai 1b24bb7 0801825 8i i8 M

Page 7 EN 12079: 1999

5.2.2 Lifting loads

52.2.1 For design loads defined in 5.2.2.2 and 5.2.2.3. no equivalent stress level, 5,. shall excecd the figure as calculated as 5e = 0.85C. wherc:

- for steel: C = Re:

- for aluminium:

- base material: C = Ro.2 for aluiiiiniuin outside the heat affected zone:

- heat affected zone: C = 0.7pRl,,

wherc

RI,, is the tensile strength of aluininiuin: ß is 0,8 for IS0 AIMg4.5Mn-HARAA5083 (H339 see Table 4);

o r is 0.7 for all other aluminium alloys and tempers.

5.2.2.2 Lifiirrg ~ V t h i[jìin,o .set

The design forcc on the priinary struchirc shall be calculated as 2,SRg.

To achieve this the internal load shall be taken as (2.5R - T), evcnly distributed over the container floor. For tank containers. the actual distribution of thc tare mass shall be used for thc calculations.

Pad eyes shall be designed for a total vertical force of 3R,.

The force shall be considered to be evenly distributed between ( n - i ) pad eyes where n is the actual nuniber of pad eyes.

To detcnnine the rcsulting sling force on the pad eyes, the sling angle shall be takcn into account. so that the resulting sling force on each pad eye is calculated as follows:

3Rg ( I ? - 1 ) cos I’

F =

where

F is the resulting sling force, in newtons; I I is the actual nuinber of pad cycs (for calculation purposes 17 shall not exceed 4 and shall be not less than 2 ) : 1’ is the angle between a sling leg aiid the vertical. in dcgrces and shall be assumed to be 45” for dcsign purposes with IS0 10’ containers. For lengths less than i O‘. 1 1 should be defined differently by arrangement between the purchascrímanufacturer.

NOTE Foi- cimtaineis with only one pad eye. that pad eye shall he desigiled for a total vertical foice of.SR,.

The design force on the primary stnichirc shall be calculatcd as I .6R,.

To achieve this thc internal load shall be takcn as ( I .6R - evenly distributed over the container floor.

Where fork pockets are intended only for handling of the empty container, the design load shall be taken as 1 .(,TC.

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Page 8 EN 12079:1999

5.2.3 Impact loads

Impact loads are dynamic loads of vcry short duration. Idcally. dynamic calculations or tests should bc carried out to verify the ability of a container to withstand such loads. Howcver. for most applications it shall be sufficient to carry out simplified static calculations as specified in 5.2.3.2 and 5.2.3.3 and to perform a drop test for vertical impact on corners, in accordance with 7.4.

When simplified calculations are used. and each beam is considered separately, any assumptions concerning support conditions shall be stated.

5.2.3.2 Horizontal impact

The main fraine structure shall be dimensioned to withstand a local horizontal impact force acting at any point. This force may act in any horizontal direction on the corner post. On all other fraine members in thc sides the load may be considered as acting at right angles to the side.

The calculated (static equivalent) stresses due to impact shall be combined with the lifting stresses resulting from static lifting forces ( R J .

Equivalent stresses shall not exceed:

o, = C(see 5.2.2.1).

The following values shall be used for the static equivalents to an impact force:

- for container posts and side rails of the bottom structure: -0 0,25R,:

- for other frame members of the side structurc, including the top rails: -0,15R,.

Maximum calculated deflections at these loadings shall not exceed:

4, - for comer posts and bottom side rails: - 250

where

Z,, is the total length of the rail or post in mm.

I 250

- for other frame members:

where

I,, is the length of the shortest edge of the wall being considered.

NOTE I,, is a (iioininal) reference length aiid will often be difïereiii ti-oiii the actual span ol'a beam For horizontal impact on tank containers for dangerous cargoes see 5.5.4.

5.2.3.3 Vertical inipacf

A vertical impact test shall bc carried out in accordance with 7.4. In addition. the side rails and end rails in the base shall be able to withstand vertical point forces of 0,25R, at the centre span.

BSI 10-1999


EN 12079:1999

Equivalent stresses shall not exceed:

o, = C (see 5.2.2.1).

Calculated deflections shall not exceed L. 250

where

I , , is the total length of the rail.

KOTE Maxitiiiiiii veriical itiipaci forces are likely to occur wiieii a container is lowered oiiio ilie deck ofa heaving supply vessel. If iiie deck is u t an aiiglc. the tirsi iiiipaci will he on a corner. Stich impact fiirccs caiinoi be readily siiiiulated by static forces. As dynamic calculaiions would be very coinpiex. i t is usually sufficient to verify the strength by a veiiical impact test as described in 7.4.

5.2.4 Iiiteviral forces o11 coiitairter walls

Each container wall, including the doors, shall be designed to withstand an internal force of O,W, evenly distributed over the whole surface, without suffering any permanent deformation.

5.2.5 Miitiiiiunt niaterial tirickrress

The following minimum material thickness ( t ) requirements shall apply:

a ) for external parts of corner posts and bottom rails, i.e. parts forming the outside of the container:

for R 2 1 O00 kg, I = 6 min;

for R > 1 O00 kg, t = 4 min;

b) for all other parts of the primary structure: 1 = 4 mm;

c ) for secondary structure made froin metallic materials: t = 2 min;

d ) for waste skips of monocoque design (see 5.1 ) within an area of up to 100 mm from the side edges:

e) for the remaining parts of the side structure: I = 4 mm.

t = 6 m m ;

NOTE The thicknesses may liave to be increased beyond thex values t o take account of special considerations s u d i as rating. design. corrosioii allowances, the need for impaci tests of the inaterial. etc.

5.3 Welding

Essential and non-redundant primary structural menibers shall be welded with full penetration welds. For other primary structure, the use of fillet welds shall be justified by design appraisal (including calculations and consideration of failure modes).

Intermittent fillet welding of secondary structure is acceptable; however, care shall be taken to avoid corrosion.

5.4 Additional design details

5.4.1 Floor

Containers liable to f i l l with water, e.g. open topped, shall have a suitable drainage facility.

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EN 12079:1999

5.4.2 Doors and hatches

Doors and hatches, including hinges and locking devices, shall be designed for at least the same horizontal forces as the priinary structure. Locking devices shall be secure against opening of the doors during transport and lifting. Double doors shall have at least one such locking device on each door, locking directly to the top and bottom frame.

Locking arrangements shall be protected to prevent dislodgement by impact.

Hinges shall be protected against damage from impact loads.

Doors shall be capable of being secured in the open position.

If weathertightness is required, the doors shall be equipped with seals.

5.4.3 Iirternrediate cargo decks

When intermediate cargo decks are fitted they shall be designed to withstand a force of at least O,SP,'f', uniforiiily distributed.

where

Y is the dynamic factor (= 3).

When intemiediate cargo decks are designed to support other than half the total payload, the design requirement shall be calculated accordingly.

5.4.4 iiitertral securing poiirts

Containers for general cargo shall have internal securing points. Each shall be designed to withstand a force of at least 10 kN.

NOTE A iiiiiiiiiiiiin of 12 aie generally required.

5.4.5 Fork liyt pockets

When fitted, fork lift pockets shall be installed in the bottom structure and shall have a closed bottom and top. and pass through the base (sce 9.1).

NOTE I Special reqiiirriiieiits apply for Ioi-k pockets o11 taiik coiitaiiiers for daiigeroiis cargoes; see 5.5.3

NOTE 2 Partial bottom openings inlay be allowed probided the openings are ofsiich a size and located so that i t is iiot possible foi- the fork tines 10 penetrate or seize in tlie opening. or to damage the free edges at the cut-out.

The minimum opening of the fork lift pockets shall be 200 mm x 90 m.

Fork lift pockets shall be located such that the container is stable during handling and driving with a fork lift truck. Container length. height, width and rating shall be taken into account.

Pockets shall be located as far apart as practicable but need not be inore than 2 OS0 min apart from the centre of pocket to centre ofpocket.

If a container is fitted with pockets that are only for empty handling. thc container shall be inarked according to 9.1.

5.4.6 Pad eyes

In order to prevent lateral bending moments on pad eyes, they shall be aligned with the sling to the centre of lift. with a maxiinuin inanufacturing tolerance of I2,S".

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Page 11 EN 12079:1999

Any difference in the diagonal measurements between lifting point centres shall not exceed 0,2 % of the length of the diagonal, or 5 mm, whichever is the greater.

The diameter of holes in pad eyes shall match the shackle used, tolerances between shackle bolt and pad eye hole diameter shall not exceed 6 % of the nominal shackle bolt diameter. However, maximum concentrated stresses at the hole edges shall be below proof stress, R,, at design load.

The tolerance between pad eye thickness and inside width of shackle shall not exceed 25 % of the inside width of the shackle.

Pad eyes shall be so designed as to permit free movement of the shackle and sling termination without fouling the pad eye.

Pad eyes shall not protrude outside the boundaries of the container, and shall as far as possible be designed to avoid damage from other containers. Lifting points shall be positioned on the container to preclude, as far as practicable. thc risk of slings fouling against the container or its cargo during normal use.

Pad eyes shall be welded to the frame with full penetration welds. If the lifting force is transferred through the thickness of a plate having a thickness greater than 25 inni. plates with specified through thickness properties shall be used.

NOTE Where ISO-corner Rrriiigs are iiiouiited in conjwictioii witli pad eyes. tlie coriier fittings are not iiitended for lifting with sliiigs offsl1oir.

5.4.7 iSO-coriierfitíiiigs

Where ISO-corner fittings are mounted to offshore frcight containers thcy shall conform to IS0 I 16 1 .

NOTE Liïtiiip oifSliorr with sliacklcs iii iiiese coriier l itti i igs i s i i t i t ncccpiablr.

5.4.8 Eqiripnient

Equipment on offshore containers shall be designed and installed to withstand the dynamic loading and other environmental forces to which it may be exposed.

The following factors shall be used:

- dynamic factor (load factor) Y= 3;

- design factor against breaking (safety factor) s = 2

NOTE Eqiiipineiit pernianently iiisialled o11 u contaiiier is considered to be part of tlie contaiiier foi. certificatioii purposes.

Any external connections, e.g. a supply of pressurized air, or an electrical connection, shall be protected against dainage.

5.4.9 Coating arid corrnsioii protuctiuii

Offshore containers shall be suitable for the offshore environment by means of construction, use of suitable material andior corrosion and paint protection.

All ofîdiore Container roofs, including those constructed fiom chequer plate, shall be coated with a peniianent non-slip inediuin.

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Page 12 EN 12079:1999

5.5 Tank containers

5.5.1 General

In addition to complying with other relevant design codes and requirements. tank containers shall be suitable for offshore service.

5.5.2 Frante

In addition to the design requirements already specified in this standard. the fraine shall be designed to protect the tank and equipment (valves, man-holes. etc.).

5.53 Tarrks forfluids

Tank design shall confonn to the relevant sections of IS0 1496-3.

Tanks for dangerous cargoes shall fulfil the requirements of the IMDG Code, and shall be designed according to a recognized code for pressure vessels. A tank and its support shall be able to withstand lifting and impact loads. In addition, due account shall be taken of fluid surge arising from partly filled tanks.

NOTE IMDG haue restrictions for loaded handling ol'ianks o f over a certain length. by fork-lift. Reference should he niade t o Chapter 1 3 otilir IMDG Codr.

5.5.4 Inrpacf protection oit tank coittainers for darigerous cargoes

On tank containers for dangerous cargoes, all parts of the tank and fittings shall be suitably protected from impact damage. In addition to the requirements of 5.2.3, the following requireinents apply.

- The top of the tank and its fittings shall be protected by beams, plates or grating and no part of the tank or its fittings shall extend to within 100 mm of the top of the framework.

- It shall not be possible for any part of the lifting set to foul fittings. manhole cleats or other protrusions on the tank.

- Protective beaim shall be placed at or near the location where the tank shell is nearest to the outer plane of the sides. Beams shall be spaced sufficiently close together to give the necessary protection.

- At the inaxiinuin calculated clastic deflection of any side member, the residual clearance between the member and any part of the tank shell or its fittings shall be at least IO min.

- No part of the underside of the tank shell (including sumps), the bottom valves, or other fittings, shall extend below a level 150 mni above the bottom of the framework. Any such part extending to within 300 min of the bottom of the framework, shall be protected by beains or plating.

Tank containers designed with direct connection betwecn the tank and the side or top frame elements shall be subject to special consideration.

5.6 Containers for bulk solids

Bulk containers shall be designed according to the relevant sections of IS0 1496-3 or IS0 1496-4 but shall in addition be suitable for offshore service.

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STD-BSI BS EN 12077-ENGL 2779 I lb2Libb9 0801831 O42

Material thickness t 111111

I < 12 1 2 < t 1 7 5 I > 25

Page 13 EN 12079:1999

Impart test temperature "C

Ti, + 100 TrI TI, - 20

6 Materials

6.1 Steel, general

Thc chemical composition, heat treatment, weldability, mechanical properties and impact energy properties shall be suitable for the purpose. Extra high strength steels. with proof stress above 500 N/niin?, shall not be used.

When materials of different galvanic potential are joined together. the design shall be such that galvanic corrosion is avoided.

Welding consumables shall be according to EN 1 O 1 1 -1. Reconintendations for welding qf'metallic materials - Part 1: General giiidarice, and prEN I O 1 1-2, Recor7iiitenclatioa.~,f~r ivekiiiig of metallic ntateriuls - Part 2: Giiiduiice.JoI-.fer.i.itic steels.

Tensile testing shall be carried out according to EN 10002- 1

In order to avoid initiation of brittle fracture, the steels shall possess adequate fracture energy. Steels for priinary structures shall be tested by the Charpy impact (V-notch) method according to EN 10045- I . Test temperatures shall be as given in Table I.

The average energy absorption for base material specimens with their axis parallel to the final rolling direction shall not be less than given in Figure I . For specimens with their axis transverse to the final rolling direction the valve shall be two thirds of that for longit~idinally orientated specimens.

Specified proof slress in N/mm2 Figure 1 - Charpy V-notch, values for steel

Impact energy in welds or in the longitudinal direction in heat affected zones shall be not less than 27 J at test temperature (Table 1) .

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STD-BSI BS EN L2079-ENGL 1779 m Lb24bb7 0803832 T B B m

C M n si P s Cr max. max. max. max. max.

0,20 0.90 0,50 0,035 0,035 0.25 to IS0

Page 14 EN 12079:1999

Ki Cu MO al so^" max. max. max. min.

0,30 0,20 0,08 0,015 0,70

6.2 Rolled steels in offshore container structures

6.2.1 General requirenierits

Where required, steels for welding shall be made by either open hearth, electric furnace or the basic oxygen steel process. Steels in the primary structure shall be killed and fine grain treated. Only materials with non-ageing properties shall be used.

6.2.2 Groups of steels

Structural steels for the primary structure shall be carbon steel, carbon-manganese steel, carbon-manganese micro-alloyed steel or low-alloyed steel.

For structural members, material grades specified in EN I0025 andior EN 1 O I I3 which meet the requirements in 6.1 and 6.2.1 shall be used.

6.2.3 Steel forgings

When required. forged carbon and carbownianganese steels shall be used in the offshore container struchire.

Such forgings shall be made from fully-killed and fine-grain treated non-ageing steel.

NOTE I r may br necessary to verify tlie non-ageing properties by tesis.

For chemical and mechanical properties of alloy steels, reference shall be made to prEN 10250-2, Open die steel ,forgings,Jor general engineel-iitg yiirposes - Part 2: Non-alloy qualih a i d special streis, and to prEN 10250-3, Open die steel,foi.giiig.r.foi, geite1111 eizginen-iizg piiiposes - Part 3: LOW alloy special stee1.c.. The chemical composition shall be suitable for the thickncss in question. Alloy steels shall be delivered in quenched and tcinpcred condition.

The impact test temperature shall be equal to the design air temperature. TD (see 4 and 5.1 ).

6.2.4 Steel castirigs in ISSO-currier fittiiigs

The tensile strength of ISO-corner fittings (see 5.4.7) made from cast steel shall be not less than 440 Nimm' and the proof stress shall bc not less than 220 Nimm'.

The chemical composition shall be in accordance with that set out in Table 2 and mechanical properties shall bc in accordance with Table 3.

Table 2 - Chemical composition (ladle analysis)" I

(i: HSI 10-1999


Yield strength ROH min.

Nini in'

220

6.3 Aluminium

Tensile strength Elongation Reduction of area Impact energy

min. min. min. at -20 OC

z K j,.I ) RI,, A5

Nimiii' ?/o % J 430 to 600 25 40 27

The chemical composition. heat treatment, weldability and mechanical properties shall be suitable for the purpose.

Alloy

When materials of different galvanic potential are joined together, the design shall be such that galvanic corrosion is avoided.

Temper

Aluminium alloys used in offshore containers shall be made by rolling or extruding. Aluminium alloys and tempers specified in Tables 4 and 5 may be used. Use of other alloys or tempers shall be subject to special consideration.

IS0 209-1 AA ISOIAA AIMg 2,5

AlMg 3

AlMg 3 3

AlMg 4

AIMg 3 Mn

AIMg 4,5 Mn

AlSiMgMn

NOTE AA = Aiiieriran Aliiiiiiiiitiiii Association.

I 5052 HCWH36

H M H 3 2 HBWH34

HAWH32 HBWH34

HARM32 HBWH34

HAR"32 HBWH34

HAWH32 HBR/H34

TBIT4 TEITS TFITó

5754 010

5154 010

5086 O10

5454 O10

5083 010

6082 O10

Tliesc i-efereiices are ¡iicIuded for inforniaiion as users iilay encounier these refe~-eiices in

HAWH32 HBWH34

IC BSI 10-1999


EN 12079:1999

Alloy IS0 209-1 A A

AlSi 0.5 Mg 6063

AlSiMgMn 6082

Tenlper ISOíAA

TBIT4 TFITó TFITh

6.4 Non-metallic materials

Timber. plywood, fibre reinforced plastics, and other non-metallic materials shall not be used in primary structures.

NOTE Coiisiderari»ii should be piveii to sireiigih. dtii-ability. suiiabiliiy. and possihle Iiarards catiscd by tise ol'iliese iiiatci-ials

6.5 Material inspection documents

Materials used for the construction of offshore containers shall be furnished with documentation in accordance with Table 6. All materials for primary structures shall be identifiable against the certificates.

Table 6 -Documentation of materials Structure Documentation according In E\ 10204

Inspection certificate 3.1.9 Inipection certificate 3.1 .C ISO-cometfiaings X

Pad eyes X Other primary structural X

Secondary structural X inembers

meinbcrs

7 Type testing

7.1 General

Any change of design, specification of inaterial and method of manufacture outside normal manufacturing tolerances. which may lead to a modification of the mechanical properties defined in this standard, shall rcquirc that the relevant type tests are carried out on the modified container.

NOTE I Type tesis demonstrate tliai offshore contaiiiefs certified as coiiforiiiiiig to the i-equireiiieiits of t h i s staiidai-d possess the nirctiaiiical properties specified. The p ~ i i ~ o s e of iliese tesis is io prove the desigii. niairirial and iiietliod of iiiaiiiifacitii-e

A container selected for type testing shall be represcntative of the production units and not a hand built prc-production development container. I t shall be built in conformity with plans and data and using tooling comparable to those planned for subsequent production. The tests described in 7.3 and 7.4 are required for all offshore container types. and shall be considcrcd as design requirements.

NOTE 2 Type testiiip may not replace desigii review. hui may i i i certain cases he a paiiial subsiiitite foi- streiigtli calculations. Noii- destruciive exarnii2atioii ( N D E ) iiiay he required after iesiiiig.

The test inasses shall normally be evenly distributed inside the container. If it is not possible to place all the test mass inside the container, some of it may be placed outside or under the container. provided that this gives a loading on the structurc siinilar to thc distribution of the container loading in operating condition.

Ifthe container has an additional cargo deck. the test load shall be evenly divided between the floor and the additional deck, see 5.4.3. If the additional deck is removable, it will be necessary to carry out the test with the test load divided between the additional deck and thc floor. as well as with the whole test load on the floor.

c BSI 10-1999


STD-BSI BS EN 12077-ENGL 3777 Ipt Lh24bb7 0803835 777 E

Page 17 EN 12079: 1999

7.2 Test equipment and verification

7.2.1 Geiieral

The force shall be applied using calibrated weights and lifting the container by a lifting appliance or by means of a suitable test rig.

7.3 Lifting test

7.3.1 Geiieral

The container shall be lifted by a lifting set with an angle to the vertical equal to the design angle. The lifting set normally fitted to the container shall not be used.

The container shall be carefully lifted in such a way that no significant acceleration forces occur. It shall be held for 5 min before measurements arc taken.

7.3.2 All-poiiìt liftiitg

The container shall be loaded to a total gross mass of 2,5R and lifted using all the pad eyes.

NOTE The test load inay he ohiained by putting in an internal test niass of2,5R-T.

No deflections during testing shall be greater than 1/300 of the span of the member. The offshore container shall show no permanent deformation or other damage afier testing.

7.3.3 Two-paint lifting

An offshore container fitted with four pad eyes shall also be liftcd from only two pad eyes, situated diagonally opposite each other, with a total mass of 1 S R .

NOTE This can he achieved by putting in an internal test n i a s of ISR-T.

After the test there shall be no permanent deformation.

7.4 Vertical impact test

The container, with its internal test mass corrcsponding to payload P, shall be either lowered o r dropped on to a workshop floor of concrete or other rigid structure.

NOTE i This floor may be covered with a sheathing of wooden planks with a thickness not exceeding 50 iiim

NOTE 2 If the Container i s lowered froiii a ci-aiie, the suspending wire and hook may dampen the inipact conipared to a free-fall drop test Therefore the impact speed should be greater ifTa lowering test is tised.

In both cases, the container shall be so inclined that each of the bottom side and end rails connected to the lowest corner forms an angle of not less than So with the floor.

However. the greatest height difference between the highest and lowest point of the underside of the container corners need not be more than 400 inin.

The impacting corner shall be the one expected to have the lowest rigidity.

NOTE 3 On closed dry cargo containers this will norinally he at the door end.

No significant permanent damage shall occur

NOTE 4 Cracks i n welds and iiiinor deforiiiatioiis iiiiiy he repaired.

C BSI 10-1999


STD*BSI BS EN 12079-ENGL 1799 Lb2LibbS 080L83b b23 I

Page 18 EN 12079: 1999

One of the following procedures shall be carried out.

a) Drop rest

An internal load equal to the payload ( P ) shall be safely secured and the container shall be inclined as described above.

The container shall be suspendcd from a quick release hook. When released. the container shall drop freely for at least 50 inin to givc it a speed at initial impact of at least I ids.

b) LoMwing tes1

An internal load equal to the payload ( P ) shall be safely secured and the container shall be inclined as described above.

The container shall be lowered to the floor at a constant spccd of not less than 1.5 id s .

NOTE 5 WARNING Tliese tests niay cause coiisidei-able ti'eiiioi's in h e biiildiiig!

7.5 Other tests

When required other tests shall be carried out for containers of unusual configuration. These shall be agreed in advancc with the certifying body.

Tanks for dangerous cargoes shall in addition be tested according to the requirements of the IMDG Code.

8 Production

8.1 General

Production shall be performed according to approved drawings, specifications and procedures.

Production documents according to this standard shall be prepared and approved before production starts.

The inanufacturer shall ensure the quality of his procedures and facilities through operation of a quality assurance system at least in accordance with EN IS0 9002.

8.2 Primary structure

8.2.1 Getieral

During production and on the finished product it shall be possible to identify the inaterials uscd for the primary structure and link them with the corresponding documentation.

8.2.2 Approved welders

Welders shall be approved in accordance with EN 287

8.2.3 Weldìtig procedures

Approved wclding procedures shall be uscd for the welding to be carried out on the primary structure.

Preliminary welding procedure specifications shall fonn the basis for the preparation of welding procedure tests.

Welding procedure specifications. welding procedure tests and approval of welding procedures shall be in accordance with relevant clauses of EN 288 and with the requirements stated below.

1s. BSI 10-1999


STD*BSI BS EN 12077-ENGL 1797 Sll l h 2 4 b b 9 0803837 5bT II

Category of member

Primary A: essential/non- redundant Priiiiary B: Other

Page 19 EN 12079:1999

Impact tests are required as part o f the welding procedure tests. Test temperatures and test results shall comply with the requirements given in 6.1 including Table 1. For t > 12 mm four sets of impact tests shall be made: one set in the weld metal, one set at the fusion line, one set in the heat affected zone (HAZ), 2 inm away froin fusion line and onc set 5 mm away from fiision line.

Type of joint T y r of examination

I II 111 I V Visual examination Magnetic particle Ultrasonic Radiographic

examination I’ examination’’ examination

butt welds 100 Yo 20 Yo 100 % I O Yo T-joints 100 Yo 100 Yo IO0 %

T-j ointsífil let 1 O0 Yo 20 Yo 20 O/o butt welds 100 % 20 O/o 10 Yo

welds

8.2.4 Iitspection of welds

Secondary all types

8.2.4.1 General

100 Yo

Welds shall be subject to visual inspcction for primary and secondary structures, and other non-destructive cxaniination (NDE) for primary structure.

Visual inspection shall be performed as described in EN 970.

Othcr NDE methods shall be chosen with due regard to the conditions influencing the sensitivity of the methods. Unless otherwise agreed. structural welds shall be exainined as stipulated in columns I to IV in Table 7 with those in columns III and IV being employcd in the event that such is required and practicable.

The percentages specified in Table 7 shall apply to the total length of weld for the type of structural assembly in question.

When fuel gas welding is applied. ultrasonic and magnetic particle examination shall be required in addition to radiographic examination.

I P Ö T E The categories applicable tn the striicttiral members shall be agreed with the certifying hody in each case.

Procedurc specifications for NDE-methods shall be establishcd and followed.

NDE operators shall be capable of performing a satisfactory operational test under production conditions using a qualified procedure appropriatc for the NDE method and welded joints in question.

NOTE Docuiiientaiioii of adequate coiiipeteiice based on recognized qualificatinii schemes inay be required.

The NDE operators shall issuc reports describing the weld quality. The reports shall distinguish clearly between acceptcd and rcjected welds. and the number of repairs carried out to meet the specified acceptance standard shall be stated. The inspection report shall specify the NDE inethods and procedures and incliide all NDE- parametcrs necessary for a proper assessment

P BSI 10-1999


STD*BSI BS EN 22074-ENGL 1999 l b 2 4 b b 9 0801838 4Tb I

Page 20 EN 12079: 1999

8.2.4.3 Weld acceptance criteria

The soundness of welded joints shall conforin to the recognized standard regulations o r rclevant rules foi acceptability of weld imperfections.

8.3 Secondary structure

The fabrication procedure shall reflect the requirement that the secondary structure shall prevent cargo from falling out of the offshore container and, if required, prevent water froin entering.

The welding of the secondary structure shall be according to EN 288.

8.4 Production testing

8.4.1 Lqtittg tesf

During the production of a batch of offshore containers, some, selected at random, shall be submitted to the all- point lifting test described in 7.3.2 and shall meet all specified requirements.

The number of containers to be tested shall be agreed in advance and is dependent on the total number in the production series. Table 8 shall be used to determine the minimum number of containers to be tested which shall include the container which was type tested.

I to 5 6 to IO 11 to20 21 to 40 240 "The quantity pivrii iiicludrs the coiitaiiier which was type iested.

8.4.2 Wentlievproofrtess tesrittg

If a type of offshore container is specified to be weatherproof, the following weatherproofness tests shall be carried out.

For the prototype and I O YO of the containers in a production series. the test shall be carried out in accordance with the weatherproofness test specified in IS0 i 496- i .

For the remaining containers, the water test may be replaced by a simple light test for which the inspector shall procede as follows.

- Enter the container, require the doors to be closed closed and allow sufficient time to become accustomed to the darkness (at least 3 min).

- While a powerful light is directed at all external surfaces, examine the interior of the container for light penetration.

-- No light penetration shall be observable with the naked eye or with normally corrected vision.

NOTI- Appropriate probision sliould be iiiadr io ei1siii.e t l iai illere i s no risk in the Iiealili aiid safriy n f t l i e inspectoi-.

8.5 Failure of production containers

In the case of failure of any container to meet either the weld acceptance criteria (see 8.2.4.3) or the lifting test requirements (see 7.3.1 and 8.4.1) the manufacturer shall identify the cause of failure and rectify all affected containers. The recertified containers shall then be re-inspected andior re-tested.

'< HSI 10-1 999


EN 12079: 1999

9 Marking

9.1 Safety marking

The tops of closed containers and tlie top rails of open and frained containers shall be inarked as follows.

- Closed containers shall be inarkcd with a band of solid contrasting colour not less than 1 O0 mm wide round the roof perimeter: if the roof of the container is recessed below the top periineter rail, at least the top surface of the top rail shall be marked.

-- Open and framed containers, shall be marked with hatching in a contrasting colour on the top rails.

Where a container is fitted with fork pockets designed for handling the container only when empty (e.g. on soinc tanks and long baskets), then thc words "einpty lift only" shall bc clcarly displayed near each set of fork pockets in characters not less than 50 inin high.

hOTE Aliiii i i i i i i i i i i coiitaiiicrs i i iay need to be specially iiiarked i o wurii oftlie dniigcr of spi-kiiig (see 5.1 ì. The iuxmiiiieiidcd iiiarkiiig is "nluiiiiniiiiii cmiaiiier" on a11 foiir sides i i i letters at least 75 iiitii high.

9.2 Identification markings

Each container shall be marked with a container nuinber issued by thc owner as a unique identification which shall be the coininon cross-reference on all in-service certification, shipping documentation. etc.

The containcr iiutnber shall be proinincntly displayed on all sides of the container (as viewed froin ground Icvcl) in characters of a contrasting colour. not less than 75 mm high.

NOTE 1 For opcii sided coiilaiiiers i t i i iay be iiccessary to attach paiirls speciiically io carry the coiiiaiiier niiiiibcr.

If a container has a roof, the container nuinber shall be displayed on the roof, in characters 300 inin high or niore.Wherc character size is restricted by the available space they should be as large as practicable. The marking shall be carried out in such a way as to avoid incorrect interpretation ( e g by underlining). Where applicable the lower edge of the marking shall be positioned near the side of the container in which the door is located.

NOTE 2 li1 escrpiioiial eirctiiiistaiices the owiier niay change the cotitaiiier nuiiiber aiid re-mark the coiitaiiiei- accordingly. 1 i i ihis case tlie iiispeciioii plaie should he replaced ~claiise I O ) aiid the certificate ol'coiiforniiiy revised (clause 1 I ) .

9.3 Information markings

On each container a matt black square not less than 400 inm x 400 min shall be provided for information markings such as destination. cargo hazard. etc. This shall be located on one door (where fitted) or on tlic side of a container without doors.

NOTE Wheit the owiier is a Ieasiiig o r reiitiil coiiipiiiiy. the words "o11 Iiirc to ..." iiiiiy appear across i l ie top i o ideiiii ly tlic ~iser

Immediately below the matt black square the maxiinum gross mass. the tare mass, and the payload (in kilograms) shall be displayed in characters o f a contrasting colour not less than 50 inin high.

Any additional inarking for electrical hazard classification (C.D. zone inarking), including thc letter symbol for earth connection, shall be displayed in this location.

If a container is used to transport dangerous goods, the requirements of the IMDG code regarding hazard warning labels shall be followcd.


STD-BSI BS EN L2077-ENGL 1797 ad Lb2LibbS 0803840 054 S

Page 22 EN 12079: 1999

9.4 Other markings

If the container is fitted with an interinediate deck the payload of the deck shall be displayed on the inside of the container in a position where i t is clearly visible at all times. in characters of a contrasting colour not Icss than 50 inm high.

The user of the container may add additional inforniation marking. such as owner’s naine. etc. Howcvcr. to avoid niisinterpretation. additional marking shall be kept to a ininimuin.

10 Plating of containers

10.1 General

Containers shall be fitted with plates carrying the iiifonnation specified in 10.2 and 10.3.

Where two plates are employed. they shall be termed “the information plate” and “thc inspection platc“

The data may be combined onto a single plate, termed “offshore container data plate”, but shall still carry ali the iiiformation specified in 10.2 and 10.3.

Plates shall be made of corrosion resistant inaterial securely attached externally in a manner designed to avoid unauthorized or accidental removal. The plates shall be fitted to a door. or, on containers with no doors. in a proiiiirient position.

Aluminiuiii rivets have been found to be unsuitable as a fixing method in the offshore environment and shall not be used.

The information on the plates shall be in thc English language.

NOTE Piovicioii for aii addiiioii:il laiigiiagc iiiay br iiiade.

The text shall be pennancntly and legibly marked on the plates in characters not Icss than 4 min in height.

10.2 Information plate

The plate shall be headed “offshore Container data plate. E N 12079”

The plate shall contain the following information:

- fabricator’s serial nuniber;

- inaxiinuin gross mass i n kilograins, at the design sling angle;

- tare inacs in kilogranis;

- payload in kilograms. and interinediate deck payload (if applicable):

- certificate number;

.~ design temperature.

NOTE A rrcoiiiineiided foriiiat foi. the platc is sliowii i t 1 Figtit-e 1.

( BSI 10-1999


STD-BSI BS EN 12079-ENGL 1797 PB Lb2LfbbS O B O 1 B L f l T90

Page 23 EN 12079: 1999

Offshore Container Data Plate EN 12079

Fabrication no. Maximum gross mass: kgat O

Payload: Tare mass: kg

Container kg Intermediate deck kg

Design temperature: "C Certificate no.

Figure 2 - Information plate

10.3 Inspection plate

The platc shall be headed: "offshore container: inspection data".

The plate shall contain the following information:

- owner's container number (sec 9.2);

- owner's name and international telephone number(s);

- . date of last inspection.

To avoid confusion, the plate shall not cany the date of the next inspection. Provision shall be made on the plate to facilitate permanent marking to record a minimum of nine inspections.

NOTI! A recciiiiiiieiided foriiiat foi- the plate i s cliown in Figure 3 .

Offshore Container Inspection Data Container no.: Owner: Tel.: +

+ + +

Inspections:

I I I I

Figure 3 -Inspection plate

10.4 Date of last inspection

This shall be the date on which the most recent inspection was carried out to the satisfaction of a competent person.

Together with the date, the followirig shall also be pennanently marked. Either:

- suffix T: indicating proof load tcst, non-destructive examination, and visual examination; or

- suf'fix VN: indicating non-destructive examination and visual examination: or

suffix V: indicating visual examination only, and the unique identification mark of the competent person.

The inspection schedule shall be as laid down in 12.2.1.

( HSI 10-1 999


EN 12079: 1999

1O.S Marking on the plate

The plate shall be marked permanently iininediately after the inspection is carried out.

NOTI! Contaitiers with less t l ia i i 30 days ctirrciicy of certificaiioii sliotild not be shipped io any oïïsli«re iiistullatinii. excepr hy prior a_«reciiieiii with ilie sliippei-.

11 Certificate of conformity

i 1.1 General

All containers to be used offshore shall be issued with a certificate ofconformity to this standard.

The certificate shall be retained by the owner.

In addition, certificates of examination and tests shall be issued as described in 11.2.

Containers. which are required to coinply with the requirements of the JMDG code, shall also be certified in accordance with the IMDG code.

Each container shall have its own fabrication nuinber.

11.2 Documentation

The certificate of confomiity shall be based on the following documentation collated in an “as built” dossier. which shall be retained by the fabricator for at least 5 years:

- structurai calculations:

- drawings including a gencral arrangcinent drawing;

- specifications for welding proccdurcs (WPS):

- welders’ certificates;

- material inspection documents;

- report on traccability of inaterials;

- report fi-om fabrication inspection;

-- report froin dimensional control:

- report from non-destructive examination (NDE);

- report from prototype testing:

- report from proof testing;

- report from final inspection.

NOTE I t is recoiiiinended tliai inforniution linni ilie “as btiilt dossiri” t l ia i is iioi coiisidcred coniniei.cialiy seiis\iiw sliould be copied io i l i e owner. \\,tio slioitld rciaiii i t fi^ the l i l i of tlic coiitainci’.

RSI 10-1409


STD-BSI BS EN 12077-ENGL 1197 H Lb2qbb7 08018q3 8b3 E

Page 25 EN 12079:1999

11.3 Contents of the certificate of conformity

The certificate of conformity shall contain the following information:

- container fabrication number;

- the certificate number;

- description of the container, including:

- external dimensions;

- number of lifting points:

- name of fabricator:

- inonthiyear of fabrication;

- maximum gross inass in kilograms;

- tare mass in kilograins;

- payload in kilograms;

- reference to the as built dossier;

- the total gross mass in kilograms applicable to the all points lifting test (sec 7.3.2) and the actual method of test;

- angle of lifting set legs (from vertical);

- shackle bolt diameter:

- conformity io other requirements and/or codes:

- a statement that the container described has been designed. fabricated and tested in accordance with EN 12079;

- remarks;

-- signature on behalf of the certifying body.

12 Periodic examination, tests and repairs

12.1 General

The owner or his appointed rcprescntative shall retain the current certification for each container. arrange for periodic inspection, record substantial repairs. modifications or changes in identification. etc.. and maintain adequate records to ensure the traceability of equipment.

All periodic examinations and tests shall be carried out by an inspection body meeting the requirements of EN 45004.

NOTE Guidance as to the recoiiinirnded knowledge aiid expeririicc o f staff responsible foi. incpeciioiis for the puipoces o f scliedole 7.2 of E N 45004 are giveii in annex A.

The inspection body shall refer to the certificate of conformity and the last inspection report before carrying out a periodic examination o r test.

12.2 Inspection, test and repairs on the container

12.2.1 Schedule of exantination and tests

Containers shall be periodically examined and tested in accordance with the schedule listed in Table 9.

NOTF The iiispeciioii body inay require otliei. or additional tests and exainiiiations

.i BSI 10-1999


EN 12079: 1 999

Time or interval

Initial certification At intervals not exceeding I2 inonths At intervals not exceeding 60 months ( 5 years) After substantial i-cpair or alteration"

When the schcdule requires a lifting test. tlic non-destructive exaiuination and thorough visual exainination shall both be carried out after the lifting test.

Test/exa minat ion Lifting test Non-destructive Thorough visual Suffix to be marked on

examination (NDE) of examination plateíl0.4) pad eyes

Yes Yes Yes T At the discretion of At the discretion of Yes T or VN or V the inspection body

At the discretion of Yes Y e s T or VN the inspection body

Yes Yes Yes T

the inspection body

12.2.2 Liftittg test

The lifting test shall be carricd out as described in 7.3.1 and 7.3.2.

The container shall show no significant pennanent defoniiatioiis or other dainagc after the test.

12.2.3 Noir-destructive exnntirtntion (NDE) of welds

The NDE of welds on pad eyes and adjoining structures shall be carried out according to coluinn I1 of Table 7 .

NOTE .Aiteriiniive or additioiiai rx:i i i i i i iai i i i i i accoidiiig io coiiinin i11 oi- IV tiiay be required by tlic i i ispeciioii hody.

The inspection methods and the quality of the welds shall be described by the NDE operator and included in the inspection report.

12.2.4 Tl io~ .~ igI i visunl exanriiratiorr

12.2.4.1 Geneiul

The thorough visual examination shall be of the exterior and the interior of the containcr to ensure that the coiitaincr is fit for its intended use. All load bearing parts. especially the base structure, shall be examined.

The exaniination shall be carried out in a situation providing sufficient lighting and other facilities necessary to allow the exainination to be carried out safely and effectively. The facility shall include a suitable means of lifting and supporting the container for the purposes of inspecting the underside.

The markings and plates shall be checked to ensure that they ineet the requirements of this standard.

Welds in the primary stsucture shall be visually exainincd to ensure freedoin from visible defects.


EN 12079: 1999

12.2.4.4 Pad -.es and lashing poitits

All pad eyes and lashing points shall be visually examined for distortion, mechanical damage or any other sign of distress or overload.

12.2.4.5 Sttwctio-e

The structure shall be visually examined for corrosion, mechanical damage or injurious deformation.

Doors, frames, seals, hinges, locks, etc., shall be visually examined and functionally checked to ensure that they operate in a satisfactory manner without undue force being required.

12.2.4.7 Floor

The floor shall be visually examined to check that it is not deformed and that it shows no signs of distress or overload. Drainage facilities. where fitted, shall be examined, e.g. drain holes shall be clear of debris.

12.2.5 Markiirg of the inspectinti plate

On satisfactory completion of the examination andior test(s), the plate shall be marked as specified in Table 9.

12.2.6 Inspection report

When. in the opinion of the inspector. a container is suitable for service an inspection report shall be issued. This report shall show the following information (as a miniinuni):

-- container identification (including owner's container number);

- owner's name, or delegated nominee;

- certificate number;

- the total gross mass i n kilograms applicable to the all points lifting test and the method of test (where relevant):

- details of NDE carried out (where relevant);

- a statcinent that the container dcscribed was thoroughly examined and that the particulars are correct;

- reference, where appropriate. to any report issued to the owner arising froin the test/inspection process;

-- confirmation that the inspection plate was marked;

- date o f examination (date of signature or report also to be shown if different from date of examination);

- name of organization and the signahire and unique identification mark of the person carrying out the examination.

Any defect or deviation from the requirements of this standard shall be recorded.

The report. signed by the inspector, shall be issued to the owner.

NOTE I Details of the examination of the lifting set niay also be given on the iiicpection repoit for the container.

NOTE 2 This repoit iiiay be combined with the initial ceiiilicate ol'c«nforniiiy.

NOTE 3 The report niay ref'er to the reasons fbr failurc and any rccoiiiiiieiided corrective action. or notc that the contailier is accepted foi use. hiit is to be kept tinder close scrtitiiiy.

C BSI 10-1999


STD-BSI BS EN 12079-ENGL 1979 gI lb24bb9 UBU1BLib 572 I

Page 28 EN 12079: 1999

12.2.7 Danrage arid repair procedures

The owner shall ensure that the container is maintained in accordance with this standard. However, if the user or any of his agents detects any structural daniage or corrosion which may affect the load bearing integrity of the container, they shall immediately contact the owner to make arrangcments for repairs to be carried out. Adequate arrangements shall be made for the safe transportation of the damaged container to the location agreed with by the owner.

The container shall not be used until it is repaired and inspcctcd by an inspection body.

Repairs of thc load bearing structure of a container shall be carried out in accordancc with the requireinents for design and manufacture of containers set out in this standard. The repairer shall ensure the quality of these procedures and facilities by a certified quality assurance system at least in accordance with EN IS0 9002.

The owner shall provide the inspection body with ful l details of repairs which have been carried out.

After completion of repairs, the container shall be inspected and. where relevant. tested by the inspection body in accordance with Table 8. Any modification will require re-certification of the container by a certifying body.

d BSI 1 O- I099


STDoBSI BS EN LZU79-ENGL 1979 LbZLibbS 08018Li7 Li09 I

Page 29 EN 12079: 1999

Annex A (informative) Recommended knowledge and experience of staff responsible for inspection of offshore containers

Contain ers

With respect to containers, the inspector should have, as a minimum. a knowledge and adequate practical experience of:

- the statutory requirements relating to offshore containers;

- the provisions of this standard;

- the various types of offshore containers in service;

- the correct methods of slinging and handling offshore containers;

- the loads, stresses and strains affecting containers when handled under adverse offshore conditions, particularly those affecting lifting points;

- methods of testing containers;

- defects likely to be found in containers and acceptable levels of wear, distortion and deterioration in relation to safety in use;

- welding methods and procedures and qualifications of welders;

- the various methods of non-destructive examination (NDE) and a good understanding of how they work and their limitations;

- the thorough visual examination as required by this standard and the signs of weakness and defects to look for.

Annex B (informative) Guidance on pre-trip inspections

Immediately before transporting a container offshore. and before its return, the container should be inspected by a responsible person appointed by the user.

The responsible person should check the validity of the certification by reference to the inspection plate, and verify that the container, including its lifting set, is free from obvious defects rendering it unfit for use.

The responsible person should confirm, by signature and date (e.g. on the shipping manifest), that the inspection has been carried out to his satisfaction.

Records of inspections should be retained by the user for a period of at least 60 days.

Annex C (informative) Bibliograph y

IMDG Code, International mar,irime dangrroirs goods code. UKOOA, United Kingdom Offshore Operators Association. DNV Certification Notes No. 2.7- 1, May 1995, Off~lioip containers.

C BSI 10-1999

~


BS EN 120'99:1999

BSI 389 Chiswick High Road London w4 4AL

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BS EN12079 1999 Inspection and Testing of Offshore Container

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Transcript of BS EN12079 1999 Inspection and Testing of Offshore Container