CP83_Part2_2000

- Singapore Standard CP 83 : Part 2 : 2000

CODE OF PRACTICE FOR CONSTRUCTION COMPUTER-AIDED DESIGN (CAD) PART 2 : CAD SYMBOLS

AMENDMENT NO. 1 August 2004

1. Page 7, Clause 2

Delete 'Electrical' under the mechanical & electrical engineering symbols.

2. Page 35 to 64, A.3.2

SS 202 (1 3 parts) - 'Specification for graphical symbols for diagrams' has been withdrawn and replaced by the current IEC 6061 7 database.

As CP 83 : Part 2 contains electrical symbols, users are encouraged to subscribe to the IEC 6061 7 database 'Graphical symbols for diagrams' at http://dom2.iec.ch/iec60617.

Delete the entire subclause on electrical symbols.

CP 83 : Part 2 : 2000

Contents Page

Foreword 6

CODE OF PRACTICE

1 Scope and objectives 7

2 2D Symbols 7

ANNEXES

A 2D symbols 8

A. 1 Architectural symbols 8

A.2 Civil and structural engineering symbols 20

A.3 Mechanical and electrical engineering symbols 2 1

CP 83 : Part 2 : 2000

Foreword

This code was prepared by the Technical Committee on Construction Industry IT Standard under the direction of the Information Technology Standards Committee.

This first edition of this code was approved in January 2000 but its publication was withheld due to an immediate review of the code. Such a review was done because of feedback from users and vendors as a result of the implementation of the CAD Symbols Library Software.

This revised Part 2 of the code contains only symbols. Abbreviations and other drawing conventions have been removed to form Part 4 of the code. All architectural symbols have been simplified to ensure that they can be plotted on drawing paper at 1:100 scale. Furthermore, symbol naming and CAD layers have been made more consistent.

This revised code was also prepared with reference to some parts of CP 6: 1978 - 'Code of practice for building drawing'.

The use of computer-aided design (CAD) has been extensive and is still growing in the construction industry in Singapore. The ability of CAD to allow reuse and sharing of information will contribute greatly to the productivity in building design and construction, which involves extensive information and co-ordination between all parties in building industry.

CAD files in the form of digital drawings are now a common medium of data exchange between all parties in building industry and the building authorities. The development of a set of CAD symbols for use by all bodieslparties is a component in fully realising the potential of CAD for more efficient work and communications.

This code establishes a set of generic symbols to be used by all parties in building industry who are involved in preparing and using technical documentation by means of CAD systems. It is envisaged that the set of generic CAD symbols in this code will be revised and updated regularly to adjust to changing in CAD technology.

Reference was made to symbol libraries from various standards organisations. Many symbols in this code are also contributed by consulting firms, contractors and members of professional institutions. Acknowledgement is made to these organisations that have given their permission to use the information in this code.

NOTE

1. Singapore Standards are subject to periodic review to keep abreast of technological changes and new technical developments. The revisions of Singapore Standard are announced through the issue of either amendment slips or revised editions.

1 2. Compliance with a Singapore Standard does not exempt users from legal obligations. I

CP 83 : Part 2 : 2000

Code of practice for construction computer-aided design (CAD) - Part 2 : CAD symbols

1 Scope and objectives

This code recommends a common set of symbols to be used by all parties in the building industry in the preparation of drawings.

The objectives of this code aim to do the following:

To provide a standard set of 2D graphical symbols to represent entities of building components for the building industry.

To facilitate common understanding and interpretation of information in drawings by different users of the building industry.

To facilitate easy and efficient exchange of information

2 2D symbols

2D symbols represent entities of a building object in a drawing. They are drafled at 1:1 scale and are stylised for 1:100 drawings. 2D symbols are classified into three main categories and are found in Annex A.

Architectural symbols Doors Windows Site and external works Plumbing and sanitary fixtures

a Culinary and cleaning equipment 0 Landscape and tree planting

Civil and structural engineering symbols

Mechanical & electrical engineering symbols Air conditioning Electrical Fire protection Plumbing and sanitary Gas

It is recommended that the file names of the symbols implemented on computer aided design platform follow the DOS file format of 8.3. The file naming convention of the symbol will follow the CAD Layer naming convention.

CP 83 : Part 2 : 2000

Annex A

2D symbols

A.1 Architectural symbols

A.1.1 Doors

No.

1.

2.

3.

4.

- 5.

- 6.

- 7.

-

bescription of symbol Single leaf single swing door

Single leaf double swing door

Double leaf single swing door

Double leaf double swing door

Double unequal leaf single swing door

Roller shutter door

Collapsible gate

3raphic image (2D .epresentation)

Layer for insertion

??-DOOR----E-

Symbol name

DOORl OOA

DOORl OOB

DOORRSHT

DOORCLGT

CP 83 : Part 2 : 2000

- No. - 8.

- 9.

- 10.

- 11.

- 12.

- 13.

Description of symbol Side hung folding door

Centre hung folding door

Revolving door

Single leaf sliding door

Two leaf sliding door

Four leaf sliding door

A.1.2 Windows

No. I Description of

Horizontal pivot hung casement window

Graphic image (2D representation)


Layer for insertion

Layer for insertion

Symbol name

DOORSHFL

DOORCHFL

DOORREVO

DOOR1 LSL

Symbol name

No.

3.

4.

5.

6.

7.

8.

9.

10.

- 11.

-

Description of Graphic image (2D symbol representation) Top hung casement ~ indow

Side hung left hand casement window

Side hung right hand casement window

I

Adjustable louvre window

I

Fixed louvre window I

I

Horizontal sliding

Vertical sliding window r===i

-ayer for insertion

??-WIN D----E-

symbol name

VINDTHCC

CP 83 : Part 2 : 2000

A.1.3 Site and external works - No.

- No.

Description of Graphic image (2D symbol representation) Park bench

E Z

Dust bin

Garden (external) light fixture

Plumbing and sanitary fixtures

Single tap combined outlet

Twin tap

Shower head

Drinking fountain - Pedestal type

Layer for insertion

Layer for insertion

Symbol name

SITEPKBH

Symbol name

CP 83 : Part 2 : 2000

No.

6.

7.

8.

9.

10.

11.

12.

13.

14.

Description of symbol Drinking fountain -

Drinking fountain - Wall type

Wash basin - Rectangular plan view

Wash basin - Rectangular front view

Wash basin - Rectangular side view

Wash basin - Oval plan view

Wash basin - Oval front view

Wash basin - Oval side view

Wash basin - Corner plan view


r-rrrrl

Layer for insertion

??-SANIFIXR-E-

??-SANI FIXR-E-

??-SAN I FIXR-E-

??-SANI FIXR-E-

??-SAN I FIXR-E-

??-SANI FIXR-E-

??-SAN I FIXR-E-

??-SANI FIXR-E-

Symbol name

CP 83 : Part 2 : 2000

No.

15.

16.

17.

18.

19.

20.

21.

22.

23.

Description of I Graphic image (2D symbol Wash basin - Vanity plan view

representation)

Sink - Laboratory plan view

Sink - Single bowl single drainer plan view

Sink - Single bowl double drainer plan view

Sink - Double bowl double drainer plan view

I

Bidet - Pedestal plan view I

I

Bidet - Pedestal I front view

Bidet - Pedestal side view

Water closet - Squat plan view

Layer for insertion

??-SANIFIXR-E-

Symbol name

SANl WBVP

CP 83 : Part 2 : 2000

Squat front view

Water closet - Squat side view

Water closet - Pedestal plan view

Water closet - Pedestal front view

Water closet - Pedestal side view

I Water closet - Wall I hung plan view

n

I

Water closet - Wall 1 hung front view

1

Water closet - Wall I hung side view

Water closet - Close coupled plan view

X

Layer for insertion

??-SANI FIXR-E-

??-SANI FIXR-E-

??-SANI FIXR-E-

??-SANI FIXR-E-

??-SANI FIXR-E-

Symbol name

SANIWCSF

CP 83 : Part 2 : 2000

- No. - 33.

- 34.

- 35.

- 36.

Description of I Graphic image (2D symbol Water closet - Close coupled front view

representation)

Urinal -Wall hung plan view

Water closet - Close coupled side view

n

Urinal -Wall hung front view

I

Long bath - Plan

n

Urinal -Wall hung side view

view I

n

Long bath - Side view

Long bath - Front view

Square bath - Plan

EJ

view

Layer for insertion

??-SANIFIXR-E-

Symbol name

SANIWCCF

SANIURWF

SANIURWS

SANILBSP

CP 83 : Part 2 : 2000

Description of I Graphic image (2D symbol I representation) Shower bath - Plan I view I

- Multiple show unit - Plan view

view Foot bath - Plan

A.1.5 Culinary and cleaning equipment

I

- No. - 1.

- 2.

- 3.

view

Description of symbol Wash trough / laundry tubs - Plan

Washing machine - Plan view


Washing machine - Front view

Washing machine - Side view

Layer for insertion

Dish washer - Plan view

Layer for insertion

??-EQPT---E-

/OWI

Symbol name

SANISTSP

Symbol name

EQPTWTDP

EQPTWMSP

EQPTWMSF

EQPTWMSS

EQPTDWSP

CP 83 : Part 2 : 2000

- No. - 6.

- 7.

- 8.

Description of ( Graphic image (2D symbol 1 representation) Dish washer - Front I view

Cooker - Front view

Dish washer - Side view

Cooker - Plan view

cooker - Side view

1

Refrigerator - Plan I view I

I

Refrigerator - Front [ view

I

Refrigerator - Side 1 view

Layer for insertion Symbol name

EQPTDWSF

EQPTDWSS

EQPTCKSP

EQPTCKSF

EQPTCKSS

EQPTRFSP

EQPTRFSF

EQPTRFSS

CP 83 : Part 2 : 2000

A.1.6 Landscaping and tree planting - No. - 1.

- 2.

- 3.

Palm tree 2 p Description of symbol Palm tree 1

Palm tree 3


Palm tree 4

I

Palm tree 5

Palm tree 6

Palm tree 7

Palm tree 8

I

Palm tree 9

Layer for insertion

??-LNSP--E-

Symbol name

LNSPOI 06

LNSPOI 07

LNSPOI 09

CP 83 : Part 2 : 2000

Description of symbol Palm tree 10

I

Tree 1


A

Palm tree 11

I

Tree 2

+

Tree 3

Tree 4

I

Tree 5

Tree 6

I

Tree 7

Layer for insertion

??-LNSP--E-

Symbol name

LNSPOl I 0

LNSPOl 11

CP 83 : Part 2 : 2000

- No. - 19.

- 20

- 21.

- 22.

- 23.

-

Tree 9 I

Description of symbol Tree 8

Tree 10


I

Shrub 1

Civil and structural engineering symbols

Please refer to

Table 1.3 Table 1.4 Table 5.1 Table 5.2 Table 5.3 Table 5.4 Table 5.5 Table 5.6

BS 1192 : Part 3 : 1987

Conventions for indicating zones Termination of dimension lines Concrete reinforcing bars, side view Groups of identical bars Concrete reinforcing bars, end view Concrete prestressing steels Welded fabric concrete reinforcement Annotation of steel sections

Layer for insertion

??-LN S P---E-

Symbol name

LNSP0208

Table 5.7 Bolts and rivets, and holes for bolts and rivets on fabrication drawings Table 5.8 Annotation of welds

CP 83 : Part 2 : 2000

A.3 Mechanical & electrical engineering symbols

A.3.1 Air-condit ioning

A.3.1.1 Valves symbols - No. - 1.

- 2.

- 3.

- 4.

- 5.

Globe valve

I

Check valve

I

Strainer (Y type)

I

2 way modulating

2 way odoff control valve (pneumatic)

2 wav modulating contrbl valve (el&.ctric) I

2 wav onloff

Layer for insertion

??-ACON-----E-

Symbol name

ACONOl 01

CP 83 : Part 2 : 2000

No. - 9.

10.

- 11.

- 12.

- 13.

- 14.

- 15.

- 16.

- 17.

2 way butterfly modulating control valve (pneumatic)

2 way butterfly onloff control valve A

(pneumatic)

2 way butterfiy modulating control valve (electric)

2 way butterfly onloff control valve (electric) G

Differential pressure sensor and controller

Pressure reducing 1 valve

PRV

Automatic flow valve (WIO flow measuring device) . (with flow measuring device)

Layer for insertion

??-ACON--E-

Symbol name

ACONO1 OS

ACONOI 11

- No. -

18.

19.

20.

21.

22.

23.

24.

25.

26.

Description of ( Graphic image (2D

I

Manual air vent

symbol Angle valve

I

Drain-off valve

representation) '

I

Automatic air relief valve

I

Flow meter

Temperature gauge with pocket

Pressure gauge with cock

I

Thermostatic

8

Flow switch

Layer for insertion

??-ACON--E-

Symbol narnc

CP 83 : Part 2 : 2000

- No. - 27.

- 28.

- 29.

- 30.

- 31.

- 32.

- 33.

- 34.

- 35.

Description of svmbol Pressure relief valve

Reducer (concentric)

Union

Expansion joint

Pipe guide

Pipe roller support

Pipe anchor

Graphic image (2D I Layer for insertion Symbol name representation)

??-ACON--E-

CP 83 : Part 2 : 2000

A.3.1.2 Damper symbols

No.

1.

2.

3.

4.

5.

6.

7.

8.

Description of I Graphic image (2D I Layer for insertion symbol Fire damper

Volume contrd damper

representation)

V C D +-+

??-FIREDAMP-E-

Motorised modulating damper (normally open) (electric)

Motorised modulating damper (normally dose) (electric)

Motorised damper (normally open)

Motorised damper (normally dose)

Non return damper I

Motorised damper (fire rated) (eledric)

NRD +-+

M-+

Symbol name

CP 83 : Part 2 : 2000

A.3.1.3 Equipment symbols - No. Description of

;ym bol 'ump

ieat recovery wheel

ieat exchanger

Fan coil unit

Silencer (circular)

Silencer (rectangular)

Variable air volume box

Flow sensor


Layer for insertion

??-ACON---E-

Symbol name

CP 83 : Part 2 : 2000

No.

10.

- 11.

- 12.

- 13.

- 14.

- 15.

16.

- 17.

- 18.

Description of symbol Humidii sensor

H i g b sensor

Pressure sensor

Temperature sensor

Thermostat

Fan switch c/w speed selector

Room thermostat CAW 3 speed selector

Energy meter

Air filter


Layer for insertion

??-ACON--E-

Symbol name

ACON0310

CP 83 : Part 2 : 2000

No. I Description of I symbol

19. 1 Motor Control Centre ( K C ) I Local Motor Control Panel (LMCP) 1 Remote Control Panel (RCP)

sensor for filter dogged alarm

guide vane position

25.


Inlet guide vane

I I G V /


CP 83 : Part 2 : 2000

No.

28.

29.

30.

31.

32.

33.

34.

35.

36.

Description of symbol Carbon dioxide sensor


Carbon monoxide sensor

Terminal board

Variable speed drive

Extra high level alarm

Measurement for inlet guide vane position

Layer for insertion

m

Symbol name

CP 83 : Part 2 : 2000

1 No. I Description of I Graphic image (2D

A3.1.4 Diffuser symbols

symbol Extra low level alarm

- No. - 1.

- 2.

- 3.

representation)

Description of symbol 2 way flow SCD

3 way Row SCD

4 way Row SCD

Retum linear diffuse [1200 0-11

Supply linear diffuser

[1200 (LI1

Light troffer supply [1 200 x 600 (FS)]


Layer for insertion

Layer for insertion

Symbol name

Symbol name

CP 83 : Part 2 : 2000

Description of symbol Light troffer supply [600 x 600 (FS)]

Returnlexhaust air grille/difh~ser

Door l o u m

Exhaust air grille

Dummy linear diffuser

Ceiling access panel (by builder)

4 ways flow SCD (round neck)

4 ways flow SCD - Two opposite side breaking

4 ways flow SCD - 3 side breaking



CP 83 : Part 2 : 2000

- No. - 16.

17.

18.

- 19.

Description of symbol 4 ways flow SCD - 4 side breaking

Am>w for SIA and FIA

Am>w for EIA and RIA

Light troffer return (1 200 x 600)

Light troffer retum (600 x 600)

A.3.1.5 Fitting symbols - No. - 1.

- 2.

- 3.

Graphic image (2D

I

Duct branch clw I I 1

Description of symbol Elbow

I

Pipe tee-off


Layer for insertion

??-ACONSUDF-E-

Layer for insertion

Symbol name

Symbol name

CP 83 : Part 2 : 2000

- No. - 4.

- 5.

-

Description of 1 Graphic image (2D symbol ( representation) Fire (for smoke I extract system schematic)

I

Split dud I

A.3.1.6 Piping symbols - No. Description of

symbol Pipe blank-off

Pipe tuming down

Pipe tuming up

Flow direction


Layer for insertion

Layer for insertion

??-ACON--E-

Symbol name

Symbol name

ACON0701

CP 83 : Part 2 : 2000

A.3.1.7 Ductwork symbols - No. - 1.

- 2.

- 3.

I

Bottom access panel

Description of symbol Side access panel

lndined drop in respect to air flow


Flexible connection (for dudwork)

Square elbow with guide vanes

Radius elbow I

Flexible duct

duct section

duct section

~ayerfor insertion

??-ACONDUCT-E-

??-ACON D U CT-E-

??-ACON D U CT-E-

symbol name

ACON0801

CP 83 : Part 2 : 2000

A.3.2 Electrical

A.3.2.1 Lighting symbols

(36W - Batten) 7

No.

1.

(58W - Batten) T

Description of symbol Fluorescent fitting (1 8W - Batten)

-r""" (2 x 18W - Batten)

(2 x 36W - Batten) I--- (2 x 58W - Batten) 7

(36W - Wall mounted

7.

Graphic image (2D ( Layer for insertion

fluorescent fitting (1 8W - Wall mounted batten)

Symbol name

LIGTO101 representation)

??-LIGT--E-

CP 83 : Part 2 : 2000

Description of symbol Fluorescent fitting

(58W - Wall mounted oatten)

Fluorescent fitting

(2x l8W- Wall mounted batten)

Fluorescent fitting

(2 x 36W - Wall mounted batten)

Fluorescent fitting

(2 x 58W - Wall mounted batten)

Fluorescent fitting

(300 x 600)

Fluorescent fitting

(1 8W - Wall mounted)

Fluorescent fitting

(600 x 600)

Fluorescent fitting

(300 x 1200)

Fluorescent fitting (36W - Wall mounted)


Layer for insertion

??-LIGT--E-

Symbol name

LlGTOlO9

CP 83 : Part 2 : 2000

No.

18.

19.

20.

21.

22.

23.

24.

25.

26.

Description of I Graphic image (2D I Layer for insertion

I I

Circular light fitting I I ??-LIGT--E-

symb61 Fluorescent fitting

I I

Wall mounted light I I ??-LIGT--E- fitting

representation)

I I

Ceiling lighting point 1 I ??-LIGT--E-

??-LIGT--E-

Wall lighting point

I I Spot light

light

I I

Wall mounted spot

I

Wall mounted flood I I ??-LIGT--E-

I ??-LIGT--E-

Flood light

light

??-L I GT--E-

Symbol name

CP 83 : Part 2 : 2000

- No. - 27.

- 28.

- 29.

- 30.

-

Description of I Graphic image (2D symbol 1 representation) Type of luminaries for (

(n- denotes type of light fdting)

Emergency lighting

Emergency lighting wall mounted

Downlight

A.3.2.2 Lighting switches symbols

No. - 1.

2.

- 3.

Description of Graphic image (2D symbol representation) Single-pole lighting switch, 1-way (one gang) l'

switch, I -way (one gang, metalclad)

Lighting switch, 2-way (one gang)

6 Lighting switch, 2-way (one gang, metalclad)

f i

Layer for insertion

??-LIGT----E-

Symbol name

LIGT0127


CP 83 : Part 2 : 2000

- No.

5.

6.

- 7.

- 8.

9.

- 10.

- 11.

- 12.

- 13.

-

Description of I Graphic image (2D symbol 1 representation) Intermediate lighting I switch (one gang) I

I

Intermediate lighting I switch (onegang, -

metaldad)

Doublepole lighting switch, 1-way (one

DouMepole lighting switch, 1-way (one gang)

gang, metaldad) I /C

P

Dimmer c/w switch I

20AdouMepde switch cEw neon i n d i i lamp and marked 'hater heat&

I

Waterproof lighting I switch

I

Splashproof lighting I switch

Layer for insertion

??-LIGTSWIT-E-

Ftamepoof lighting swwl

Symbol name

LIGT0205

F P r

CP 83 : Part 2 : 2000

- No. - 14.

- 15.

- 16.

- 17.

Description of Graphic image (2D representation)

Dimmer switch panel I (conventional type)

Dimmer switch panel (digital type)

Dimmer rack

Threepole lighting I switch, 1-way (one gang)

T h w lighting switch, 1-way (one gang, metaldad) i

A3.2.3 Electrical switches symbols

[ No. I Description of I Graphic image (2D


1.

Layer for insertion

??-ELECSWIT-E- symbol Fireman's switch

Symbol name

ELECOl 01 representation)

CP 83 : Part 2 : 2000

A.3.2.4 Power symbols

No.

3.

No. 1 Description of

Description of symbol Belfswitchmarked with "Bel" symbol


2.

Layer for insertion

??-ELECSWIT-E-

13A fuse connection unit wlo switch

Graphic image (2D I Layer for insertion

Symbol name

ELECOlO3

representation) Symbol name

??-ELEC--E-

CP 83 : Part 2 : 2000

No. ( Description of I Graphic image (2D I Layer for insertion 1 Symbol name

(rating as shown) +- 3.

Distribution Board (DBIDBE) 1 Su~witchboard (SBISBE) I

Lift Subswitchboard (LSBE) 1 L i Distribution Board (LDBE)

Main Switchboard (MSBIEMSB) I Generator Control Panel (GCP)

symbol 13A connector unit

5.

outlet (one gang) -l-l

15A connector unit

representation)

9.

10.

??-ELEC--E- ELEC0203

13Aswitch socket outlet (one gang, metaldad)

13Aswitchsocket outlet (two gang)

??-ELEC--E-

??-ELEC--E-

ELEC0209

ELEC0210

CP 83 : Part 2 : 2000

No. - 11.

- 12.

- 13.

- 14.

- 15.

- 16.

- 17.

- 18.

7

19.

-

Description of syrnbo~ 13A switch socket outlet (two gang, metalclad)

Graphic image (2D ( Layer for insertion ] representation) I

??-ELEG-E-

I 1% weatherproof

I I

IS switch socket I ( ??-ELEG-E-

switch socket outlet

outlet

wB

outlet (metaldad) 15A switch socket ??-ELEC---E-

Symbol name

ELEC0211

13Aswitchsocket outlet (floor mounted type)

13A splashproof switch socket outlet

13A switch socket outlet (mounted on floor pedestal)

13A switch socket outlet (two gang) (mounted on floor pedestal)

13A switch socket outlet (one gang, mounted at high level)

I

??-ELEC--E-

??-ELEC--E-

8 ??-ELEG-E-

8 ??-ELEC--E-

XP ??-ELEG-E-

CP 83 : Part 2 : 2000

Description of Graphic image (2D symbol representation) 13A switch socket outlet (one gang, metalclad, mounted at high level)

A.3.2.5 Lightning protection symbols - No. - 1.

- 2.

- 3.

-

Description of I Graphic image (2D

Earth pit inspection

symbol Air terminal

Lightning stub

representation)

A.3.2.6 Single line diagram symbols


??-ELEC--E- ELEC0220

Layer for insertion

??-LGTN--E-

No. 1 Description of I Graphic image (2D I Layer for insertion

breaker (ACBIOCBNCB) I

/ symbol I representation) I

Rating as shown

1. 1 AirlOil SF6 circuit

Moulded case circuit breaker (MCCB) 1 miniature circuit breaker (MCB) Rating as shown

1 ??-ELEC--E-

Residual current- operated circuit breaker (RCCB) L Rating and sensitivity as shown

Symbol name

LGTNOI 01

CP 83 : Part 2 : 2000

- No. Description of

symbol Automatic Transfer S w i h

Rating as shown

Earth leakage relay cAw time lag

lDMn overcurrent protedive relay with instantaneous hi-set element (without hi- set for HT feeder)

IDMT earth fault relay with instantaneous hi set element Definite time lag earth fault reby

Pilot wire protection relay

Maximum demand meter with alarm, ECT

Kilowatt meter

Kilowatt-hour meter

Digital ldlowatt-hour meter


Layer for insertion

??-ELEC--E-

Symbol name

CP 83 : Part 2 : 2000

No. - 13.

- 14.

- 15.

- 16.

- 17.

- 18.

- 19.

- 20.

- 21.

Description of symbol Kilowatt-hour meter (by Power Grid)

Restricted earth fault relay

Over-voltage relay

Under-voltage relay

Ammeter ciw maximum demand indicator

Voltmeter (scale as shown)

Power factor meter

Frequency meter

Hour run meter


Layer for insertion

??-ELEC--E-

Symbol name

CP 83 : Part 2 : 2000

- No.

22.

23.

24.

25.

26.

27.

- 28.

- 29.

- 30.

Description of symbol Meter panel

Shunt trip relay

Tlme-lag relay

Dierential unit protection relay

Earth, general symbol

HRC fuse (rating as shown)

Selector switch

Indicator light

Normally dose contact


R Y B m


CP 83 : Part 2 : 2000

No. I Description of I Graphic image (2D ( symbol ( representation)

31. 1 Normally open I

32.

34. 1 Zero current I

33.

transformer

Contactor coil

r,l Current transformer (dass ratio and burden as shown)

36. Power transformer (capacity and voltage ratio as shown)

1

35.

I Set (SGS)

Voltage transformer

I I

37. 1 Standbv Generator I T

pass! 38. Time switch c/w by-

Earthing point

Layer for insertion

A - -

r;?

Symbol name

CP 83 : Part 2 : 2000

Description of symbol HRC fused taped unit (rating as-shown)

MCCB t a m unit (rating as shown)

Cable end dw cable termination kit

Balanced earth fault relay c/w stabilising resistor (GEC FAC14 or Reyroller 583)

V-connected voltage transformer 200VA per phase, Class 1.0 (voltage ratio as shown or to state appropriate ratio)

Unintermptible power supply (rating as shO'M-0

Buckholz relay

Oil and winding temperature sensor

Low oil alarm sensor

Sraphic image (2D epresentation)

.ayer for insertion

??-ELEC--E-

Symbol name

ELEC0340

CP 83 : Part 2 : 2000

No.

49.

50.

- 51.

- 52.

- 53.

54.

- 55.

- 56.

- 57.

Description of symbol Temperature alarm

Temperature trip

Transformer endosure door interlock

Low oil level trip

Gas pressure alarm

Gas pressure trip

Emergency stop button & key reset

Remote trip push button

Current test terminal


C T T (-1

Layer for insertion

??-ELEC--E-

Symbol name

ELEC0349

CP 83 : Part 2 : 2000

- No. - 58.

- 59.

- 60.

- 61.

- 62.

- 63.

- 64.

- 65.

- 66.

Description of symbol Neonpotential indicator

Earthi switch (rating as shown)

Current transducer (Cup: 4-20rnA)

Voltage transducer (W: d m )

Power transformer (capacity and voltage ratiossshown)

Jwlcbbn box

Dimct arrline starter

Sar-dela starter

Graphic image (2D I Layer for insertion Symbol name

ELEC0358 representation)

??-ELES-E-

CP 83 : Part 2 : 2000

- No.

67.

68.

69.

- 70.

- 71.

- 72.

- 73.

- 74.

- 75.

-

Description of symbol Motor

Cubide heater

KW transducer 3- phase 4 wire unbalance type

2channel pulse integrator with output for BMS monitor

Isolating switch (rating as shown)


Layer for insertion

??-ELEG--E-

Symbol name

CP 83 : Part 2 : 2000

- No. - 76.

- 77.

- 78.

-

Description of I Graphic image (2D symbol I representation) Fuse, general symbol I

I

Fuse switch I

A3.2.7 Underfloor symbols

No. Description of symbol Junction box cEw cover

Service outlet

Knock out box c/w Mank plate mounted flushed with floor finishes (for ='mputer)

Vertical access box cEw cover


Layer for insertion

Layer for insertion

??-ELECUNDR-E-

Symbol name

ELEC0376

Symbol name

ELEC0401

CP 83 : Part 2 : 2000

A.3.2.8 Telecommunication symbols

No.

1.

2.

3.

4.

5.

6.

7.

8.

9.

Description of symbol Telephone outlet

Telephone outlet mounted flushed with floor finishes

Telephone outlet (fkm mounted type)

Telephone outlet mounted on floor pedestal

Telephone termination box (terminal box) (1 0 pais)

Private automatic branch exchange

Control console

Main distribution frame

Distribution panel


Layer for insertion

??-TCOM--E-

Symbol name

CP 83 : Part 2 : 2000

~escription of ymbol ~terrnediate istribution frame

-

bmputer outlet

No.

10.

11.

12.

13.

14.

- 15.

- 16.

- 17.

- 18.

-

hputer outlet

!-way splitter

1-port tap& unit

2-port tap& unit

4-port tapoff unit

Multi-tap unit ("nu denotes the number of 'Nays)

;raphic image (2D epresentation)

.ayer for insertion

'?-TCOM--E-

iymbol name

'COM0110

A3.2.9 N antenna I cable symbols

Symbol name

TCOMOl19

TCOM0120

TCOMOl2l

TCOM0122

TCOM0123

TVIFM co-axial outlet r

Layer for insertion

??-TCOM--E-

??-TCOM--E-

??-TCOM--E-

??-TCOM--E-

??-TCOM--E-

No.

1.


El rn

D 75ohm

No.

19.

20.

21.

22.

23.

C

Description of symbol TVFM outlet


Description of symbol lportterminalunit (end unit)

2-port terminal unit (end unit)

4-port terminal unit (end unit)

Distribution amplifier

75 ohm resistor

3. TVIFM co-axial outlet


??-WAN--E- TVANOl 03

CP 83 : Part 2 : 2000

Description of symbol Teleconferencing cable outlet

- Antenna mast

Singapore Cable V i i


- No. - 1.

- 2.

- 3.

- 4.

- 5.

-

A3.2.10 Security System Symbols

I

Magnetic shutter door I

Description of symbol Doorcontact


Layer for insertion

??-WAN--E-

Watchman tour sWion

Layer for insertion

??-SECU--E-

n

Symbol name

TVANO 1 04

Symbol name

SECUOlOl

CP 83 : Part 2 : 2000

Description of symbol Infra-red detector

Vibration detector

Motion detector

Panic bolt lock

Uedric lock interface point (electric lock to be provided by other)

CCTV monitor

Operator terminal

Printer

Fixed type CCTV came$ (wall mwnted/suspended)


Layer for insertion

??-SECU--E-

Symbol name

SECUOlO6

SECUOl 10

SECUOl 1 1

CP 83 : Part 2 : 2000

- No. - 15.

- 16.

- 17.

- 18.

- 19.

- 20.

- 21.

- 22.

Description of 1 Graphic image (20

camera

symbol Panmlt type CCTV

PaflltlZoom type CClV camera

representation)

weatherprooftype CClV camera

CCTV camera with standard lens concealed in the wall or ceiling (minimum 050mm opening required)

Video casette tape recorder

CCTV camera with pin M e lens concealed in the wall or ceiling (minimum 0 1 0mm opening required)

Sequential switcher I

P c 3


SECUOl 20

CP 83 : Part 2 : 2000

Description of symbol Slave unit for fireman intercom system

Master unit for fireman intercom system

Fireman intercom outlet

Fireman intercom outlet

Building intercom outlet

Local box

Master building intercom

Card access



CP 83 : Part 2 : 2000

No. - 32.

- 33.

- 34.

-

Description of symbol Visitor call panel

Video phone


A3.2.11 Public address system symbols - No. - 1.

- 2.

- 3.

- 4.

- 5.

-

Description of symbol Vdurne contrd

Ceiling mounted loudspeaker (surface)


Ceiling loudspeaker (concealed)

I Ceiling loudspeaker I

n

(for emergency announcement only)

Layer for insertion

??-SECU--E-

Layer for insertion

??-PUBASPKR-E-

Symbol name

Symbol name

Description of symbol Horn loudspeaker

MIC input

Speaker d u m e

Amplifier (rating as s-)

PA interface for local reinforcement sound system

Overtide control for the local sound system

A.3.2.12 Fan symbols

Ceiling oscillating fan r No.

1.

Sraphic image (2D epresentation)

Description of symbol Ceiling fan

_ayer for insertion

??-PUBASPKR-E-

Graphic image (2D ) Layer for insertion representation)

n ??-FANS--E-

Symbol name

PU BAO 1 0'1

CP 83 : Part 2 : 2000

No. - 3.

4.

7

5.

- 6.

Description of symbol Wall mounted fan

Fan regulator

Axial fan

Pmpeller fan

A3.2.13 Sign symbols

No. - 1.

- 2.

- 3.

Graphic image (2D I Layer for insertion I Symbol name representation)

I I

Exit light (single sided I I ??-SIGN--E- directional a m Facing left)

??-FANS--E-

Layer for insertion

??-SIGN--E-

3escription of symbol 3it light

Exit light (single sided directional amw facing right)

FANS01 03


Exit light (double sided directional arrow facing left) [ ;-EXIT? I

Symbol name

CP 83 : Part 2 : 2000

Description of symbol Exii light (double sided directional arrow facing right)

Exii light (single sided directional arrow facing both left and right)

Exit light (double sided directional a m facing both left and right)

Gas discharge sign (flashing type)

Evacuate sign (flashing type)

Traffolyte warning sign

Beacon light (rotating sign)


Layer for insertion

??-SIGN--E-

Symbol name

SlGNOl 06

SlGNOl 07

SlGNOl 11

CP 83 : Part 2 : 2000

A.3.3 Fire protection

A.3.3.1 Sprinkler symbols

Description of symbol Exposed sprinkler head

Concealed sprinkler head

Flush type sprinkler head

Semi-recessed sprinkler head

Sprinkler u/s escalator /duct /beam

Side-wall sprinkler

Cut-off sprinkler

Dry sprinkler (concealedceiling void)


Layer for insertion

??-SPRK--E-

Symbol name

FIRE01 01

CP 83 : Part 2 : 2000

No.

9.

10.

11.

Description of I Graphic image (2D 1 Layer for insertion symbol Dry pendant sprinkler

Exposed sprinkler head (schematic) I

Concealed sprinkler head (schematic)

- No. - 1.

- 2.

- 3.

A3.3.2 Valve symbols

representation) ??-SPRK--E-

Check valve

Description of symbol Gate valve

Y type strainer 1 I ??-FIRE--E-

Flexible connection


Layer for insertion

??-FIRE--E-

Symbol name

FIRE0201

I

Solenoid valve 1 ??-FI RE--E-

CP 83 : Part 2 : 2000

No.

6.

7.

8.

9.

10.

11.

12.

13.

Description of ( Graphic image (2D symbol representation) Wotorised valve

I

Monitoring valve

flow switch

Subsidiary valve [monitored stop

Buttefly valve

-

Pressure gauge cEw stop cock

Sluice valve

Layer for insertion

??-FI RE--E-

Symbol name

CP 83 : Part 2 : 2000

A.3.3.3 Detector symbols

No.

1.

2.

3.

4.

5.

6.

7.

8.

Description of symbol Smoke detector (ionisation) exposed at false ceiling

Smoke detector (optical) exposed at false ceiling 1 Smoke detector (ionisation) raised floor / concealed in ceiling void

Smoke detector (optical) raised floor / concealed in ceiling 1


void

??-FIRESMOK-E-

Layer for insertion

??-FI RESMOK-E-

FIRE0302

Symbol name

FIRE0301

Smoke detector (combination of opticalheat) exposed at false ceiling

Smoke detector (combination of opticallheat) raised floor 1 concealed in ceiling void

??-FIRESMOK-E-

Smoke detector (explosion proof) exposed at false ceiling

Smoke detector (explosion proof) raised floor / concealed in ceiling void

FIRE0305

??-FIRESMOK-E- FIRE0306

??-FIRESMOK-E-

??-FIRESMOK-E-

FIRE0307

FIRE0308

CP 83 : Part 2 : 2000

No. I Description of I Graphic image (2D ( symbol ( representation)

9. 1 Heat thermal detector I

at false ceiling eroosed I

Heat thermal detector (fixed type) raised floor / concealed in ceiling void

(rate of rise

exposed at false ceiling

Heat thermal detector (rate of rise temperature) raised floor I concealed in ceiling void

A.3.3.4 Fire alarm symbols

No.

1.

2.

3.

4.

Description of symbol Fire alarm bell (indoor)

Fire alarm bell (outdoor/ w=therproof)

Manual call point I breakglass (indoor)

Manual call point I breakglass (outdoor1 weatherproof)

Layer for insertion

??-FI REH EAT-E-

??-FI REHEAT-E-

??-FI REHEAT-E-

Graphic image (2D I Layer for insertion

??-FI REALAM-E- - representation)

??-FI REALAM-E-

??-FI REALAM-E-

??-FI REALAM-E-

Symbol name

FIRE0309

Symbol name

CP 83 : Part 2 : 2000

Description of I Graphic image (2D I Layer for insertion No.

5.

6.

7.

8.

9.

10.

11.

12.

13.

symbol Floor mimic panel chrv LED indications in

representation)

colour perspex

??-FI REALAM-E-

??-FI REALAM-E-

Zone floor chart

Main alarm panel chrv battery compartment

??-FI REALAM-E-

??-FI REALAM-E-

Master mimic panel C/W LED indications

??-FI REALAM-E-

Monitoring module ??-FI REALAM-E-

??-FI REALAM-E-

Cdour monitor (textlgraphics) and keyboard

Control module

I I I ??-FI REALAM-E-

C

Printer (alarm 1 system status) -7

CP 83 : Part 2 : 2000

s mbol Data transmission modem

15. 1 BMS interface board

Graphic image (2D re~resentation)

Layer for insertion

??-FI REALAM-E-

??-FI REALAM-E-

A.3.3.5 Miscellaneous symbols - No. - 1.

- 2.

- 3.

Description of I Graphic image (2D I Layer for insertion symbol Two-way bmeching inlet

representation)

n

Four-way breeching 1 inlet

Two-way breeching inlet (schematic)

Four-way breeching inlet (schematic)

Control valve I

I I

Contrd valve I 1 ?? FIRE--E- (schematic) I

Symbol name

FIRE0414

Symbol name

FI RE0501

CP 83 : Part 2 : 2000

- No. - 7.

8.

9.

- 10.

- 11.

- 12.

- 13.

- 14.

- 15.

-

Description of symbol Dry riser landing valve

Dry riser landing valve (schematic)

Wet riser landing valve

Wet riser landing valve (schematic)

Drain off valve

Automatic air relief valve

Pressure gauge chv cock

Vortex inhibir

Vortex i n h i b i (schematic)


Layer for insertion

??-FIRE--E-

Symbol name

CP 83 : Part 2 : 2000

Description of svmbol Jockey pump

Fire pump

Fire pump (schematics)

Hosereel chv stainless steel cabinet

Hosereel (schematic)

Hosereel chv stainless steel cabinet (schematic)

Hydrant

Hydrant (schematic)



CP 83 : Part 2 : 2000

No. I Description of I Graphic image (2D I symbol I representation)

25. 1 2.5 kg ABC dry power I I clw steel cabinet. I

clw steel cabinet.

I I 27. 1 9 kg ABC dry power I

I I

28. 1 2.5 kg C& fire 1

extinguisher clw steel cabinet

extinguisher clw steel 1 cabinet

inside ceiling level I at 1 floor space

32. Concealed n d e inside ceiling void I inside raised

Layer for insertion

??-FI RE--E-

33.

Symbol name

FIRE0525

Gas cylinders clw manifold

CP 83 : Part 2 : 2000

7

No. 7

34.

- 35.

- 36.

- 37.

-

Description of symbol Siren

Total flooding gas control panel c/w battery compartment

Emergency manual release unit

Breathing apparatus


No. - 1.

- 2.

- 3.

- 4.

A.3.4 Plumbing and sanitary

A.3.4.1 Sanitary symbols

Descri~tion of 1 Graphic image (2D I Layer for insertion

Layer for insertion

??-FIRE--E-

Symbol name

FIRE0534

symbol Manhole

I

Hatch-box (HB) 1

Inspector chamber

Sump I

representation) '

??-SANI--E-

Symbol name

SANlOl 01 ??-SAN I--E-

SANlOl O4

CP 83 : Part 2 : 2000

No. - 5.

- 6.

- 7.

- 8.

- 9.

- 10.

- 11.

- 12.

- 13.

Description of symbol Grease trap

Floor-trap (FT)

Floor-waste (FW)

Screen chamber

Cast iron gully trap

Silt sump


Layer for insertion

??-SAN I--E-

Symbol name

SANlOlO5

CP 83 : Part 2 : 2000

No. Description of I Graphic image (2D I Layer for insertion I Symbol name symbol I representation) I I RC hanger (for drain 1 1 ??-SANI--E- I SANlO114 lines)

I

Gully trap

A.3.4.2 Valve symbols

Rain water down pipe

s mbol

0 G T


I

2. 1 Check valve

3.

I I

5. 1 Solenoid valve

'Y' type strainer

4.

Layer for insertion

??-SAN I--E-

Flexible connection

Symbol name

CP 83 : Part 2 : 2000

- No. - 6.

- 7.

- 8.

- 9.

- 10.

Description of symbol Motorised valve

C a p d valve

Automatic air r d i valve

Pressure gauge & cock

Globe valve


A3.4.3 Domestic hot and cold water system symbols

No. - 1.

- 2.

- 3.

-

Description of symbol Vortex inhibir

Layer for insertion

??-SANI--E-

Graphic image (2D I Layer for insertion representation) I

( ??-DWAT--E-

Vortex inhibir (schematic)

Symbol name

Jockey pump

Symbol name

6%

??-D WAT--E-

DWATOlOl

??-D WAT--E-

CP 83 : Part 2 : 2000

Description of symbol Pump

Pump (schematic)

Storage water heater

Meter

Sub-rneter

Tap point

Tap point (schematic)

Bib tap dw cap and lock (schematic)

Puddle flange


Layer for insertion

??-D WAT--E-

Symbol name

DWATO 1 05

DWATO 1 08

DWATO 1 09

DWATOl 10

CP 83 : Part 2 : 2000

Description of I Graphic image (2D symbol Ball float valve

representation)

Level sensor switch

Pressure reduce valve

FFI

Water tank air vent

Pressure reducing valve and pressure Sensor

L

I

Water hammer I

Water hammer absorber (schematic)

sensing unit (provided by

n Isolator for water doset 1 urinal auto

I

Pressure vessel I

, - - -

Layer for insertion

? ? D WAT--E-

Symbol name

DWAT0113

CP 83 : Part 2 : 2000

Description of symbol Pressure vessel (schematic)


Vent cowi I

Vent cowi (schematic)

Control panel I

I

Cdd water tank

A3.4.4 Miscellaneous symbols

No.

1.

2.

3.

Description of symbol Grease interceptor


Strainer basket I

Dilution tank

Layer for insertion

m

Layer for insertion

??-SANI--E-

Symbol name

Symbol name

CP 83 : Part 2 : 2000

- No.

Gas symbols

Description of symbol Gas pits capoff with ball vabe '

Gas pipe c a p 4 with gate valve

Service Isolation Valve (SIV)


Graphic image (2D 1 Layer for insertion ( Symbol name

Layer for insertion

??-SANI--E-

Symbol name

SAN10304

representation) ??-GASP--E- GASP0101

CP 83 : Part 2 : 2000

Description of I Graphic image (2D symbol ( representation) Service Valve (SW I

I

Ball valve

Gate valve

Solenoid valve I

Non-retum valve

I

Syphon

Gas meter

Gas detector


GASPO 1 04

GASPO 1 06

GASPO 1 08

GASPO 1 1 0

GASPO 1 1 1

GASPO 1 1 2

CP 83 : Part 2 : 2000

I No. ( Description of I Graphic image (2D

1 3.

19. Pressure regulator

14.

15.

Layer for insertion

??-GASP--E- symbol Detector panel

Symbol name

GASPO 1 1 3 representation)

Low pressure switch

Highpressureswitch

GASPO 1 1 6

P P

CP 83 : Part 2 : 2000

No.

22.

23.

24.

25.

26.

27.

28.

29.

30.

Description of symbol Riser to below

Riser from below

Dropper from above

Dropper c/w valve

ChanneUTrench or sleevebox-up

Ductfoot support

syphon 1%

Pipe at high level

Pipe at low level

Sraphic image (2D =presentation)

Layer for insertion

??-GASP--E-

Symbol name

GASP01 22

CP 83 : Part 2 : 2000

No. I Description of ( Graphic image (2D / Layer for insertion 1 Symbol name

. Underground gas pipe

symbol Concealed1

- 6 - MATLSIZEI

representation) ??-GASP--E- GASP01 31

CP 83 : Part 2 : 2000

ABOUT THE STANDARDS, PRODUCTIVITY AND INNOVATION BOARD (SPRING SINGAPORE)

The mission of the Standards, Productivity and Innovation Board, or SPRING Singapore in short, is to raise productivity so as to enhance Singapore's competitiveness and economic growth for a better quality of l ie for our people. In carrying out its mission, SPRING Singapore focuses on three areas: productivity and innovation, standards and conformance, and small and medium-sized enterprises (SMEs) and the domestic sector.

Productivity and lnnovation

The Productivity and lnnovation focus has four key thrusts: promotion, business excellence, people excellence and service excellence.

Under its promotion thrust, SPRING Singapore spearheads the national Productivity and lnnovation Movement. The movement aims to cultivate strong commitment to productivity and innovation in all sectors of the economy and to develop a creative workforce and innovative enterprises. SPRING Singapore serves as Secretariat to the National lnnovation Council.

Using its internationally recognised Business Excellence programme, SPRING Singapore assists organisatiis to systematically achieve world-class standards of business excellence. At the apex of the programme is the Singapore Quality Award (SQA).

Under its People Excellence thrust, SPRING Singapore initiates leading-edge programmes to enhance the capabilities of the workforce. This enables them to scale new heights and achieve higher levels of productivity. SPRING Singapore administers the Skills Development Fund (SDF), which provides incentives to help companies defray the cost of training their employees. The incentives are financed through collections from the Skills Development Levy imposed on employers.

In view of the importance of service quality to competitiveness, SPRING Singapore spearheads Service Excellence in Singapore. The goal is to raise service quality levels in Singapore to world-class standards.

Standards and Quality

The focus area of Standards and Quality has two major thrusts: standardisation and conformity assessment, and measurement infrastructure development. These are aimed at enhancing productivity, facilitating market access, ensuring safety and health, and protecting the environment.

As the national standards body, SPRING Singapore administers the Singapore standardisation programme, which involves the development and implementation of standards in industry. Please visit www.standards.om.sq for more information. As standards and conformance issues can be potential bamers to trade, SPRING Singapore actively supports the government's Free Trade Agreement (FTA) strategy to ensure market access.

As the national authority for the accreditation of conformity assessment bodies, SPRING Singapore audits and accredits quality systems and the competence of quality system certifiers, inspection bodies, and testing and calibration laboratories.

SPRING Singapore enforces the Weights & Measures Act and Regulations to protect consumers by ensuring that market transactions based on weights and measures are accurate, fair and comply with the relevant standards.

As the Safety Authority, SPRING Singapore administers the Singapore Consumer Protection (Safety Requirements) Registration Scheme to ensure that the controlled goods used by consumers in Singapore are safe.

As Singapore's national metrology institute, SPRING Singapore ensures that the measurement infrastructure adequately supports the growing needs of industry. It maintains Singapore's national measurement standards for use by the industry, and provides the vital link between measurements camed out in Singapore and those in the international system.

CP 83 : Part 2 : 2000

SMEs 8 Domestic Sector

The SMEs and Domestic Sector area of focus has two thrusts: broad-based enterprise upgrading and industry transformation.

SPRING Singapore serves as the first point of contact for SMEs that need information and assistance for upgrading. As the lead agency spearheading the upgrading of SMEs, it adopts a total approach to developing SMEs into vibrant and resilient enterprises.

SPRING Singapore spearheads the transformation of the domestic sector. The goal is to create a vibrant, dynamic and resilient domestic sector that is able to contribute significantly to the overall economy.

SPRING Singapore administers two key financial incentive schemes for SMEs. The first is the Local Enterprise Finance Scheme (LEFS), which is a fixed interest rate loan for SMEs to expand and develop new capabilities. The second is the Local Enterprise Technical Assistance Scheme (LETAS), which is a consultancy grant scheme to help SMEs acquire new competencies in operational management.

SPRING Singapore 2 Bukit Merah Central Singapore 159835 Tel: (65) 6278 6666 Fax: (65) 6278 6667 E-mail: [email protected] Website: http://www.spring.gov.sg

ABOUT THE NATIONAL STANDARDISATION PROGRAMME

Under the national standardisation programme, SPRING Singapore helps companies and industry to meet international standards and conformity requirements by creating awareness of the importance of standardisation to enhance competitiveness and improve productivity, co-ordinating the development and use of Singapore Standards and setting up an information infrastructure to educate companies and industry on the latest developments.

SPRING Singapore is vested with the authority to appoint a Standards Council to advise on the preparation, publication and promulgation of Singapore Standards and Technical References and their implementation.

Singapore Standards are in the form of specifications for materials and products, codes of practice, methods of test, nomenclature, services, etc. The respective standards committee will draw up the standards before seeking final approval from the Standards Council. To ensure adequate representation of all viewpoints in the preparation of Singapore Standards, all committees appointed consist of representatives from various interest groups which include government agencies, professional bodies, tertiary institutions and consumer, trade and manufacturing organisations.

Technical References are transition documents developed to help meet urgent industry demand for specifications or requirements on a particular product, process or service in an area where there is an absence of reference standards. Unlike Singapore Standards, they are issued for comments over a period of two years before assessment on their suitability for approval as Singapore Standards. All comments are considered when a technical reference is reviewed at the end of two years to determine the feasibility of its transition to a Singapore Standard. Technical References can therefore become Singapore Standards after two years, continue as Technical References for further comments or be withdrawn.

In the international arena, SPRING Singapore represents Singapore in the International Organisation of Standardisation (ISO), the International Electrotechnical Commission (IEC), the Asia-Pacific Economic Co- operation (APEC) Sub-committee for Standards and Conformance (SCSC) and in the ASEAN Consultative Committee for Standards and Quality (ACCSQ).

CP83_Part2_2000

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