-
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Page 35 to 64, A.3.2 SS 202 (13 parts) - 'Specification for graphical symbols for diagrams' has been withdrawn and replaced by the current IEC 60617 database. As CP 83 : Part 2 contains electrical symbols, users are encouraged to subscribe to the IEC 60617 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
21
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
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. 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.
bescription of symbol Single leaf single swing door
2.
Single leaf double swing door
3.
Double leaf single swing door
4.
Double leaf double swing door
5.
3raphic image (2D .epresentation)
Layer for insertion
Symbol name
??-DOOR----E-
DOORlOOA
DOORl OOB
Double unequal leaf single swing door
Roller shutter door 6.
DOORRSHT
Collapsible gate 7.
DOORCLGT
-
CP 83 : Part 2 : 2000
No.
8.
9.
10.
11.
12.
13.
Description of symbol Side hung folding door
Graphic image (2D representation)
Layer for insertion
Symbol name DOORSHFL
Centre hung folding door
DOORCHFL
Revolving door
DOORREVO
Single leaf sliding door
DOOR1LSL
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
Symbol name
No. 3.
Description of symbol Top hung casement ~indow
Graphic image (2D representation)
4.
5.
Side hung left hand casement window
6.
Side hung right hand casement window
7.
Adjustable louvre window
8.
Fixed louvre window
I
I
I
9.
I
10.
11.
-
Horizontal sliding
Vertical sliding window
r===i
-ayer for insertion
symbol name
??-WIN D----E-
VINDTHCC
CP 83 : Part 2 : 2000
A.1.3 Site and external works No.
Description of symbol Park bench
Graphic image (2D representation)
Layer for insertion
Symbol name SITEPKBH
EZ Dust bin
Garden (external) light fixture
Plumbing and sanitary fixtures
No.
Layer for insertion
Single tap combined outlet
Twin tap
Shower head
Drinking fountain Pedestal type
-
Symbol name
CP 83 : Part 2 : 2000
No. 6.
Description of symbol Drinking fountain -
Graphic image (2D representation)
Layer for insertion ??-SANIFIXR-E-
r-rrrrl 7.
Drinking fountain Wall type
8.
Wash basin Rectangular plan view
??-SANI FIXR-E-
9.
Wash basin Rectangular front view
??-SAN IFIXR-E-
10.
Wash basin Rectangular side view
??-SANI FIXR-E-
11.
Wash basin - Oval plan view
??-SAN IFIXR-E-
12.
Wash basin - Oval front view
??-SANI FIXR-E-
13.
Wash basin - Oval side view
??-SAN IFIXR-E-
14.
Wash basin Corner plan view
??-SANI FIXR-E-
Symbol name
CP 83 : Part 2 : 2000
No. 15.
Description of symbol Wash basin - Vanity plan view
16.
Sink - Laboratory plan view
17.
Sink - Single bowl single drainer plan view
18.
Sink - Single bowl double drainer plan view
19.
Sink - Double bowl double drainer plan view
20.
Bidet - Pedestal plan view
21.
Bidet - Pedestal front view
22.
Bidet - Pedestal side view
23.
Water closet Squat plan view
I Graphic image (2D
Layer for insertion
Symbol name
??-SANIFIXR-E-
SANlWBVP
representation)
I
I I
I
CP 83 : Part 2 : 2000
Layer for insertion
Symbol name
??-SANI FIXR-E-
SANIWCSF
Squat front view
Water closet Squat side view
Water closet Pedestal plan view
??-SANI FIXR-E-
Water closet Pedestal front view
Water closet Pedestal side view
??-SANI FIXR-E-
I
Water closet - Wall hung plan view
I
??-SANI FIXR-E-
n I
Water closet - Wall hung front view
1
1
Water closet - Wall hung side view
I
Water closet - Close coupled plan view
??-SANI FIXR-E-
X
CP 83 : Part 2 : 2000
No.
Description of
I Graphic image (2D
- symbol 33.
Layer for insertion
Symbol name
??-SANIFIXR-E-
SANIWCCF
representation)
Water closet - Close coupled front view
34. Water closet - Close coupled side view
35.
n
Urinal -Wall hung plan view
36. Urinal -Wall hung
SANIURWF
front view
n
Urinal -Wall hung side view
SANIURWS
n I
Long bath - Plan view
I
Long bath - Front view
EJ Long bath - Side view
Square bath - Plan view
SANILBSP
CP 83 : Part 2 : 2000
Description of symbol Shower bath - Plan view
I Graphic image (2D
I representation) I I
Layer for insertion
Symbol name SANISTSP
-
Multiple show unit Plan view
Foot bath - Plan view
I
A.1.5 Culinary and cleaning equipment Description of symbol 1. Wash trough / laundry tubs - Plan view No.
Graphic image (2D representation)
2. Washing machine -
Layer for insertion
Symbol name
??-EQPT---E-
EQPTWTDP
EQPTWMSP
Plan view
3.
Washing machine Front view
EQPTWMSF
Washing machine Side view
EQPTWMSS
Dish washer - Plan view
EQPTDWSP
/OWI
CP 83 : Part 2 : 2000
No.
6.
7.
8.
Description of ( Graphic image (2D symbol 1 representation) Dish washer - Front I view
Layer for insertion
Symbol name EQPTDWSF
Dish washer - Side view
EQPTDWSS
Cooker - Plan view
EQPTCKSP
Cooker - Front view
EQPTCKSF
cooker - Side view
EQPTCKSS
1
Refrigerator - Plan view
I I
EQPTRFSP
I
Refrigerator - Front view
[
EQPTRFSF
I
Refrigerator - Side view
1
EQPTRFSS
CP 83 : Part 2 : 2000
A.1.6 Landscaping and tree planting No.
1.
2.
3.
Description of symbol Palm tree 1
Graphic image (2D representation)
Layer for insertion
Symbol name
??-LNSP--E-
p Palm tree 2
Palm tree 3
Palm tree 4
I
Palm tree 5
Palm tree 6
LNSPOI06
Palm tree 7
LNSPOI07
Palm tree 8
I
Palm tree 9
LNSPOI 09
CP 83 : Part 2 : 2000
Description of symbol Palm tree 10
Graphic image (2D representation) A
Layer for insertion
Symbol name
??-LNSP--E-
LNSPOl I0
+ Palm tree 11
LNSPOl 11
I
Tree 1
I
Tree 2
Tree 3
Tree 4
I
Tree 5
Tree 6
I
Tree 7
CP 83 : Part 2 : 2000
No.
19.
20
21.
Description of symbol Tree 8
Graphic image (2D representation)
Layer for insertion
Symbol name
??-LN SP---E-
LNSP0208
I
Tree 9
Tree 10
22.
23.
I
Shrub 1
Civil and structural engineering symbols Please refer to BS 1192 : Part 3 : 1987 Table 1.3 Table 1.4 Table 5.1 Table 5.2 Table 5.3 Table 5.4 Table 5.5 Table 5.6 Table 5.7 Table 5.8
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 Bolts and rivets, and holes for bolts and rivets on fabrication drawings Annotation of welds
CP 83 : Part 2 : 2000
A.3
Mechanical & electrical engineering symbols
A.3.1 Air-conditioning 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)
2 wav onloff
I
Layer for insertion
Symbol name
??-ACON-----E-
ACONOl 01
CP 83 : Part 2 : 2000
No.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Layer for insertion
Symbol name
??-ACON--E-
ACONO1OS
. 2 way butterfly modulating control valve (pneumatic)
2 way butterfly onloff control valve (pneumatic)
ACONOI 11
A
2 way butterfiy modulating control valve (electric)
2 way butterfly onloff control valve (electric)
G
Differential pressure sensor and controller
Pressure reducing valve
Automatic flow valve (WIOflow measuring device)
(with flow measuring device)
1
PRV
No. 18.
Description of symbol Angle valve
19.
Manual air vent
20.
Drain-off valve
21.
Automatic air relief valve
22.
Flow meter
23.
Pressure gauge with cock
-
( Graphic image (2D representation)
??-ACON--E-
I
I
I
I
24.
Temperature gauge with pocket
25.
Thermostatic
26.
Flow switch
Layer for insertion
'
8
I
Symbol narnc
CP 83 :Part 2 :2000
No. Description of - svmbol 27.
28.
Pressure relief valve
Reducer (concentric)
29.
30.
Union
31.
32.
33.
34.
35.
Expansionjoint
Pipe guide
Pipe roller support
Pipe anchor
Graphic image (2D representation)
I
Layer for insertion
??-ACON--E-
Symbol name
CP 83 : Part 2 :2000
A.3.1.2 Damper symbols No. 1.
2.
Description of symbol Fire damper
I Graphic image (2D
??-FIREDAMP-E-
Volume contrd damper
VCD 3.
Motorised modulating damper (normally open) (electric)
4.
Motorised modulating damper (normally dose) (electric)
5.
Motorised damper (normallyopen)
6.
Motorised damper (normally dose)
7.
Motorised damper (fire rated) (eledric)
+-+
M-+
8.
Non return damper
I Layer for insertion
representation)
I
NRD
+-+
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
Graphic image (2D representation)
Layer for insertion
??-ACON---E-
Symbol name
CP 83 : Part 2 :2000
No.
Description of symbol 10. Humidii sensor
11.
12.
13.
14.
15.
H i g b sensor
Pressure sensor
Temperature sensor
Thermostat
Fan switch c/w speed selector
16. Room thermostat CAW 3 speed selector
17.
18.
Energy meter
Air filter
Graphic image (2D representation)
Layer for insertion
Symbol name
??-ACON--E-
ACON0310
CP 83 :Part 2 :2000 No.
19.
I Description of
I symbol 1 Motor Control Centre
Graphic image (2D representation)
( K C ) I Local Motor Control Panel (LMCP) 1 Remote Control Panel (RCP)
sensor for filter dogged alarm
25.
Inlet guide vane
I IGV / guide vane position
Layer for insertion
Symbol name
CP 83 : Part 2 :2000
No. 28.
29.
Description of symbol Carbon dioxide sensor
Graphic image (2D representation)
Carbon monoxide sensor
30.
31.
Terminal board
32.
Variable speed drive
33.
34.
35.
36.
Measurement for inlet guide vane position
Extra high level alarm
m
Layer for insertion
Symbol name
CP 83 : Part 2 :2000
1 No. I Description of symbol Extra low level alarm
I
Graphic image (2D representation)
Layer for insertion
Symbol name
Graphic image (2D representation)
Layer for insertion
Symbol name
A3.1.4 Diffuser symbols -
Description of - symbol 2 way flow SCD 1. No.
2.
3.
3 way Row SCD
4 way Row SCD
Retum linear diffuse [1200 0-11
Supply linear diffuser [1200 (LI1
Light troffer supply [1200 x 600 (FS)]
CP 83 : Part 2 :2000
Description of symbol Light troffer supply [600x 600 (FS)]
Returnlexhaustair 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
Graphic image (2D representation)
Layer for insertion
Symbol name
CP 83 : Part 2 :2000
-
Description of symbol 4 ways flow SCD 4 side breaking
17.
Am>w for SIA and FIA
No. 16.
Graphic image (2D
-
Layer for insertion
Symbol name
??-ACONSUDF-E-
18. Am>w for EIA and RIA
19.
Light troffer return (1200 x 600)
Light troffer retum (600 x 600)
A.3.1.5 Fitting symbols
No.
1.
2.
3.
Description of symbol Elbow
Graphic image (2D representation)
I
Duct branch clw
I
I
Pipe tee-off
I
1
Layer for insertion
Symbol name
CP 83 : Part 2 : 2000
- Description of No. - symbol 4.
Fire (for smoke extract system
1 Graphic image (2D ( representation) I
Layer for insertion
Symbol name
Layer for insertion
Symbol name
??-ACON--E-
ACON0701
schematic)
5.
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
Graphic image (2D representation)
CP 83 :Part 2 : 2000 A.3.1.7 Ductwork symbols
No.
1.
2.
3.
Graphic image (2D representation)
Description of symbol Side access panel
~ayerforinsertion
symbol name
??-ACONDUCT-E-
ACON0801
I
??-ACON DUCT-E-
Bottom access panel
lndined drop in respect to air flow
Flexible connection (for dudwork)
??-ACON DUCT-E-
Square elbow with guide vanes
Radius elbow
Flexible duct
duct section
duct section
I
CP 83 : Part 2 :2000
A.3.2
Electrical
A.3.2.1 Lighting symbols
No. 1.
Description of symbol Fluorescentfitting (18W Batten)
Graphic image (2D representation)
-
7 -
(36W Batten)
T -r""" -
(58W Batten)
-
(2 x 18W Batten)
I--7 -
(2 x 36W Batten)
(2 x 58W - Batten)
7.
fluorescent fitting (18W Wall mounted batten)
-
-
(36W Wall mounted
( Layer for insertion ??-LIGT--E-
Symbol name LIGTO101
CP 83 : Part 2 :2000
Description of symbol Fluorescentfitting (58W- Wall mounted oatten)
Fluorescentfitting (2x l8W- Wall mounted batten)
Fluorescentfitting (2x 36W Wall mounted batten)
-
Fluorescentfitting (2 x 58W Wall mounted batten)
-
Fluorescent fitting (300x 600)
Fluorescent fitting (18W Wall mounted)
-
Fluorescent fitting (600 x 600)
Fluorescentfitting (300 x 1200)
Fluorescentfitting (36W Wall mounted)
-
Graphic image (2D representation)
Layer for insertion
Symbol name
??-LIGT--E-
LlGTOlO9
CP 83 : Part 2 : 2000
I Graphic image (2D
18.
Description of symb61 Fluorescent fitting
19.
Circular light fitting
I
20.
Wall mounted light fitting
21.
Ceiling lighting point
22.
Wall lighting point
23.
Spot light
24.
Wall mounted spot light
25.
Flood light
26.
Wall mounted flood light
No.
I
Layer for insertion
representation) ??-LIGT--E-
I
I
I
I
I ??-LIGT--E-
I
1
I
I
I
I
I
I ??-LIGT--E-
I
I ??-LIGT--E-
I ??-LIGT--E-
??-L IGT--E-
I
I
I ??-LIGT--E-
Symbol name
CP 83 : Part 2 : 2000
No. 27.
I Graphic image (2D Description of symbol 1 representation) Type of luminaries for (
Layer for insertion
Symbol name
??-LIGT----E-
LIGT0127
Layer for insertion
Symbol name
(n- denotes type of light fdting)
28.
29.
30.
Emergency lighting
Emergency lighting wall mounted
Downlight
A.3.2.2 Lighting switches symbols
No.
1.
Description of symbol Single-pole lighting switch, 1-way (one gang)
Graphic image (2D representation)
l '
2. switch, I-way (one gang, metalclad)
3.
Lighting switch, 2-way (one gang)
6
Lighting switch, 2-way (one gang, metalclad) fi
CP 83 : Part 2 :2000
No.
5.
6.
7.
Description of symbol Intermediate lighting switch (one gang)
I Graphic image (2D
1 representation) I
I I
Intermediate lighting switch (onegang, metaldad)
I
DouMepole lighting
switch,1-way (one
P
gang)
8.
9.
10.
11.
Doublepole lighting switch, 1-way (one gang, metaldad)
Dimmer c/w switch
I
/C
I
20AdouMepde switch cEw neon i n d i i lamp and marked 'hater heat& I
Waterproof lighting
I
switch
12.
13.
-
I
Splashproof lighting switch
Ftamepoof lighting swwl
I
FPr
Layer for insertion
Symbol name
??-LIGTSWIT-E-
LIGT0205
CP 83 :Part 2 :2000
No.
-
Description of
Graphic image (2D representation)
Layer for insertion
Symbol name
14.
- Dimmer switch panel 15.
I
(conventional type)
16.
17.
Dimmer switch panel (digital type)
Dimmer rack
Threepole lighting switch, 1-way (one gang)
I
i T h w lighting switch, 1-way (one gang, metaldad)
A3.2.3 Electrical switches symbols
[ No. I Description of 1.
symbol Fireman's switch
I Graphic image (2D
Layer for insertion
Symbol name
??-ELECSWIT-E-
ELECOl01
representation)
CP 83 :Part 2 :2000
No. 3.
Description of symbol Belfswitchmarked with "Bel" symbol
Graphic image (2D representation)
Layer for insertion
Symbol name
??-ELECSWIT-E-
ELECOlO3
A.3.2.4 Power symbols No.
1 Description of
Graphic image (2D representation)
I Layer for insertion ??-ELEC--E-
2.
13A fuseconnection unit wlo switch
Symbol name
CP 83 : Part 2 :2000
No. ( Description of symbol 13A connector unit 3.
+-
I Graphic image (2D
I Layer for insertion 1 Symbol name
representation) ??-ELEC--E-
ELEC0203
(rating as shown)
5.
15A connector unit
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)
-l-l outlet (one gang)
9.
13Aswitchsocket outlet (one gang, metaldad)
??-ELEC--E-
ELEC0209
10.
13Aswitchsocket outlet (two gang)
??-ELEC--E-
ELEC0210
CP 83 :Part 2 :2000
No.
11.
12.
Graphic image (2D representation)
Description of syrnbo~ 13A switch socket outlet (two gang, metalclad)
( Layer for insertion
I
IS switch socket 13.
wB I
I
I
( ??-ELEG-E-
outlet
14.
15.
??-ELEC---E-
15A switch socket outlet (metaldad)
I
??-ELEC--E-
13Aswitchsocket outlet (floor mounted
type)
16.
??-ELEC--E-
13A splashproof
switch socket outlet
8 17.
18.
13A switch socket outlet (mounted on floor pedestal)
13A switch socket outlet (twogang) (mounted on floor pedestal)
7
19.
-
13A switch socket outlet (one gang, mountedat high level)
Symbol name
I
??-ELEG-E-
1% weatherproof switch socket outlet
]
??-ELEG-E-
8 ??-ELEC--E-
XP ??-ELEG-E-
ELEC0211
CP 83 : Part 2 :2000
Description of symbol 13A switch socket outlet (one gang, metalclad, mounted at high level)
Graphic image (2D representation)
Layer for insertion
Symbol name
??-ELEC--E-
ELEC0220
Layer for insertion
Symbol name
??-LGTN--E-
LGTNOI01
A.3.2.5 Lightning protection symbols
No.
Description of
I Graphic image (2D representation)
- symbol
Air terminal
1.
2.
3.
Earth pit inspection
Lightning stub
A.3.2.6 Single line diagram symbols No. 1.
1 Descriptionof / symbol 1 AirlOil SF6 circuit breaker (ACBIOCBNCB) Rating as shown
I Graphic image (2D I representation)
I
Moulded case circuit breaker (MCCB) 1 miniature circuit breaker (MCB) Rating as shown Residual currentoperated circuit breaker (RCCB) Rating and sensitivity as shown
L
I Layer for insertion 1 ??-ELEC--E-
I
CP 83 :Part 2 :2000
No.
Description of symbol Automatic Transfer Swih Rating as shown
Earth leakage relay cAw time lag
l D M n overcurrent protedive relay with instantaneous hi-set element (without hiset 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
Graphic image (2D representation)
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
Graphic image (2D representation)
Layer for insertion ??-ELEC--E-
Symbol name
CP 83 : Part 2 :2000
- Description of No.
22.
symbol Meter panel
23.
Shunt trip relay
24.
Tlme-lag relay
25.
Dierential unit protection relay
26.
Earth, general symbol
27.
HRC fuse (rating as shown)
28.
29.
Selector switch
Indicator light
R
Y
B
m
30.
Layer for insertion
Graphic image (2D representation)
Normally dose contact
Symbol name
CP 83 :Part 2 : 2000
No.
I Description of
( symbol 31.
1 Normally open
32.
Contactor coil
I Graphic image (2D ( representation)
I
r,l 33.
34.
Current transformer (dass ratio and burden as shown)
1
Zero current transformer
35.
Voltage transformer
36.
Power transformer (capacity and voltage ratio as shown)
I
37.
1
I
1 I
I
Standbv Generator Set (SGS)
I
T A
-
38.
Time switch c/w bypass!
Earthing point
r;?
Layer for insertion
Symbol name
CP 83 : Part 2 :2000
Description of symbol HRC fused t a p e d unit (rating as-shown)
MCCB t a m unit (ratingas shown)
Cable end dw cable termination kit
Balancedearth 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
Symbol name
??-ELEC--E-
ELEC0340
CP 83 : Part 2 :2000
No. 49.
Description of symbol Temperature alarm
50.
Temperature trip
51.
52.
53.
Graphic image (2D representation)
Transformer endosure door interlock
Low oil level trip
Gas pressure alarm
54. Gas pressuretrip
55.
56.
57.
Emergency stop button & key reset
Remote trip push button
Current test terminal
CTT
(-1
Layer for insertion
Symbol name
??-ELEC--E-
ELEC0349
CP 83 :Part 2 :2000
No. Description of - symbol 58.
59.
Neonpotential indicator
Earthi switch (rating as shown)
Currenttransducer 60. (Cup:4-20rnA)
61.
Voltage transducer
(W: d m )
62.
63.
64.
65.
66.
Power transformer (capacity and voltage ratiossshown)
Jwlcbbn box
Dimct arrline starter
Sar-dela starter
Graphic image (2D representation)
I Layer for insertion ??-ELES-E-
Symbol name ELEC0358
CP 83 : Part 2 :2000
-
Description of symbol 67. Motor No.
68. Cubide heater
69.
70.
71.
72.
73.
74.
75.
-
KW transducer 3phase 4 wire unbalance type
2channel pulse integratorwith output for BMS monitor
Isolating switch (rating as shown)
Graphic image (2D representation)
Layer for insertion
??-ELEG--E-
Symbol name
CP 83 :Part 2 :2000
No.
76.
77.
Description of symbol Fuse, general symbol
I Graphic image (2D I representation) I
Layer for insertion
Symbol name ELEC0376
I
Fuse switch
I
78.
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
Graphic image (2D representation)
Layer for insertion
Symbol name
??-ELECUNDR-E-
ELEC0401
CP 83 :Part 2 : 2000
A.3.2.8 Telecommunication symbols
No.
1.
Description of symbol Telephone outlet
2.
Telephone outlet mounted flushed with floor finishes
3.
Telephone outlet (fkm mounted type)
4.
Telephone outlet mounted on floor pedestal
5.
Telephone termination box (terminal box) (10 pais)
6.
Private automatic branch exchange
7.
Control console
8.
Main distribution
frame
9.
Distribution panel
Graphic image (2D representation)
Layer for insertion ??-TCOM--E-
Symbol name
CP 83 :Part 2 : 2000
-
No. 10.
~escriptionof ymbol ~terrnediate istribution frame
11.
bmputer outlet
12.
h p u t e r outlet
13.
14.
15. 16.
17.
18.
-
!-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
iymbol name
'?-TCOM--E-
'COM0110
No. 19.
Description of symbol lportterminalunit (end unit)
Graphic image (2D representation)
Layer for insertion
Symbol name
??-TCOM--E-
TCOMOl19
??-TCOM--E-
TCOM0120
El
rn
20.
2-port terminal unit (end unit)
21.
4-port terminal unit (end unit)
??-TCOM--E-
TCOMOl2l
22.
Distribution amplifier
??-TCOM--E-
TCOM0122
??-TCOM--E-
TCOM0123
Layer for insertion
Symbol name
??-WAN--E-
TVANOl 03
D 23.
75 ohm resistor
75ohm C
A3.2.9 N antenna Icable symbols No. 1.
Description of symbol TVFM outlet
Graphic image (2D representation)
r TVIFM co-axial outlet
3.
TVIFM co-axial outlet
CP 83 :Part 2 :2000
Graphic image (2D representation)
Description of symbol Teleconferencing cable outlet
Layer for insertion
Symbol name
??-WAN--E-
TVANO104
Layer for insertion
Symbol name
??-SECU--E-
SECUOlOl
-
Antenna mast
Singapore Cable V i i
A3.2.10 Security System Symbols
No.
1.
2.
3. 4.
5.
-
Graphic image (2D representation)
Description of symbol Doorcontact
I
Magneticshutter door
Watchman tour sWion
I
n
CP 83 : Part 2 : 2000
Description of symbol Infra-red detector
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SECU--E-
SECUOlO6
Vibration detector
Motion detector
Panic bolt lock
Uedric lock interface point (electric lock to be provided by other)
SECUOl 10
CCTV monitor
SECUOl 11
Operator terminal
Printer
Fixed type CCTV came$ (wall mwnted/suspended)
CP 83 : Part 2 :2000
No. 15.
16.
17.
18.
19.
20.
21.
22.
Description of symbol Panmlt type CCTV camera
1 Graphic image (20
Layer for insertion
Symbol name
representation)
PaflltlZoom type CClV camera
weatherprooftype CClV camera
CCTV camera with standard lens concealed in the wall or ceiling (minimum 050mm opening required) CCTV camera with pin M e lens concealed in the wall or ceiling (minimum 0 10mm opening required)
P
c 3
Video casette tape recorder
Sequential switcher
SECUOl20
I
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
Graphic image (2D representation)
Layer for insertion
Symbol name
CP 83 :Part 2 :2000
No.
Graphic image (2D representation)
Description of
symbol - Visitor call panel 32.
33.
Layer for insertion
Symbol name
??-SECU--E-
Video phone
34.
A3.2.11 Public address system symbols
No.
1.
2.
3.
Description of symbol Vdurne contrd
Graphic image (2D representation)
??-PUBASPKR-E-
Ceiling loudspeaker (concealed)
n
Ceiling mounted loudspeaker (surface)
4.
5.
-
I
Ceiling loudspeaker (for emergency announcement only)
Layer for insertion
I
Symbol name
Description of symbol Horn loudspeaker
Sraphic image (2D epresentation)
_ayerfor insertion ??-PUBASPKR-E-
PUBAO10'1
MIC input
Speaker d u m e
Amplifier (rating as s-)
PA interfacefor local reinforcement sound system
Overtide control for the local sound system
A.3.2.12 Fan symbols No. 1.
Description of symbol Ceiling fan
Graphic image (2D representation)
r Ceiling oscillating fan
Symbol name
n
) Layer for insertion ??-FANS--E-
CP 83 : Part 2 :2000
3.
Description of symbol Wall mounted fan
4.
Fan regulator
No.
Graphic image (2D representation)
I Layer for insertion
I Symbol name
??-FANS--E-
FANS0103
Layer for insertion
Symbol name
7
5.
6.
Axial fan
Pmpeller fan
A3.2.13 Sign symbols No.
1. 2.
3.
Graphic image (2D representation)
3escription of symbol 3 i t light
??-SIGN--E-
I
Exit light (single sided directional a m Facing left)
I
I ??-SIGN--E-
I
Exit light (single sided directional amw facing right)
Exit light (double sided directional arrow facing left)
[
;-EXIT?
I
CP 83 :Part 2 :2000
Description of symbol Exii light (double sided directional arrow facing right)
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SIGN--E-
Exii light (single sided directional arrow facing both left and right)
SlGNOl 06
Exit light (double sided directional a m facing both left and right)
SlGNOl 07
Gas discharge sign (flashing type)
Evacuate sign (flashing type)
Traffolyte warning sign
Beacon light (rotating sign)
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)
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SPRK--E-
FIRE0101
CP 83 : Part 2 :2000
Description of symbol Dry pendant sprinkler
I Graphic image (2D
10.
Exposed sprinkler head (schematic)
I
11.
Concealed sprinkler head (schematic)
No. 9.
1 Layer for insertion
representation) ??-SPRK--E-
A3.3.2 Valve symbols
No.
1.
2.
3.
Description of symbol Gate valve
Graphic image (2D representation)
Layer for insertion
Symbol name
??-FIRE--E-
FIRE0201
Check valve
Y type strainer
1
I ??-FIRE--E-
Flexible connection
1 ??-FI RE--EI
Solenoid valve
CP 83 :Part 2 :2000
No. 6.
Description of symbol Wotorised valve
7.
Monitoring valve
8.
flow switch
9.
Subsidiary valve [monitored stop
10.
Buttefly valve
( Graphic image (2D
??-FI RE--E-
I
-
11.
Pressure gauge cEw stop cock
12.
13.
Sluice valve
Layer for insertion
representation)
Symbol name
CP 83 : Part 2 :2000
A.3.3.3 Detector symbols
No. 1.
2.
3.
4.
Description of symbol Smoke detector (ionisation) exposed at false ceiling
Graphic image (2D representation)
Smoke detector (ionisation) raised floor / concealed in ceiling void
Layer for insertion
Symbol name
??-FI RESMOK-E-
FIRE0301
??-FIRESMOK-E-
FIRE0302
1 1 Smoke detector (optical) exposed at false ceiling
Smoke detector (optical) raised floor / concealed in ceiling void
5.
Smoke detector (combination of opticalheat) exposed at false ceiling
??-FIRESMOK-E-
FIRE0305
6.
Smoke detector (combination of opticallheat) raised floor 1 concealed in ceiling void
??-FIRESMOK-E-
FIRE0306
7.
Smoke detector (explosion proof) exposed at false ceiling
??-FIRESMOK-E-
FIRE0307
8.
Smoke detector (explosion proof) raised floor / concealed in ceiling void
??-FIRESMOK-E-
FIRE0308
CP 83 : Part 2 :2000 No.
I
Description of
1
Heat thermal detector
( symbol 9.
at false ceiling eroosed
Heat thermal detector (fixedtype)raised floor / concealed in ceiling void
I Graphic image (2D ( representation) I
Layer for insertion
Symbol name FIRE0309
I
??-FI REHEAT-E-
??-FI REHEAT-E-
(rate of rise
exposed at false ceiling Heat thermal detector (rate of rise temperature) raised floor Iconcealed in ceiling void
A.3.3.4 Fire alarm symbols No.
1.
Description of symbol Fire alarm bell (indoor)
2.
Fire alarm bell (outdoor/ w=therproof)
3.
Manual call point I breakglass (indoor)
4.
Manual call point I breakglass (outdoor1 weatherproof)
??-FI REHEAT-E-
Graphic image (2D representation)
I Layer for insertion ??-FI REALAM-E-
??-FI REALAM-E-
??-FI REALAM-E-
??-FI REALAM-E-
Symbol name
CP 83 : Part 2 :2000
5.
Description of symbol Floor mimic panel chrv LED indications in colour perspex
6.
Zone floor chart
No.
I Graphic image (2D
I Layer for insertion
representation) ??-FI REALAM-E-
??-FI REALAM-E-
??-FI REALAM-E-
7.
Main alarm panel chrv battery compartment
??-FI REALAM-E-
Master mimic panel LED indications
??-FI REALAM-E-
10.
Monitoring module
??-FI REALAM-E-
11.
Control module
??-FI REALAM-E-
8.
9.
C/W
C 12.
13.
Cdour monitor (textlgraphics) and keyboard
-7 Printer (alarm 1 system status)
I
I
I
??-FI REALAM-E-
CP 83 : Part 2 :2000
Graphic image (2D re~resentation)
s mbol Data transmission modem
15.
1 BMS interface board
Layer for insertion
Symbol name
??-FI REALAM-E-
FIRE0414
??-FI REALAM-E-
A.3.3.5 Miscellaneous symbols
No.
1.
2.
3.
Description of symbol Two-way bmeching inlet
I Graphic image (2D
Four-way breeching inlet
1
I Layer for insertion
FIRE0501 n
Two-way breeching inlet (schematic)
Four-way breeching inlet (schematic)
Control valve
Contrd valve (schematic)
Symbol name
representation)
I I
I
I
1 ?? FIRE--E-
I
CP 83 : Part 2 :2000
No.
7.
Description of symbol Dry riser landing valve
8. Dry riser landing valve (schematic)
9.
10.
11.
12.
13.
14.
15.
-
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)
Graphic image (2D representation)
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)
Graphic image (2D representation)
Layer for insertion
Symbol name
CP 83 : Part 2 : 2000 No. 25.
I Description of I Graphic image (2D I representation) 1 2.5 kg ABC dry power I I symbol
I clw steel cabinet.
I
Layer for insertion
Symbol name
??-FI RE--E-
FIRE0525
clw steel cabinet.
I
I
27.
1 9 kg ABC dry power I
28.
1 2.5 kg C&
I
I
fire
1
extinguisher clw steel cabinet
1
extinguisher clw steel cabinet
1 inside ceiling level I at
32.
Concealed n d e inside ceiling void I inside raised floor space
33.
Gas cylinders clw manifold
CP 83 :Part 2 :2000 7
No. 7
34.
35.
Graphic image (2D representation)
Description of symbol Siren
Layer for insertion
Symbol name
??-FIRE--E-
FIRE0534
Total flooding gas control panel c/w battery compartment
36. Emergency manual release unit
37. Breathing apparatus A.3.4 Plumbing and sanitary A.3.4.1 Sanitary symbols
No.
1.
2.
3.
4.
Descri~tionof symbol Manhole
1 Graphic image (2D representation)
I Layer for insertion
Symbol name
'
??-SAN I--E-
SANlOl 01
??-SANI--E-
Inspector chamber
I
Hatch-box (HB)
1
Sump
I
SANlOlO4
CP 83 : Part 2 :2000
No. 5.
Description of symbol Grease trap
6.
7.
8.
Floor-trap (FT)
9.
10.
11.
12.
13.
Floor-waste (FW)
Screen chamber
Cast iron gully trap
Silt sump
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SAN I--E-
SANlOlO5
CP 83 : Part 2 :2000
Description of symbol RC hanger (for drain lines)
No.
I Graphic image (2D I representation)
1
I Layer for insertion I Symbol name I I 1 ??-SANI--EI SANlO114
I
Gully trap
0
GT
Rain water down pipe
A.3.4.2 Valve symbols
Graphic image (2D representation)
s mbol
Layer for insertion ??-SAN I--E-
1 Check valve I
2.
3.
'Y' type strainer
4.
Flexible connection
1 Solenoid valve I
5.
I
Symbol name
CP 83 : Part 2 :2000
No.
6.
7.
8.
Description of symbol Motorised valve
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SANI--E-
C a p d valve
Automatic air r d i valve
9.
Pressure gauge &
cock
10.
Globe valve
A3.4.3 Domestic hot and cold water system symbols No.
1.
2.
Description of symbol Vortex inhibir
Graphic image (2D representation)
I Layer for insertion I ( ??-DWAT--E-
??-D WAT--E-
Vortex inhibir (schematic)
6% 3.
-
Jockey pump
??-D WAT--E-
Symbol name DWATOlOl
CP 83 : Part 2 :2000
Description of symbol Pump
Pump (schematic)
Graphic image (2D representation)
Layer for insertion
Symbol name
??-D WAT--E-
DWATO105
Storage water heater
Meter
Sub-rneter
DWATO108
Tap point
DWATO109
Tap point (schematic)
DWATOl 10
Bib tap dw cap and lock (schematic)
Puddle flange
CP 83 :Part 2 :2000
Description of symbol Ball float valve
I Graphic image (2D
Level sensor switch
FFI L
Water tank air vent
Pressure reduce valve
Pressure reducing valve and pressure Sensor
I
Water hammer
I
Water hammer absorber (schematic)
n
Isolator for water doset 1 urinal auto sensing unit (provided by
,---
I
Pressure vessel
Layer for insertion
Symbol name
? ? DWAT--E-
DWAT0113
representation)
I
CP 83 : Part 2 :2000
Description of symbol Pressure vessel (schematic)
Vent cowi
Graphic image (2D representation)
Layer for insertion
Symbol name
Layer for insertion
Symbol name
I
Vent cowi (schematic)
Control panel
I I
Cdd water tank
A3.4.4 Miscellaneous symbols
1.
Description of symbol Grease interceptor
2.
Dilution tank
3.
Strainer basket
No.
Graphic image (2D representation)
??-SANI--E-
m I
CP 83 :Part 2 :2000
Graphic image (2D representation)
Layer for insertion
Symbol name
??-SANI--E-
SAN10304
Gas symbols
No.
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 representation)
1 Layer for insertion ??-GASP--E-
( Symbol name GASP0101
CP 83 : Part 2 :2000
Description of symbol Service Valve (SW
I Graphic image (2D
Layer for insertion
Symbol name
( representation)
I
GASPO104
I
Ball valve
GASPO106
Gate valve
Solenoid valve
I GASPO108
Non-retum valve
I
Syphon
GASPO110
Gas meter
GASPO111
Gas detector
GASPO112
CP 83 : Part 2 :2000
I No.
( Description of
13.
symbol Detector panel
14.
Low pressure switch
15.
Highpressureswitch
19.
Pressure regulator
I Graphic image (2D
Layer for insertion
Symbol name
??-GASP--E-
GASPO113
representation)
P P
GASPO116
CP 83 :Part 2 :2000
No. 22.
Description of symbol Riser to below
23.
Riser from below
24.
Dropper from above
25.
Dropper c/w valve
26.
ChanneUTrench or sleevebox-up
27.
Ductfoot support
28.
syphon 1%
29.
Pipe at high level
30.
Pipe at low level
Sraphic image (2D =presentation)
Layer for insertion
Symbol name
??-GASP--E-
GASP0122
CP 83 : Part 2 :2000
No.
.
I Description of symbol Concealed1 Underground gas pipe
( Graphic image (2D
/
Layer for insertion
1 Symbol name
representation) ??-GASP--E-
-
6
-
MATLSIZEI
GASP0131
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 competitivenessand economic growth for a better quality of l i e 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 infrastructuredevelopment. 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 Cooperation (APEC) Sub-committee for Standards and Conformance (SCSC) and in the ASEAN Consultative Committee for Standards and Quality (ACCSQ).