WORLD TRADE  
ORGANIZATION  G/TBT/N/SGP/6 
14 November 2008  
 (08-5550) 
Committee on Technical Barriers to Trade Original:   English 
  
 
 
NOTIFICATION 
 
The following notification is being circ ulated in accordance with Article 10.6 
 
1. Member to Agreement notifying:  SINGAPORE
  
If applicable, name of local governme nt involved (Article 3.2 and 7.2):     
2. Agency responsible:  Public Utilities Board 
Name and address (including telephone and fax numbers, email and web-site 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above :   
3. Notified under Article 2.9.2 [ X ], 2.10.1 [   ], 5.6.2 [   ], 5.7.1 [   ], Other:   
4. Products covered (HS or CCCN where applicable, otherwise national tariff heading. 
ICS numbers may be provided in addition, where applicable):  Please see Annex 
attached 
5. Title, number of pages and language(s) of the notified document:  Draft Public Utilities 
(Water Supply) (Amendment) Regulations 2008, 4 pages, English - Notice will be published 
in the Republic of Singapore’s G overnment Gazette when adopted. 
6. Description of content:  All products listed (namely, taps, flushing cisterns, and urinals) 
must be registered and labelled  to provide information on their levels of water efficiency if 
they are to be supplied in Singapor e.  In order to register, the products must be tested to the 
test standards and requirements  indicated in the Annex, whic h would be used to determine 
their water efficiency. For more deta ils, please refer to PUB’s website – 
https://app.pub.gov.sg/wels/  
7. Objective and rationale, including the nature of urgent problems where applicable:  To 
provide information on water efficiency of taps , flushing cisterns and urinals to consumers via 
labels.  
8. Relevant documents:   Draft Public Utilities (Water Supply) (Amendment) Regulations 2008, 
4 pages, English - Notice will be published  in the Republic of Singapore’s Government 
Gazette when adopted   
9. Proposed date of adoption:   
Proposed date of entry into force:   } 1 July 2009 
10. Final date for comments:  19 December 2008 G/TBT/N/SGP/6 
Page 2  
 
  11. Text available from: National enquiry point [  ], or address, telephone and fax numbers, 
e-mail and web-site addresses, if available of the other body:    
Ramahad Singh 
Deputy Director Water Supply (Network) Department 
PUB Singapore 
Tel : (65) 6731 3406; Mobile:  (65) 9730 3851 Fax : (65) 6731 3023 
Email: ramahad_singhh@pub.gov.sg   
 Lydia Loh 
Policy Executive 
Water Studies Division 
Ministry of the Environment and Water Resources 40 Scotts Road   #10-01 Environment Building    Singapore   Republic of Singapore Tel.:(65) 6731 9193  Mobile: (65) 9710 6786    
Fax: (65) 6731 9456 
Email: lydia_loh@mewr.gov.sg 
 
  G/TBT/N/SGP/6 
 Page 3 
 
 
  Annex A 
DETAILS OF RATINGS FOR WATER EFFICIENCY LABELLING 
Products/ 
Fittings Test Standards and Requirements 
For Water Efficiency Flow 
Rate/Flush 
Volume 
Requirements 
for Water 
Efficiency 
Labelling 
 
Shower 
Taps and 
Mixers 
(HS 
Codes: 
84818051 
84818059 
84818091)  
For Shower Taps (cold water only), 
Self-Closing-Delayed-Action Shower Taps, Sensor (including Self-
Closing-Delayed-Action) Shower Ta ps or Combination Shower Tap 
Assemblies: 
 
Either of the following – 
 
Annex A of SS448 : Part 3 : 1998 
or 
Section 10.3 of BS5412 : 1996 
 
For mechanical shower mixers with a single or separate control 
device for adjusting flow rate and temperature: 
 
Section 10 of BS EN 817 : 1998 
 
(with Constant Flow Regulators or restrictors and aerators attached.  
Tests to be conducted in increments of 0.5 bars from 1.0 to 3.0 bars) 
  
Pressure Range 
from 1.0 to 3.0 
bars 
 
Zero Tick : 
> 9 litres/min 
 
Good (1 Tick) : 
> 7 to 9 
litres/min 
 
Very Good (2 
Ticks) : 
> 5 to 7 
litres/min 
 
Excellent (3 
Ticks) : 
5 litres/min or 
less 
 
Basin Taps 
and Mixers 
(HS 
Codes: 
84818051 84818059 
84818091) 
  
 
  
 
  
 
  
  
For Pillar Basin Taps, Self-Clo sing-Delayed-Action Basin Taps, 
Sensor (including Self-Closing-De layed-Action) Basin Taps or 
Combination Basin Tap Assemblies: 
 
Either of the following – 
 
Annex A of SS448 : Part 3 : 1998 
or 
Section 10.3 of BS5412 : 1996 
 
For mechanical basin mixers with a single or separate control device 
for adjusting flow rate and temperature: 
 
Section 10 of BS EN 817 : 1998 
 
(with Constant Flow Regulators or restrictors and aerators attached.  
Tests to be conducted in increments of 0.5 bars from 1.0 to 3.0 bars)  
Pressure Range 
from 1.0 to 3.0 
bars 
 
Zero Tick : 
> 6 litres/min 
 
Good (1 Tick) : 
> 4 to 6 
litres/min 
 
Very Good (2 
Ticks) : 
> 2 to 4 
litres/min 
 
Excellent (3 
Ticks) : 
2 litres/min or 
less G/TBT/N/SGP/6 
Page 4  
 
  Products/ 
Fittings Test Standards and Requirements 
For Water Efficiency Flow 
Rate/Flush 
Volume 
Requirements 
for Water 
Efficiency 
Labelling 
 
Sink/Bib 
Taps and 
Mixers 
(HS 
Codes: 
84818051 84818059 
84818091)  
For Bib Taps, Sink Taps (cold wa ter only), Sensor Sink Taps or 
Combination Sink Tap Assemblies: 
 
Either of the following – 
 
Annex A of SS448 : Part 3 : 1998 
or 
Section 10.3 of BS5412 : 1996 
 
For mechanical sink mixers with a single or separate control device 
for adjusting flow rate and temperature: 
 
Section 10 of BS EN 817 : 1998 
 
(with Constant Flow Regulators or restrictors and aerators attached. 
Tests to be conducted in increments of 0.5 bars from 1.0 to 3.0 bars) 
  
Pressure Range 
from 1.0 to 3.0 
bars 
 
Zero Tick : 
> 8 litres/min 
 
Good (1 Tick) : 
> 6 to 8 
litres/min 
 
Very Good (2 
Ticks) : 
> 4 to 6 
litres/min 
 
Excellent (3 
Ticks) : 
4 litres/min or 
less 
 
Flushing 
Cisterns 
(HS 
Codes: 
39229019 
69101000 69109000 
73249010)  
SS 378 : 1996 - Volume of Discharge per Flush 
(Dual Flush Low Capacity Flushing Cisterns - Full Flush & 
Reduced Flush) 
 
 
  
 
 
 
  
 
  
 
  
 
  
 
   
Per Flush
 
 
Good (1 Tick) : 
> 4 to 4.5 litres 
(full flush) & 
> 2.5 to 3 litres 
(reduced flush) 
 
Very Good (2 
Ticks) : 
> 3.5 – 4.0 
litres 
(full flush) & 
> 2.5 to 3 litres 
(reduced flush) 
 
Excellent (3 
Ticks) : 
3.5 litres or 
less(++) 
(full flush) & 
2.5 litres or 
less 
(reduced flush)  G/TBT/N/SGP/6 
 Page 5 
 
 
  Products/ 
Fittings Test Standards and Requirements 
For Water Efficiency Flow 
Rate/Flush 
Volume 
Requirements 
for Water 
Efficiency 
Labelling 
 
Urinals 
and Urinal 
Flush 
Valves 
(HS 
Codes: 
39229019 
69101000 
69109000 84818099 
73249010)  
Volume of Discharge Test 
(Please refer to PUB website at 
http://www.pub.gov.sg/general/Pages/FittingAndStandards.aspx) 
  
Per Flush
 
Good (1 Tick) : 
> 1 to 1.5 litres 
 
Very Good (2 
Ticks) : 
> 0.5 to 1 litres 
 
Excellent (3 
Ticks) : 
0.5 litres or 
less(**) 
or Waterless 
Urinals 
 Note
: 
 
++ To pass laboratory simulation test on waste transpor tation efficiency in pipes prescribed by PUB if 
full flush volume is less than 3.5 litres. 
 
** To pass dilution tests prescribed by PUB if flush volume is less than 0.5 litres. 
   
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