G/TBT/N/AUS/131  
19 July 2021  
(21-5677) Page: 1/2 
Committee on Technical Barriers to Trade  Original:  English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member:  AUSTRALIA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible:  Australian Building Codes Board  
Name and address (including telephone and fax numbers , email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:   
Contact: Australia TBT Enquiry Point, Department of Foreign Affairs and Trade (DFAT), 
email: tbt.enquiry@dfat.gov.au  
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):  Taps, 
cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, incl. 
pressure -reduc ing valves and thermostatically controlled valves; parts thereof (HS 8481)  
5. Title, number of pages and language(s) of the notified document:  WaterMark 
Certification Scheme - WMTS -534:2021 Metallic pressure differential bypass valves used 
in heated water  systems (25 page(s), in English)  
6. Description of content:  This Technical Specification sets out the requirements for 
metallic pressure differential bypass valves used in heated water systems up to DN32. 
They are for continuous operating temperatures no t exceeding 85°C and pressures not 
exceeding 1000 kPa. This specification shall be read in conjunction with AS 1357.2.  
The Plumbing Code of Australia (PCA) requires that most products intended for use in 
plumbing and drainage installations in or around bui ldings to be evaluated and certified 
to WaterMark product specifications. WaterMark certification to an applicable product 
specification provides a process to evaluate and authorise products to enable their use in 
a plumbing and drainage installation. Thus  ensuring that the plumbing and drainage 
products are fit for purpose for which they are intended.  
This WaterMark Technical Specification (WMTS) was prepared in accordance with the 
Manual for the WaterMark Certification Scheme, Appendix 4, Protocol for Developing 
Product Specifications.  
The objective of  WaterMark Technical Specification is to enable product certification in 
accordance with the requirements of the Plumbing Code of Australia (PCA).  G/TBT/N/AUS/131  
 
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  7. Objective and rationale , including the nature of urgen t problems where 
applicable:   The objectives of the Scheme are to establish the requirements for product 
certification and authorisation under Part A2 of the PCA and:  
a) to provide a process to authorise products to enable their use in plumbing and drainag e 
installations as covered by the PCA, and  
b) to ensure that plumbing and drainage products are fit for the purpose for which they 
are intended and that their use in a plumbing and drainage installation throughout its 
serviceable life is suitable and does not create significant risks or any likely outcome of:  
(i) personal illness, loss, injury or death;  
(ii) on -site environmental degradation;  
(iii) contamination of the water resource;  
(iv) adverse impact on infrastructure (private or public);  
(v) contaminat ion of water supplies from the point of connection to the points of 
discharge; or  
(vi) wastage of resources (water and energy).  
Protection of human health or safety; Protection of the environment; Quality requirements  
8. Relevant documents:   
Manual for the WaterMark Certification Scheme  
9. Proposed date of adoption:  7 November 2021 ; This date is an approximate and subject 
to the development of the documents content.  
Proposed date of entry into force:  6-12 months from adoption; 6 months from 
adoption  
10. Final date for comments:  7 September 2021  
11. Texts available from:  National enquiry point [ ] or address, telephone and fax 
numbers and email and website addresses, if available , of other body:   
https://consultation.abcb.gov.au/engagement/wmts -534-2021/