This Specification sets out the requirements for noise reduction pipes and fittings systems, either made of a compound of Polypropylene (PP) or Polyethylene (PE) and inert mineral additives.
Noise reduction pipes and fittings are designed for waste and drainage installations with a maximum continuous discharge operating temperature of 60°C and may be used at intermittent discharge operating temperatures up to 95°C. These pipes and fittings are for use in above ground waste installations inside buildings.
The proposed revisions for the 2025 version include the following:
(i) Scope expansion to include noise reduction piping made from Polyethylene (PE).
(ii) Technical requirements for noise reduction piping made from PE added to the body of the specification.
(iii) Marking requirements for the material compound (PP or PE) to be labelled on the product
(iv) Clarification that these products are for installation as an individual system and not to be combined other than for interconnection purposes (in accordance with AS/NZS 3500.2 Clause 10.13 and Table 10.13.1).
(v) Inclusion of compliance Table A3 and A4
Note: Only comments relating to the proposed changes highlighted within the draft document will be considered.
Consultation documents
Download the WMTS 508 - Plastics Piping Systems for Soil and Waste Discharge with Noise Reduction Characteristics Public Comment Draft (PDF 517 KB):
Download the WMTS 508 - Plastics Piping Systems for Soil and Waste Discharge with Noise Reduction Characteristics Public Comment Draft (DOCX 271 KB):
