Water supply - Backflow prevention devices, Materials, design and performance requirements.; Tubes, pipes and hoses, and fittings therefor, e.g. joints, elbows, flanges, of plastics (HS 3917); Tube or pipe fittings "e.g. couplings, elbows, sleeves", of iron or steel (HS 7307); Copper tube or pipe fittings "e.g., couplings, elbows, sleeves" (HS 7412); Tubes, pipes and tube or pipe fittings "e.g., couplings, elbows, sleeves", of nickel (HS 7507); Aluminium foil, "whether or not printed or backed with paper, paperboard, plastics or similar backing materials", of a thickness "excl. any backing" of <= 0,2 mm (excl. stamping foils of heading 3212, christmas tree decorating material) (HS 7607); Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, incl. pressure-reducing valves and thermostatically controlled valves; parts thereof (HS 8481)
WaterMark Certification Scheme - AS/NZS 2845 - Water supply - Backflow prevention devices, Part 1: Materials, design and performance requirements. (87 page(s), in English)
This technical specification sets out the requirements for the materials, design, performance and testing of mechanical backflow prevention devices that are used for the protection of water supplies. The backflow prevention devices covered in this document are of the following types:
(a) Atmospheric vacuum breaker (AVB).
(b) Hose connection vacuum breaker (HCVB).
(c) Dual check valve with atmospheric port (DCAP).
(d) Dual check valve (Dual CV).
(e) Dual check valve with intermediate vent (Du CV).
(f) Pressure-type vacuum breaker (PVB).
(g) Double check valve (DCV).
(h) Double check detector assembly (DCDA).
(i) Reduced pressure zone device (RPZD).
(j) Reduced pressure detector assembly (RPDA).
(k) Spill-resistant pressure vacuum breaker (SPVB).
(l) Beverage dispenser dual check valve with atmospheric port (BDDC).
(m) Pipe interrupter device (PID).
(n) Single check valve (testable) (SCVT).
(o) Single check detector assembly testable (SCDAT).
The Plumbing Code of Australia (PCA) requires that most products intended for use in plumbing and drainage installations in or around buildings to be evaluated and certified to WaterMark product specifications. WaterMark certification to an applicable product specification provides a process to evaluate and authorize 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).