SNZ AS/NZS 2845.3
Water supply – Backflow prevention devices Part 3: Field testing and maintenance of testable devices
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| Organization: | SNZ |
| Publication Date: | 14 February 2020 |
| Status: | active |
| Page Count: | 48 |
scope:
This Standard specifies requirements for field testing and maintenance of the following backflow prevention devices:
(a) Registered break tank (RBT).
(b) Registered air gap (RAG).
(c) Pressure-type vacuum-breaker (PVB).
(d) Spill resistant pressure vacuum-breaker (SPVB).
(e) Reduce-pressure-zone
(f) Double check valve (DCV).
(g) Reduced-pressure-det
(h) Double check detector assembly (DCDA).
(i) Single check valve (testable) (SCVT).
(j) Single check detector assembly (testable) (SCDAT).
(k) Atmospheric vacuum breakers (AVB).
NOTE Single check valve and single check detector assembly [Items (i) and (j)] do not apply to New Zealand).
Document History
SNZ AS/NZS 2845.3
February 14, 2020
Water supply – Backflow prevention devices Part 3: Field testing and maintenance of testable devices
This Standard specifies requirements for field testing and maintenance of the following backflow prevention devices:
(a) Registered break tank (RBT).
(b) Registered air gap (RAG).
(c)...