AS NZS 2845.3:2020 pdf free.Water supply – Backflow prevention devices Part 3: Field testing and maintenance of testable devices.
2.2 Test report
2.2.1 General
As a minimum, a test report shall include the following:
(a) Type of test including the following:
(i) Initial commissioning.
(i) Annual test.
(ii) Retest.
(iv) Audit test.
(b) Type and serial number of device.
(C) Owner and property details.
(d) Tester details.
(e) Date of inspection.
(f) Results of inspection and testing一pass/fail.
(g) Test kit serial number.
(h) Test kit calibration date.
(I) Appendix the valve has been tested to.
NOTE 1 The relevant authority having jurisdiction should be contacted in advance to confirm the test report format required.
NOTE 2 An example of a typical format for reporting test results for registered air gaps and registered break tanks is given in Appendix L.
NOTE 3 An example of a typical format for reporting inspection and maintenance tor backf low prevention devices is given in Appendix M.
2.2.2 Copies of test reports
A copy of the test report shall be retained and copies forwarded to the following:
(a) Relevant authority having jurisdiction.
(b) Owner of the device.
23 Acceptance criteria
The following acceptance test criteria shall be adopted:
(a) Registered air gap — The measured air gap conforms with Table A.3, Appendix A of AS 2845.2— 2010 (see Appendix A).
(b) Registered break tank (see Appendix A):
(I) An overflow is fitted and not obstructed.
(ii) No bridging devices are installed.
(iii) The measured air gap conforms with Appendix A of AS 2845.2—2010.
(iv) The measured total height calculation conforms with Appendix A of AS 2845.2—2010.
(c) Pressure-type vacuum-breaker and spill-resistant pressure vacuum-breaker (see Figure C.1 of Appendix C and Figure D.1 of Appendix D):
(i) The non-return valve measured differential pressure is 7 kPa or greater.
(ii) The air inlet valve opens at 7 kPa or greater. (iii) Upstream and downstream isolating valves are watertight.
(d) Reduced pressure zone device (RPZD) and reduced-pressure-detector assembly (RPDA) (see Figure E.1 of Appendix E and Figure G.1 of Appendix G):
(i) First check valve pressure differential is 35 kPa or greater.
(ii) Relieves to atmosphere at 14 kPa or greater.
(iii) Second check valve pressure differential is tight and 7 kPa or greater.
(iv) Main valve upstream and downstream isolating valves are watertight.
(v) For reduced-pressure detector assemblies, the sum of the main valve check valve pressure differential is greater than the bypass assembly pressure differentials.
(e) Single check valve (testable) (SCVT) and single check detector assembly (testable) (SCDAT) (see Figure 1.1 of Appendix I and Figure J.1 of Appendix J):
(i) Pressure differential of non-return valve is 7 kPa or greater.AS NZS 2845.3 pdf download.