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It’s Time to Test.

It’s Time to Test. AS2845.3 2010 A standard that works. 2013 National Backflow Presentation Conference. The principle reasons that the AS2845.3 2010 is needed is that AS2845.3 1993 is technically incorrect and out of date.

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It’s Time to Test.

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  1. It’s Time to Test. AS2845.3 2010 A standard that works

  2. 2013 National Backflow Presentation Conference • The principle reasons that the AS2845.3 2010 is needed is that AS2845.3 1993 is technically incorrect and out of date.

  3. An installed SCVT for a fire hydrant installation. AS2845.3 1993, no test procedure.

  4. 2013 National Backflow Presentation Conference • AS2845.3 1993 has three test procedures for mechanical devices, Appendix D for PVBs- technically incorrect. The tester cannot determine whether the inlet isolating valve is watertight or not. Step n. Amended to test

  5. 2013 National Backflow Presentation Conference incorrect Incorrect without change

  6. 2013 National Backflow Presentation Conference • Appendix E for RPZDs- technically incorrect. The tester cannot determine whether the downstream non- return valve is watertight or not. Step k, does not interconnect downstream of the 2nd check valve to the mains pressure, upstream of the 1st check valve. NO TEST.

  7. Incorrect without change Incorrect without change

  8. 2013 National Backflow Presentation Conference • The testing fault which faced all testers was to determine the tightness of the downstream isolating valve. DCV’s when tested, a competent tester had doughts' as to whether they pass or not. This procedure was unacceptable as an Australian Standard Steps (q) to (t).

  9. 2013 National Backflow Presentation Conference • Quality Assurance? • AS2845.3 1993 was always technically incorrect. The reason to change.

  10. 2013 National Backflow Presentation Conference • There are currently 7 mechanical Testable Backflow Prevention Devices which require a licensed backflow qualified plumber to test. • AS2845.3 2010 ensures all devices has a competent test procedure.

  11. 2013 National Backflow Presentation Conference

  12. 2013 National Backflow Presentation Conference • AS 2845.3 2010 The BIG difference. • The first test for all devices is to determine whether or not the upstream and downstream isolating valves are water tight. If either valve is leaking the test is cannot continue. Results would be invalid if the test continued. • The test procedure cannot be falsified.

  13. 2013 National Backflow Presentation Conference • The test procedures for all devices are designed for a time efficient test but more importantly are accurate. Following the test procedures from the AS2845.3 2010 will ensure that the client will receive a test report which accurately conveys the performance of the backflow device. • Clause 1.4.2. AS2845.3 2010

  14. 2013 National Backflow Presentation Conference • It’s the end of the presentation ,but it’s to test with the only current Australian Standard.AS2845.3 2010.

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