AS/NZS 2845.1:2010
Water supply - Backflow prevention devices - Part 1: Materials, design and performance requirements
Standards New Zealandsuperseded
Pick a clause from the contents on the left to see community comments and worked examples, or jump into a section below.
Sections
- 1Scope and General
- 2Materials
- 3Common Design and Performance Requirements
- 4Atmospheric Vacuum Breaker (Avb)
- 5Hose Connection Vacuum Breaker (Hcvb)
- 6Dual Check Valve with Atmospheric Port (Dcap)
- 7Dual Check Valve (Dual Cv)
- 8DUAL CHECK VALVE WITH INTERMEDIATE VENT (Du CV)
- 9Pressure Type Vacuum Breaker (Pvb)
- 10Double Check Valve (Dcv)
- 11Double Check Detector Assembly (Dcda)
- 12Reduced Pressure Zone Device (Rpzd)
- 13Reduced Pressure Detector Assembly (Rpda)
- 14Spill-Resistant Pressure Vacuum Breaker (Spvb)
- 15Beverage Dispenser Dual Check Valve with Atmospheric Port (Bddc)
- 16Pipe Interrupter Device (Pid)
- 17Single Check Valve (Testable) (Scvt)
- 18Single Check Detector Assembly (Testable) (Scdat)
- 19Marking and Packaging
- 20Manufacturer™S Data
- AMeans for Demonstrating Compliance with This Standard
- BNormative Documents
- CTesting Apparatus, Test Sequence and Instrumentation Requirements
- DTorque Test on Screwed-in End Devices
- ETest for Ability to Withstand Continuous Pressure-Devices Intended for Heated Water Applications
- FPositive Pressure Test
- GReverse Pressure Test
- HAir Port Opening Area Test-Atmospheric Vacuum Breaker (Avb), Pressure Type Vacuum Breaker (Pvb), Spill...
- IWater Rise Test-Atmospheric Vacuum Breaker (Avb), Pressure Type Vacuum Breaker (Pvb) and Spill-Resistant...
- JEndurance Test-Atmospheric Vacuum Breaker (Avb)
- KRated Flow and Pressure Loss Test
- LVentilation Valve Leakage Test-Atmospheric Vacuum Breaker (Avb)
- MDetermination of Critical Level-Atmospheric Vacuum Breaker (Avb), Pressure-Type Vacuum Breaker (Pvb) and...
- NTest for Leakage from Air Ports-Hose Connection Vacuum Breaker (Hcvb) and Dual Check Valve with...
- OTest for Resistance to Bending-Hose Connection Vacuum Breaker (Hcvb)
- PTest for Resistance and Relief of Backpressure-Hose Connection Vacuum Breaker (Hcvb)
- QBackpressure Test-Hose Connection Vacuum Breaker (Hcvb)
- RTest for Back-Siphonage-Hose Connection Vacuum Breaker (Hcvb) and Dual Check Valve with Atmospheric Port (Dcap)
- STest for Rated Water Flow Capacity and Pressure Loss-Hose Connection Vacuum Breaker (Hcvb)
- TEndurance Test-Hose Connection Vacuum Breaker (Hcvb)
- UNon-Return Valve Closing Pressure Test
- VTest for Leakage from Air Ports-Dual Check Valve with Atmospheric Port (Dcap) and Beverage Dispenser Dual...
- WTest for Backflow Through Upstream Non-Return Valve-Dual Check Valve with Atmospheric Port (Dcap) and...
- XVentilation Valve Opening Pressure Test-Dual Check Valve with Atmospheric Port (Dcap) and Beverage...
- YTest for Back-Siphonage Under Backpressure-Dual Check Valve with Atmospheric Port (Dcap)
- ZTesting Installation for Tests of Appendices E, F, K, L, M, S and Aa
- AATest for Flow Rate at Low Supply Pressure-Dual Check Valve with Atmospheric Port (Dcap)
- BBEndurance Test-Dual Check Valve with Atmospheric Port (Dcap)
- CCENDURANCE TEST-DOUBLE CHECK VALVE (DCA), DUAL CHECK VALVE (Dual CV), DUAL CHECK VALVE WITH INTERMEDIATE...
- DDBACK-SIPHONAGE TEST-DUAL CHECK VALVE WITH INTERMEDIATE VENT (Du CV)
- EEVentilation Valve Opening Pressure Test-Pressure Type Vacuum Breaker (Pvb) and Spill-Resistant Pressure...
- FFEndurance Test-Pressure-Type Vacuum Breaker (Pvb) and Spill-Resistant Pressure Vacuum Breaker (Spvb)
- GGIntermediate Chamber Pressure Test-Reduced Pressure Zone Device (Rpzd) and Reduced Pressure Detector...
- HHDetermination of Supply Pressure at Which Pressure in the Intermediate Chamber Becomes Atmospheric-Reduced...
- IIDetermination of Intermediate Chamber Pressure Under Backpressure Conditions When the Supply Pressure Is...
- JJDetermination of Intermediate Chamber Pressure Under Backpressure Conditions When the Supply Pressure Is...
- KKDetermination of Pressure Differential at Which Relief Valve Commences to Open-Reduced Pressure Zone...
- LLTest for Effect of Supply Pressure Fluctuation on Discharge from Relief Valve-Reduced Pressure Zone Device...
- MMBack-Siphonage Test-Reduced Pressure Zone Device (Rpzd) and Reduced Pressure Detector Assembly (Rpda)
- NNBackpressure Test-Reduced Pressure Zone Device (Rpzd) and Reduced Pressure Detector Assembly (Rpda)
- OOEndurance Test-Reduced Pressure Zone Device (Rpzd) and Reduced Pressure Detector Assembly (Rpza)
- PPStiction Test-Resilient Seat Material
- QQAir Port Entry Sealing Test-Spill-Resistant Pressure Vacuum Breaker (Spvb)
- RRBack-Siphonage Test-Beverage Dispenser Dual Check Valve with Atmospheric Port (Bddc)
- SSEndurance Test-Beverage Dispenser Dual Check Valve with Atmospheric Port (Bddc)
- TTRequirements Specific to Plastics Materials for Device Bodies