AS/NZS 3718:2005 pdf – Water supply—Tap ware.
4.1 GENERAL.
All products and components shall be tested to the relevant performance requirements.
4.2 PLASTIC MATERIALS USED FOR PLASTIC-BODIED TAPS
When tested in accordance with Appendix C, a tap assembly shall exhibit characteristics for compatibility and resistance 10 variations in water chemistry and elevated temperatures.
4.3 HYDRAULIC STRENGTH TEST
When tested in accordance with Appendix D. a tap assembly shall show no signs of distortion, splitting, cracking or breakage or other failure.
4.4 SURFACE-MOUNTING STRENGTh TEST FOR TAPS
When tested in accordance with Appendix E, the surface-mounting components of the tap shall show no signs of cracking. deformation, stripping of threads or unsecured mounting. and shall comply with the requirements of the Clause 4.5.
NOTE: This Clause does not apply to recessed, wall.mountcd tap bodies.
4.5 WATERTIGHTNESS UNDER PRESSURE
When tested in accordance with Appendix F, a tap or hand spray with shut-off dev ice shall show no signs of cracks, leakage, or other failure.
4.6 NOMINAL FLOW RATE
4.6.1 General
4.6.1.1 High pressure
The flow rate of a tap or tap outlet shall be determined in accordance with Appendix G.
4.6.1.2 Low and unequal prL’.s.sure
[he flow rate of a tap or tap outlet shall be determined in accordance with Appendix R.
4.6.2 Outlets where compliance with ASINZS 6400 is mandatory
4.6.2.1 111gb pressure
Where labelling compliance with AS/NZS 6400 is mandatory, the nominal flow rate shall
be determined in accordance with Appendix G, and shall comply with the following:
(a) The maximum difference between the highest and lowest average flow rate shall not exceed 2.0 Ijmin.
(b) The highest average flow rate shall not exceed the upper limit of the flow range for the determined nominal flow rate in AS/NZS 6400 by more than 1.0 L/min.
(C) The lowest average flow rate shall be not less than the lower limit of the flow range for the determined nominal flow rate in AS/NZS 6400 by more than 1.0 Limin.
4.6.2.2 Low and unequal pressure
Where labelling compliance with AS/NZS 6400 is mandatory, the nominal flow rate shall be determined in accordance with Appendix R.
4.7 CONTAMINATION OF WATER
Materials in contact with drinking water shall comply with AS/NZS 4020.
Metallic components made from a single material may be pre-qualified by use of simulatedsamples for certification in accordance with Appendix P.
4.8 TORQUE OF FABRICATED JOINTS
When a fabricated tap assembly is tested in accordance with Appendix H, the fabricatedjoint shall show no signs of splitting,cracking, distortion, or thread damage. This test is atest of a fabricated joint and twisting of copper pipe tails is not a failure of the test
4.9 TORQUE OF HANDLE ATTACHMENT
When a handle assembly is tested in accordance with Appendix I, the handle and handleattachment shall show no signs of cracking,breaking, or stripping of thread.
4.10 TORQUE OF HEAD TO BODY
When tested in accordance with Appendix J， the head to body connection shall show nodistortion，stripping of mating thread or parts，damage to wrenching flats or internalcomponents.
4.11 TORQUE OF OPERATING MECHANISM
When tested in accordance with Appendix K, a tap-operating mechanism shall show nosigns of cracking, bending or damage.
AS/NZS 3718:2005 pdf – Water supply—Tap ware
