AS 4032.4:2014 pdf – Water supply- -Valves for the control of heated water supply temperatures Part 4: Thermostatically controlled taps for the control of heated water supply temperatures.
(d) Temperature stability of mixed water (see Clause 4.6).
(e) Endurance of control system and operating mechanism (see Clause 4.8).
(fl Watertightness at operating temperature (see Clause 4.7).
(g) Repeat thermal shut-off (see Clause 4.4).
(h) Repeat mixed water temperature overshoot on starting from ambient (see Clause 4.5).
(i) Repeat temperature stability of mixed water (see Clause 4.6).
4.10 PLASTICS MATERIALS USED FOR PLASTICS-BODIED TAPS
When tested in accordance with Appendix H, a plastics-bodied tap assembly shall exhibit characteristics for compatibility and resistance to variations in water chemistry and elevated tern p era lures.
4.11 SURFACE-MOUNTING STRENGTH TEST FOR TAPS
When tested in accordance with Appendix I, 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 4.3.
NOTE: This Clause does not apply to recessed, wall-mounted thermostatic mixing taps.
4.12 NOMINAL FLOW RATE
4.12.1 High pressure
The flow rate of a tap or tap outlet shall be determined in accordance with Appendix J.
4.12.2 Low and unequal pressure
The flow rate of a tap or tap outlet shall be determined in accordance with Appendix K.
4.13 TORQUE OF FABRICATED ASSEMBLIES
When a fabricated tap assembly is tested in accordance with Appendix L, the fabricated joint shall show no signs of splitting, cracking, distortion or thread damage. This test is a test of a fabricated joint and twisting of copper pipe tails is not a failure of the test.
4.14 TORQUE OF HANDLE AND HANDLE ATTACHMENT
When a handle assembly is tested in accordance with Appendix M, the handle and handle attachment shall show no signs of cracking, breaking or stripping of thread.
4.15 TORQUE OF OPERATING MECHANISM
When tested in accordance with Appendix N, a tap-operating mechanism shall show no signs of cracking, bending or damage.
4.16 RESISTANCE OF HANDLE TO REMOVAL
The handles of wall-mounted bath or shower thermostatic mixing taps shall not fracture or pull off under an axial static load of 650 +0, —50 N.
This Appendix sets out the means by which compliance with this Standard has to be demonstrated by a manufacturer for product certification.
Products covered by this Standard are required to be certified under the National Certification Scheme.
A2 PRODUCT CERTIFICATION
The purpose of product certification is to provide independent assurance of the claim by the manufacturer that products comply with the stated Standard.
The certification scheme shall meet the criteria described in HB 1 8.28 in that, as well as full type testing from independently sampled production and subsequent verification of conformance, it requires the manufacturer to maintain effective quality planning to control production.
The certification scheme serves to indicate that the products consistently conform to the requirements of the Standard.
Product certification shall be conducted by an accredited certification body.
The frequency of the sampling and testing schedule, as detailed in Tables Al and A2, shall be used by the certifying body for product compliance auditing. However, where the manufacturer can demonstrate adequate process control to the certifying body, the frequency of sampling and testing nominated in the manufacturer’s quality plan and. documented procedures shall take precedence for the purpose of product certification.
AS 4032.4:2014 pdf – Water supply- -Valves for the control of heated water supply temperatures Part 4: Thermostatically controlled taps for the control of heated water supply temperatures
