HEADING size 54 Arial. AS/NZS 4020 . TEXT size no small than 28 Arial. Testing of products for use in contact with drinking water . SUB-HEADING size 44 Arial. Peter Christopoulos Australian Water Quality Centre (AWQC ). AWQC Australian Water Quality Centre.
Testing of products for use in contact with drinking water
SUB-HEADING size 44 Arial
Australian Water Quality Centre (AWQC)
Australian Water Quality
Composite – Non-metallic products or products with a combination of Metallic and Non-Metallic components (egTapware, Ball Valves).
Wholly Metallic – Metallic Pipes and Fittings (eg Copper and Stainless Steel Pipes).
Hot Water Systems – Water Heating devices such as Solar, Gas, Heat Pump combinations).
Example of Products Tested:
Hot Water Systems
Pipes and Pipe Fittings
Water Tank MaterialAS/NZS 4020 Covers the following:
Appendix K (HWS Testing)
Taste of Water Extract
Trained group of panellists assess water extracts for discernable tastes.
Appearance of Water Extract
Leaching of compounds that effect visual aspect of water. Colour and Turbidity.
Growth of Aquatic Microorganisms
Ability or inability to provide nutrient source for Microorganism growth.
Cytotoxic Activity of Water Extract
To ensure poisonous (toxic) compounds are not leached.
Mutagenic Activity of Water Extract
No compounds are released that can cause genetic mutations.
Extraction of Metals
Metallic elements do not exceed the maximum allowable concentration.
Challenge for manufacturers is to produce commercially viable products that do not leach harmful compounds into drinking water.Conclusion
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