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AS/NZS 4020:2005
Testing of products for use in contact with drinking water


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General Product Information

Document Type Standard
Status Current
Publisher:    Standards Australia
Committee CH-034
Supersedes:
AS/NZS 4020:2002
DR 05089



Referenced in Legislation/Codes


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Abstract

Sets out requirements for the suitability of products for use in contact with drinking water. Appendices provide test methods for evaluating those parameters that have the potential to affect the quality of the water.

Scope

This Standard specifies requirements for the suitability of products for use in contact with drinking water, with regard to their effect on the quality of water. These products include all items such as pipes, fittings, components, and materials used in coating, protection, lining, jointing, sealing and lubrication applications in the water supply and plumbing industry. The Standard requires that products intended for use in contact with drinking water be tested by exposure to extractant waters. Where appropriate, a scaling factor is applied to such tests to compensate for differences between laboratory and field conditions.
NOTE:  This Standard may be used to test the suitability of products intended for use in contact with types of water other than drinking water.
This Standard does not take into account possible changes in materials, methods of manufacture or installation, nor is any consideration given to the frequency of testing of products. These should be covered by relevant product Standards. As a guide, re-verification testing of products to this Standard is generally desirable after a period of five years. This is consistent with the requirements of overseas bodies such as the Drinking Water Inspectorate in the United Kingdom.
Chemicals and media used directly for treating raw water to provide a suitable drinking water supply (e.g. lime, coagulants, activated carbon, ion-exchange resins) are not covered by this Standard.

History

Originated as AS 3855(Int)-1991.
Previous edition AS/NZS 4020:2002.
Fifth edition 2005.

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