Drinking Water Approved

IS YOUR PUMP DRINKING WATER APPROVED?

Drinking Water Approval
Pumps that are AS/NZS4020 Drinking Water Approved offer peace-of-mind.

This approval ensures that the pump will not contribute any toxic materials or metals to the liquid being pumped, won’t support the growth of micro-organisms and won’t change the taste or appearance of your water.

Don’t risk you or your family’s health.

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Testing of Products for Use in Contact with Drinking Water

This Standard is designed to test any product that comes in contact with drinking water.

The Standard

The Standard requires that products do not affect the taste or appearance of water; do not support the growth of microorganisms; and do not release cytotoxic or mutagenic compounds or metals.

The tests required are specific to the type of product submitted.

Taste Of Water Extract:

A trained panel tastes water extracts to determine whether products release any compounds that impart discernible taste.

Appearance Of Water Extract:

Water that has been in contact with a product is examined for any increase in colour or turbidity.

Growth Of Aquatic Micro-organisms:

A test that takes 8 weeks, products are examined for the ability to support bacterial growth by monitoring dissolved oxygen levels.

Mutagenic Activity Of Water Extract:

An AMES test is used to determine whether products release mutagenic compounds. Water extracts are mixed with specific bacteria. Any measured change in genetic nature of the bacteria is regarded as evidence of mutagenic activity.

(A Mutagenic agent can induce or increase the frequency of mutation in an organism.)

 

Cytotoxic Activity Of Water Extract:

Water extracts are tested for cytotoxicity using mammalian cell lines maintained in laboratory culture. Any adverse effect on the health of the cells is recorded as a cytotoxic effect.

(Cytotoxicity is the quality of being toxic to cells)

 

Extraction Of Metals:

Water extracts are examined for the release of Arsenic, Antimony, Barium, Cadmium, Chromium,Copper, Lead, Mercury, Molybdenum, Nickel, Selenium and Silver.

The limits are in line with Australian Drinking Water Guidelines (ADWG).

The extraction procedure is either by end-of-line test or in-line test.

 

High Temperature Tests:

Products in contact with hot water are tested at higher temperatures. This applies to hot water systems, boiling water dispensers (including their outlet taps, fittings and tubes).

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