Water Treatment & Storage

Some of the earliest applications of aluminium sheeting in Australia relate to water storage facilities.

Water authorities around Australia generally select materials on the basis of a maintenance free design life of 60 years.

Our aluminium products meet this rigorous selection criteria. Permalite® products have been and continue to be an integral part of Australia’s potable water supply system.

Suitability for Contact with Drinking water

Permalite Claddings and Purlins have been tested to AS/NZS 4020:2018 – Testing of products for use in contact with drinking water by NATA accredited, AWQC, with the following results:

AS/NZS 4020:2018 – Testing of products for use in contact with drinking water
Clause	Criteria	Results
C	Taste	Passed at an exposure of 9840 mm² per litre
D	Appearance	Passed at an exposure of 30,000 mm² per litre
E	Growth or Aquatic Micro-Organisms	Passed at an exposure of 7500 mm² per litre
F	Cytotoxic Activity	Passed at an exposure of 30,000 mm² per litre
H	Metals	Passed at an exposure of 9840 mm² per litre
6.8	Organic Compounds	Passed at an exposure of 30,000 mm² per litre

Finishes tested include:

Aluminium

Temper

Material

Finishes

5251

H38

Roof and Wall Cladding and associated Flashings

Mill Finish

Pre-Painted by BlueScope

5052

H36

Structural Roof Purlins and Wall Girts and associated connection brackets

Mill Finish

Please refer to Appendix 10 of the Aluminium Roofing Solutions Guide for the full Final test report.

Additionally, Trocellen Crosslinked Polyethylene material used for Permalite Foam infills have been tested to AS/NZS 4020:2005 – Testing of products for use in contact with drinking water by NATA accredited, AWQC, with the following results:

AS/NZS 4020:2005 – Testing of products for use in contact with drinking water
Clause	Criteria	Results
C	Taste	Passed at an exposure of 15,000 mm² per litre
D	Appearance	Passed at an exposure of 15,000 mm² per litre
E	Growth or Aquatic Micro-Organisms	Passed at an exposure of 15,000 mm² per litre
F	Cytotoxic Activity	Passed at an exposure of 15,000 mm² per litre
H	Metals	Passed at an exposure of 15,000 mm² per litre
6.8	Organic Compounds	Passed at an exposure of 15,000 mm² per litre