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AS 2331.2.3:2001 (R2017)

AS 2331.2.3:2001 (R2017)

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Methods of test for metallic and related coatings – Tests for average coating mass per unit area or for thickness – Hydrogen evolution method for zinc coatings

Published By Publication Date Number of Pages
AS 2001-07-17 9
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Sets out the hydrogen evolution method for the determination of the average mass per unit area, or thickness, of zinc coatings on steel. The test requires the use of apparatus to measure the volume of hydrogen liberated resulting from the dissolution of the coating.

Scope

This Standard sets out the hydrogen evolution method for the determination of the average mass per unit area, or thickness, of zinc coatings on steel.
The method is suitable for the testing of items which have a surface area that can be calculated to within an accuracy of 1%. The method is normally accurate to within 5%.
NOTES:
1 A specialized version of this Method and apparatus for testing zinc coatings on wire is described in AS/NZS 4534.
2 The test procedures described in this Standard do not necessarily include all of the precautions required to satisfy health and safety aspects. Care should be taken to ensure that the procedures are carried out only by people who have received suitable training. Guidance in the handling and use of hazardous chemicals is given in AS/NZS 2243.1 and AS/NZS 2243.2.

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AS 2331.2.3:2001 (R2017)
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