Table of Contents

Abstract

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.
RECONFIRMATION NOTICE
Technical Committee MT-009 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.
Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.
Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 20 March 2017.
The following are represented on Technical Committee MT-009:
Australasian Institute of Surface Finishing
Australian Chamber of Commerce and Industry
Australian Industry Group
Australian Steel Institute
Bureau of Steel Manufacturers of Australia
Galvanizers Association of Australia
Galvanizing Association of New Zealand
New Zealand Metal Roofing Manufacturers

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.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Standards Australia
ProductNote	Reconfirmed 07/04/2017. This standard has been reconfirmed in Australia in 2017 and remains current in New Zealand. Reconfirmation Notice 07/04/2017
Pages
ISBN
Committee	MT-009
Supersedes	AS 2331.2.3-1980 DR 99372 DR 99379