Table of Contents

Abstract

Specifies abrasive blastcleaning methods for the preparation of steel surfaces before coating with paints and related products.
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 specifies abrasive blast cleaning methods for the preparation of steel surfaces before coating with paints and related products. It also contains information on the effectiveness of the individual methods and their fields of application.
NOTES:
Information on purchasing guidelines may be found in Appendix A.
Information on abrasive blasting of surfaces other than steel is discussed in Appendix D.
This Standard is applicable to new and corroded steel surfaces and also to steel surfaces that are uncoated or have been previously coated with paints and related products.
These methods are essentially intended for the surface preparation of hot-rolled steel but could also be used for cold-rolled steel of sufficient thickness to withstand the deformation caused by the impact of abrasive.
Items considered as a part of surface preparation before coating are edge grinding, removal of grease and oil, removal of weld spatter, removal of burrs and other sharp edges, grinding of welds, filling of pits, porosity of welds and other surface imperfections and removal of water-soluble contaminants that may cause premature failure of the coating system (see AS 1627.0 for more information). Such defects cannot be satisfactorily treated by abrasive blast cleaning.
WARNING: THE PROCEDURES DESCRIBED IN THIS STANDARD ARE INTENDED TO BE CARRIED OUT BY SUITABLY TRAINED AND SUPERVISED PERSONNEL. THE SUBSTANCES AND PROCEDURES USED IN THESE METHODS MAY BE INJURIOUS TO HEALTH IF ADEQUATE PRECAUTIONS ARE NOT TAKEN. ATTENTION IS DRAWN IN THE TEXT TO CERTAIN SPECIFIC HAZARDS. THIS STANDARD REFERS TO THE TECHNICAL SUITABILITY OF THE METHODS AND DOES NOT ABSOLVE THE USER FROM STATUTORY OBLIGATIONS RELATING TO HEALTH AND SAFETY.
NOTE: For guidance on working place hazards refer to Appendix C.

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 1627.4-2002 DR 05292