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ISO FDIS 8503-2

2011 Edition, November 24, 2011

Complete Document

PREPARATION OF STEEL SUBSTRATES BEFORE APPLICATION OF PAINTS AND RELATED PRODUCTS - SURFACE ROUGHNESS CHARACTERISTICS OF BLAST-CLEANED STEEL SUBSTRATES - PART 2: METHOD FOR THE GRADING OF SURFACE PROFILE OF ABRASIVE BLAST-CLEANED STEEL - COMPARATOR



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Superseded By: ISO 8503-2

Additional Comments:
NOW A PUBLISHED STD * SEE ISO 8503-2
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Description / Abstract:

Scope and field of application

This part of IS0 8503 describes a visual and tactile method for assessing the grade of the profile that has been produced by one of the abrasive blast-cleaning procedures described in IS0 8504-2.

The method uses IS0 surface profile comparators for assessing, on site, the roughness of surfaces before the application of paint or other protective treatments.

NOTE - Where appropriate, IS0 surface profile comparators may be used for assessing the roughness profile of other abrasive blast-cleaned substrates and, in addition, their use is not restricted solely to surfaces that are to be painted.

The method is applicable to steel surfaces that have been blast-cleaned by use of either shot abrasives or grit abrasives but is only applicable for grades Sa 2 l/z and Sa 3 of IS0 8501-I when the entire surface under test shows an overall blastcleaned appearance.

It is applicable to surfaces that have been cleaned with either metallic or non-metallic abrasives.
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