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. Applicable to steel surfaces that have been blast cleaned by use of either shot abrasives or grit abrasives but is only applicable when the entire surface under test shows an overall blast cleaned appearance. Applicable to surfaces that have been cleaned with either metallic or non-metallic abrasives. BS AMD 8661 RENUMBERS THIS STANDARD