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D7127 D7127-05 Standard Test Method for Measurement of Surface Roughness of Abrasive Blast Cleaned Metal Surfaces Using a Portable Stylus Instrument

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Revision Date: June 03, 2013
Updated On: June 11, 2013
Editorial Change:
 
5.1 This method may be useful in assuring conformance of a prepared surface to profile requirements specified by the manufacturer of a protective coating.

5.2 This method includes determination of the peak density (number of profile peaks in a specified distance). Some workers in the field believe that optimizing peak height and peak density can improve coating adhesion.

5.3 This method allows specifiers to objectively define surface texture after abrasive blast cleaning rather than using subjective terms such as “angular pattern” or “dense and uniform pattern.”

5.4 Because implicit and explicit definitions of “roughness” may differ substantially, numerical characterizations of profile cannot be compared directly across different methods.

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