GB/T 9275-2008 "Paints and varnishes - Buchholz indentation test" specifies a method for determining the indentation hardness of paint and varnish coatings, applicable to coatings exhibiting plastic deformation behavior. Using a metal wheel indenter of specific dimensions, the coating is indented under a specified load, and the length of the indentation is measured to assess hardness. The test requires instruments such as the Buchholz indentation tester and a 20× observation microscope, providing a standardized approach for evaluating the deformation resistance of coatings.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87.040 |
| Release Date | 2008-06-04 00:00:00 | Implementation Date | 2008-12-01 00:00:00 |
