ASTM G171 PDF
ASTM G171 PDF
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ASTM G171 PDF

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Standard Test Method for Scratch Hardness of Materials Using a Diamond Stylus

Published byPublication DateNumber of Pages
ASTM11/01/20177

ASTM G171 – Standard Test Method forScratch Hardness of Materials Using a Diamond Stylus

1.1 This test method covers laboratory procedures for determining the scratch hardness of the surfaces of solid materials. Within certain limitations, as described in this guide, this test method is applicable to metals, ceramics, polymers, and coated surfaces. The scratch hardness test, as described herein, is not intended to be used as a means to determine coating adhesion, nor is it intended for use with other than specific hemispherically-tipped, conical styli.

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