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ASTM B578-21

Current Revision

Standard Test Method for Microindentation Hardness of Electroplated Coatings

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1.1 This test method covers the determination of the hardness of metallic coatings upon various substrates. The measurements are made with the Knoop indenter under a test load of 0.245 N (25 gf) or 0.981 N (100 gf).

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


This test method specifies the determination of the microhardness of metallic coatings upon various substrates (electroplated coatings). Measurements shall be made with the Knoop indenter under specified test loads, and the hardness shall be reported as a Knoop hardness number (HK).


SDO ASTM: ASTM International
Document Number B578
Publication Date Oct. 1, 2021
Language en - English
Page Count 3
Revision Level 21
Supercedes
Committee B08.10
Publish Date Document Id Type View
Oct. 1, 2021 B0578-21 Revision
March 1, 2015 B0578-87R15 Reaffirmation
Sept. 1, 2009 B0578-87R09 Reaffirmation
Oct. 1, 2004 B0578-87R04 Reaffirmation
March 10, 1999 B0578-87R99 Reaffirmation