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ASTM B877-96

Current Revision

Standard Test Method for Gross Defects and Mechanical Damage in Metallic Coatings by the Phosphomolybdic Acid (PMA) Method

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1.1 This test standard covers equipment and methods for using phosphomolybdic acid (PMA) to detect gross defects and mechanical damage including wear through in metallic coatings of gold, silver, or palladium. These metals comprise the topmost metallic layers over substrates of nickel, copper, or copper alloys.

1.2 Recent reviews of porosity testing, which include those for gross defects, and testing methods can be found in the lierature. An ASTM guide to the selection of porosity and gross defect tests for electrodeposits and related metallic coatings is available as Guide B 765. Other related porosity and gross defects test standards are Test Methods B 735, B 741, B 798, B 799, B 809, and B 866.

1.3 The values stated in SI units are the preferred units. Those in parentheses are for information only.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number B877
Publication Date Oct. 10, 1996
Language en - English
Page Count 4
Revision Level 96
Supercedes
Committee B08.10
Publish Date Document Id Type View
Oct. 10, 1996 B0877-96 Revision
Aug. 1, 2018 B0877-96R18 Reaffirmation
Dec. 1, 2013 B0877-96R13 Reaffirmation
Aug. 1, 2008 B0877-96R08 Reaffirmation
Feb. 10, 2003 B0877-96R03 Reaffirmation