ASTM B 877 : 1996 : R2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Gross Defects and Mechanical Damage in Metallic Coatings by the Phosphomolybdic Acid (PMA) Method
Hardcopy , PDF
22-08-2018
English
01-12-2013
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 02.05, 2017 Defines 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.
| Committee |
B 08
|
| DocumentType |
Test Method
|
| Pages |
5
|
| ProductNote |
Reconfirmed 2013
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
1.1This 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.
1.2Recent reviews of porosity testing, which include those for gross defects, and testing methods can be found in the literature.2, 3 An ASTM guide to the selection of porosity and gross defect tests for electrodeposits and related metallic coatings is available as Guide B765. Other related porosity and gross defects test standards are Test Methods B735, B741, B798, B799, B809, and B866, Specifications B488, B679,and B689.
1.3The values stated in SI units are the preferred units. Those in parentheses are for information only.
1.4This 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.
| ASTM B 818 : 2003 : R2018 | Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy<brk/>(UNS R31233) Plate, Sheet and Strip |
| ASTM B 741 : 1995 : R2000 | Standard Test Method for Porosity In Gold Coatings On Metal Substrates By Paper Electrography (Withdrawn 2005) |
| ASTM B 735 : 2016 : REDLINE | Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor |
| ASTM B 542 : 2013 : REDLINE | Standard Terminology Relating to Electrical Contacts and Their Use |
| ASTM B 679 : 1998 | Standard Specification for Electrodeposited Coatings of Palladium for Engineering Use |
| ASTM B 765 : 2003 : R2018 | Standard Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings |
| ASTM B 866 : 1995 : R2018 | Standard Test Method for Gross Defects and Mechanical Damage in Metallic Coatings by Polysulfide Immersion |
| ASTM B 818 : 2003 : R2018 | Standard Specification for Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy<brk/>(UNS R31233) Plate, Sheet and Strip |
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