ASTM-B798 › Historical Revision Information
Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
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Scope
1.1 This test method covers equipment and techniques for determining porosity in noble metal coatings, particularly electrodeposits and clad metals used on electrical contacts.
1.2 The test method is designed to show whether the porosity level is less or greater than some value which by experience is considered by the user to be acceptable for the intended application.
1.3 Other porosity testing methods are outlined in Guide B765. Detailed critical reviews of porosity testing are also available. Other porosity test methods are B735, B741, B799, and B809.
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. For specific hazard statements, see Sections 7 and 8.
1.5 The values stated in SI units are to be regarded as standard. The values in parentheses are for information only.
Keywords
electrography; gel; gel electrography; gold coatings; gold platings; palladium coatings; palladium platings; plating; porosity; porosity testing; ICS Number Code 25.220.40 (Metallic coatings)
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Document Number
ASTM-B798-90
Revision Level
1990 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Dec. 28, 1990
Document Type
Test Method
Page Count
5 pages
Committee Number
B02.11