ASTM B798-95(2005)
Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography

Standard No.

ASTM B798-95(2005)

Release Date

1995

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM B798-95(2009)

Latest

ASTM B798-95(2020)

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.

ASTM B798-95(2005) Referenced Document

• ASTM B374 Standard Terminology Relating to Electroplating*， 1996-04-19 Update
• ASTM B542 Standard Terminology Relating to Electrical Contacts and Their Use*， 2019-11-01 Update
• ASTM B735 Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
• ASTM B741 Standard Test Method for Porosity In Gold Coatings On Metal Substrates By Paper Electrography
• ASTM B765 Standard Guide for Selection of Porosity Tests for Electrodeposits and Related Metallic Coatings
• ASTM B799 Standard Test Method for Porosity in Gold and Palladium Coatings by Sulfurous Acid/Sulfur-Dioxide Vapor*， 2020-04-01 Update
• ASTM B809 Standard Test Method for Porosity in Metallic Coatings by Humid Sulfur Vapor ("Flowers-of-Sulfur")*， 2024-04-19 Update

ASTM B798-95(2005) history

• 2020 ASTM B798-95(2020) Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
• 1995 ASTM B798-95(2014) Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
• 1995 ASTM B798-95(2009) Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
• 1995 ASTM B798-95(2005) Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
• 2000 ASTM B798-95(2000) Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography