ASTM B920-01(2006)e1
Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- Standard No.
- ASTM B920-01(2006)e1
- Release Date
- 2001
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM B920-01(2011)
- Latest
- ASTM B920-16(2022)
- Scope
1.1 This test practice covers equipment and methods for revealing the porosity of gold and palladium coatings, particularly electrodeposits and clad metals used on electrical contacts.
1.2 This test practice is suitable for coatings containing gold or 75 % by mass of palladium on substrates of copper, nickel, and their alloys, which are commonly used in electrical contacts.
1.3 A variety of full porosity testing methods is described in the literature., These porosity Test Methods are B 735, B 741, B 798, B 799, and B 809. An ASTM Guide to the selection of porosity tests for electrodeposits and related metallic coatings is available as Guide B 765.
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
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 hazards, see Section 6.
ASTM B920-01(2006)e1 Referenced Document
- ASTM B374 Standard Terminology Relating to Electroplating
- ASTM B542 Standard Terminology Relating to Electrical Contacts and Their Use
- 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 B798 Standard Test Method for Porosity in Gold or Palladium Coatings on Metal Substrates by Gel-Bulk Electrography
- ASTM B799 Standard Test Method for Porosity in Gold and Palladium Coatings by Sulfurous Acid/Sulfur-Dioxide Vapor
- ASTM B809 Standard Test Method for Porosity in Metallic Coatings by Humid Sulfur Vapor ("Flowers-of-Sulfur")*， 2024-04-19 Update
ASTM B920-01(2006)e1 history
- 2022 ASTM B920-16(2022) Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 2016 ASTM B920-16 Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 2001 ASTM B920-01(2011) Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 2001 ASTM B920-01(2006)e1 Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 2006 ASTM B920-01(2006) Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
- 2001 ASTM B920-01 Standard Practice for Porosity in Gold and Palladium Alloy Coatings on Metal Substrates by Vapors of Sodium Hypochlorite Solution
