ASTM B735-06
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor

Standard No.
ASTM B735-06
Release Date
2006
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM B735-06(2011)
Latest
ASTM B735-16(2022)
Scope

1.1 This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, greater than 0.6 m (25 in.) in thickness, particularly electrodeposits and clad metals used on electrical contacts.

1.2 This test method is designed to show whether the porosity level is less or greater than some value that, by experience, is considered by the user to be acceptable for the intended application.

1.3 A variety of other porosity testing methods are described in Guide B 765 and in the literature., Other porosity test methods are Test Methods B 741, B 798, B 799, and B 809.

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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. Specific precautions are given in Section 8 and 9.4.

ASTM B735-06 Referenced Document

  • ASTM B374 Standard Terminology Relating to Electroplating
  • ASTM B542 Standard Terminology Relating to Electrical Contacts and Their Use
  • 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 B735-06 history

  • 2022 ASTM B735-16(2022) Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
  • 2016 ASTM B735-16 Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
  • 2006 ASTM B735-06(2011) Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
  • 2006 ASTM B735-06 Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
  • 2005 ASTM B735-05 Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
  • 1995 ASTM B735-95(2000) Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor



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