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ASTM B735

Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor

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Organization: ASTM
Publication Date: 1 November 2005
Status: inactive
Page Count: 4
ICS Code (Metallic coatings): 25.220.40
scope:

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

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.

Avariety of other porosity testing methods are described in Guide B 765 and in the literature.2, 3 Other porosity test methods are Test Methods B 741, B 798, B 799, and B 809.

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.

2 For example see: Nobel, F. J., Ostrow, B. D., and Thompson, D. W., "Porosity Testing of Gold Deposits," Plating, Vol 52, 1965, p. 1001.

3 S. J. Krumbein, Porosity Testing of Contact Platings, Proceedings, Connectors and Interconnection Technology Symposium, Oct. 1987, p. 47.

Document History

October 1, 2016
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, greater than 0.6 μm (25 μin.) in thickness, particularly electrodeposits and...
December 1, 2006
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, greater than 0.6 µm (25 µin.) in thickness, particularly electrodeposits and...
December 1, 2006
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, greater than 0.6 μm (25 μin.) in thickness, particularly electrodeposits and...
ASTM B735
November 1, 2005
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, greater than 0.6 µm (25 µin.) in thickness, particularly electrodeposits and...
April 15, 1995
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
1. Scope 1.1 This test method covers equipment and procedures for using nitric acid vapor for determining porosity in gold coatings, particularly electrodeposits and clad metals used on electrical...
January 15, 1992
STANDARD TEST METHOD FOR POROSITY IN GOLD COATINGS ON METAL SUBSTRATES BY NITRIC ACID VAPOR
A description is not available for this item.
October 30, 1989
STANDARD TEST METHOD FOR POROSITY IN GOLD COATINGS ON METAL SUBSTRATES BY NITRIC ACID VAPOR
A description is not available for this item.
July 27, 1984
STANDARD TEST METHODS FOR POROSITY IN GOLD COATINGS ON METAL SUBSTRATES BY GAS EXPOSURES (E1-1985)
A description is not available for this item.

References

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