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ASTM International - ASTM B735-06

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

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Organization: ASTM International
Publication Date: 1 December 2006
Status: inactive
Page Count: 4
ICS Code (Metallic coatings): 25.220.40
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.

Document History

October 1, 2016
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
5.1 Gold coatings are often specified for the contacts of separable electrical connectors and other devices. Electrodeposits are the form of gold that is most used on contacts, although it is also...
October 1, 2011
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
Gold coatings are often specified for the contacts of separable electrical connectors and other devices. Electrodeposits are the form of gold that is most used on contacts, although it is also...
ASTM B735-06
December 1, 2006
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
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...
November 1, 2005
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
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...
May 10, 2000
Standard Test Method for Porosity in Gold Coatings on Metal Substrates by Nitric Acid Vapor
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 contacts....
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