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ASTM B940-05

Current Revision

Standard Practice for Testing Non-Chromate Coatings on Zinc and Cadmium Surfaces

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1.1 This practice covers a procedure for evaluating the protective value of chemical and electrochemical conversion coatings produced by non-chromate (chromate being defined as a compound that has chromium in the plus six oxidation state, and as such, chromium compounds in other oxidation states, such as plus three, shall not be excluded) treatments of zinc and cadmium surfaces.

1.2 The protective value of a non-chromate coating is usually determined by salt-spray test and by determining whether or not the coating possesses adequate abrasion resistance when applied for that purpose.

1.3 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.


SDO ASTM: ASTM International
Document Number B940
Publication Date Oct. 1, 2005
Language en - English
Page Count 2
Revision Level 05
Supercedes
Committee B08.07
Publish Date Document Id Type View
Oct. 1, 2005 B0940-05 Revision
May 1, 2020 B0940-05R20 Reaffirmation
Nov. 1, 2014 B0940-05R14 Reaffirmation
Sept. 1, 2009 B0940-05R09E01 Reaffirmation