ASTM-B940 2009

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B940-05(2009)e1 Standard Practice for Testing Non-Chromate Coatings on Zinc and Cadmium Surfaces

Published By	Publication Date	Number of Pages
ASTM	2009	3

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Categories: 25.220.99 - Other treatments and coatings, ASTM

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Description

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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Significance and Use Conditioning
2	Procedure Keywords X1. NATURE OF COATINGS X1.1 X1.2 X1.3 X1.4 X2. PROTECTION BY NON-CHROMATE COATINGS X2.1 X2.2

Additional information

Standard Title	B940-05(2009)e1 Standard Practice for Testing Non-Chromate Coatings on Zinc and Cadmium Surfaces
Published Code	ASTM
Publication Date	2009
Pages Count	3
ICS Codes	25.220.99 - Other treatments and coatings

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ASTM-B940 2009

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