ASTM-B940 Standard Practice for Testing Non-Chromate Coatings on Zinc and Cadmium Surfaces

ASTM-B940 - 2005 R20 EDITION - CURRENT
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Standard Practice for Testing Non-Chromate Coatings on Zinc and Cadmium Surfaces
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Scope

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.

Keywords

non-chromate coatings; ICS Number Code 25.220.99 (Other treatments and coatings)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

25.220.99 (Other treatments and coatings)

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Document Number

ASTM-B0940-05R20

Revision Level

2005 R20 EDITION

Status

Current

Modification Type

New

Publication Date

May 20, 2020

Document Type

Practice

Page Count

3 pages

Committee Number

B08.07