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ASTM-B921:2023 Edition

ASTM-B921:2023 Edition

$29.79

B921-08(2023) Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys

Published By Publication Date Number of Pages
ASTM 2023
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ASTM B921-08-Reapproved2023

Active Standard: Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys

ASTM B921

Scope

1.1 This specification covers the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminum and aluminum alloys intended to give protection against corrosion and as a base for other coatings.

1.2 Aluminum and aluminum alloys are conversion coated in order to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as a protective coating having a low electrical contact impedance.

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, health, and environmental practices and determine the applicability of regulatory requirements prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

conversion coating; non-hexavalent chromium conversion coating; non-rinsed; rinsed;

ICS Code

ICS Number Code 77.120.10 (Aluminium and aluminium alloys)

DOI: 10.1520/B0921-08R23

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