ASTM B 921 : 2008 : R2018
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys
Hardcopy , PDF
09-11-2023
English
23-10-2018
CONTAINED IN VOL. 02.05, 2017 Defines the requirements relating to rinsed and non-rinsed non-hexavalent chromium conversion coatings on aluminium and aluminium alloys intended to give protection against corrosion and as a base for other coatings.
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