ASTM-A90 › Standard Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
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Scope
1.1 This test method covers procedures for determining the weight [mass] of coating on iron or steel sheet, wire, and other articles in which the coating is zinc or a zinc alloy, such as zinc-5 % aluminum (including zinc-5 % aluminum-mischmetal and zinc-5 % aluminum-0.1 % magnesium) or 55 % aluminum-zinc. In the body of this test method, reference to zinc coating shall be interpreted to also include zinc alloy coating except where specifically stated otherwise.
1.2 The final results determined by this test method shall be expressed in inch-pound units or SI units, depending on the units used in the material specification to which the results are to be compared. Certain portions of the procedure involving determination of specimen weight [mass] have traditionally been performed in SI units, and corresponding inch-pound units are not included.
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. For specific hazards statements see 5.1.
Keywords
55 % aluminum-zinc alloy coating; coating weight [mass]; steel sheet; steel wire; zinc alloy coatings; zinc coating; zinc-5 % aluminum alloy coating; zinc-5 % aluminum-0.1 % magnesium alloy coating; zinc-5 % aluminum-mischmetal alloy coating; ICS Number Code 25.220.40 (Metallic coatings)
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Document Number
ASTM-A0090_A0090M-21
Revision Level
2021 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
May 17, 2021
Document Type
Test Method
Page Count
5 pages
Committee Number
A05.07