ASTM-B457 Historical Revision Information
Standard Test Method for Measurement of Impedance of Anodic Coatings on Aluminum

ASTM-B457 - 1967 R72 EDITION - SUPERSEDED
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Standard Test Method for Measurement of Impedance of Anodic Coatings on Aluminum (Withdrawn 2023)
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Scope

1.1 This method describes the conditions and equipment for measuring the impedance of anodic coatings on aluminum. Such measurements have been used to evaluate the quality of seal of an anodic coating. The method does not prescribe the procedure for producing the anodic coating, nor the postanodizing treatment usually described as "sealing."

1.2 This method is applicable to the rapid, nondestructive testing of anodic coatings. The interpretation of results and correlation of data with service experience and other tests are not within the scope of this method.

Keywords

Aluminum-coatings; Aluminum alloys-anodic coatings; Coatings-anodic (on aluminum/aluminum alloys); Impedance; impedance-anodic coatings on aluminum, method

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:

25.220.20 (Surface treatment Including anodization, conversion coating, thermal spraying, etc.)

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Document Number

ASTM-B457-67(1972)

Revision Level

1967 R72 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

Jan. 1, 1967

Document Type

Test Method

Page Count

4 pages

Committee Number

B08.07