Standard Historical Last Updated: Dec 31, 2010 Track Document
ASTM B244-97(2002)

Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments

Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments B0244-97R02 ASTM|B0244-97R02|en-US Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments Standard new BOS Vol. 02.05 Committee B08
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Significance and Use

The thickness of a coating is often critical to its performance. This eddy-current method is nondestructive and is suitable for measuring the thickness of anodic coatings on aluminum, as well as the thickness of most nonconductive coatings on nonmagnetic basis metals.

This test method requires that the conductivity of the substrate be the same in the calibration standard and in the coated article to be measured.

Scope

1.1 This test method covers the use of eddy-current instruments for the nondestructive measurement of the thickness of a nonconductive coating on a nonmagnetic basis metal.

1.2 This test method is particularly useful for measuring the thickness of an anodic coating on aluminum alloys. Chemical conversion coatings are too thin to be measured by this method.

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Details
Book of Standards Volume: 02.05
Developed by Subcommittee: B08.10
Pages: 3
DOI: 10.1520/B0244-97R02
ICS Code: 17.040.20