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ASTM B244-97
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 published on 10.4.1997
The information about the standard:
Designation standards: ASTM B244-97
Note: WITHDRAWN
Publication date standards: 10.4.1997
SKU: NS-5929
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM B244-97 :
Keywords:
coatings
Additional information
| Significance and Use | ||
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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. |
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| 1. Scope | ||
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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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| 2. Referenced Documents | ||
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