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ASTM International - ASTM E2338-17

Standard Practice for Characterization of Coatings Using Conformable Eddy Current Sensors without Coating Reference Standards

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Organization: ASTM International
Publication Date: 1 November 2017
Status: active
Page Count: 8
ICS Code (Surface treatment and coating in general): 25.220.01
significance And Use:

4.1 Conformable Eddy Current Sensors-Conformable, eddy current sensors can be used on both flat and curved surfaces, including fillets, cylindrical surfaces, etc. When used with models for... View More

scope:

1.1 This practice covers the use of conformable eddy current sensors for nondestructive characterization of coatings without standardization on coated reference parts. It includes the following: (1) thickness measurement of a conductive coating on a conductive substrate, (2) detection and characterization of local regions of increased porosity of a conductive coating, and (3) measurement of thickness for nonconductive coatings on a conductive substrate or on a conductive coating. This practice includes only nonmagnetic coatings on either magnetic (μ ≠ μ0) or nonmagnetic (μ = μ0) substrates. This practice can also be used to measure the effective thickness of a process-affected zone (for example, shot peened layer for aluminum alloys, alpha case for titanium alloys). For specific types of coated parts, the user may need a more specific procedure tailored to a specific application.

1.2 Specific uses of conventional eddy current sensors are covered by Practices D7091 and E376 and the following test methods issued by ASTM: B244 and E1004. Guidance for the use of conformable eddy current sensor arrays is provided in E2884.

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard.

1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Document History

ASTM E2338-17
November 1, 2017
Standard Practice for Characterization of Coatings Using Conformable Eddy Current Sensors without Coating Reference Standards
4.1 Conformable Eddy Current Sensors—Conformable, eddy current sensors can be used on both flat and curved surfaces, including fillets, cylindrical surfaces, etc. When used with models for predicting...
February 15, 2011
Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards
Conformable Eddy-Current Sensors—Conformable, eddy-current sensors can be used on both flat and curved surfaces, including fillets, cylindrical surfaces, etc. When used with models for predicting the...
December 1, 2006
Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards
1.1 This practice covers the use of conformable eddy-current sensors for nondestructive characterization of coatings without standardization on coated reference parts. It includes the following: (1)...
January 1, 2004
Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards
1.1 This practice covers the use of conformable eddy-current sensors for nondestructive characterization of coatings without standardization on coated reference parts. It includes the following: (1)...
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