ASTM E2338-06
Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards

Standard No.

ASTM E2338-06

Release Date

2006

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM E2338-11

Latest

ASTM E2338-22

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 ( 0) or nonmagnetic ( = 0) 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 Practice D 7091 and the following test methods issued by ASTM: Test Methods B 244, E 376, E 1004, and G 12.

1.3 The values stated in SI units are to be regarded as standard. The inch-pound units are provided for information.

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

ASTM E2338-06 Referenced Document

• ASTM B244 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
• ASTM D7091 Standard Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals
• ASTM E1004 Standard Practice for Determining Electrical Conductivity Using the Electromagnetic (Eddy-Current) Method
• ASTM E1316 Standard Terminology for Nondestructive Examinations
• ASTM E376 Standard Practice for Measuring Coating Thickness by Magnetic-Field or Eddy-Current (Electromagnetic) Test Methods
• ASTM E543 Standard Practice for Agencies Performing Nondestructive Testing
• ASTM G12 Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel

ASTM E2338-06 history

• 2022 ASTM E2338-22 Standard Practice for Characterization of Coatings Using Conformable Eddy Current Sensors without Coating Reference Standards
• 2017 ASTM E2338-17 Standard Practice for Characterization of Coatings Using Conformable Eddy Current Sensors without Coating Reference Standards
• 2011 ASTM E2338-11 Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards
• 2006 ASTM E2338-06 Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards
• 2004 ASTM E2338-04 Standard Practice for Characterization of Coatings Using Conformable Eddy-Current Sensors without Coating Reference Standards