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ASTM E 1004 : 1999

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Practice for Determining Electrical Conductivity Using the Electromagnetic (Eddy-Current) Method
Superseded date

11-11-2014

Published date

31-12-2010

1.1 This test method describes a procedure for measuring the electrical conductivity of nonmagnetic metals using the electromagnetic (eddy current) method. The procedure has been written primarily for use with commercially available electrical conductivity instruments. General purpose eddy-current instruments may also be used for electrical conductivity measurements but will not be addressed in this test method.

1.2 This test method is applicable to metals that have a flat or slightly curved surface, and metals that may have a thin nonconductive coating.

1.3 Eddy-current measurements of electrical conductivity may be used in the sorting of metals with respect to variables such as: type of alloy, aging, cold deformation, heat treatment, effects associated with nonuniform heating or overheating, and effects of corrosion. The usefulness of tests of these properties is dependent on the amount of electrical conductivity change caused by a change in the specific variable.

1.4 Electrical conductivity, when measured by eddy-current instruments, usually is expressed as a percentage of the conductivity of the International Annealed Copper Standard (IACS). The conductivity of the Annealed Copper Standard (100% IACS) is defined to be 0.58 X 108 S/m at 20°C.

1.5 This standard does not purport to address the safety problems, 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.

Committee
E 07
DocumentType
Standard Practice
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy

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