Significance and Use
The purpose of the alternating current field measurement method is to evaluate welds for surface breaking discontinuities such as fabrication and fatigue cracks. The examination results may then be used by qualified organizations to assess weld service life or other engineering characteristics (beyond the scope of this practice). This practice is not intended for the examination of welds for non-surface breaking discontinuities.
1. Scope
1.1 This practice describes procedures to be followed during alternating current field measurement examination of welds for baseline and service-induced surface breaking discontinuities.
1.2 This practice is intended for use on welds in any metallic material.
1.3 This practice does not establish weld acceptance criteria.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system might not be exact equivalents; therefore, each system shall be used independently of the other.
1.5 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.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E543 Specification for Agencies Performing Nondestructive Testing
E1316 Terminology for Nondestructive Examinations
ASNT Standard
ANSI/ASNT-CP-189 Standard for Qualification and Certification of Nondestructive Testing Personnel
Index Terms
alternating current field measurement; electromagnetic examination; ferromagnetic weld; non-conducting material; weld; Welded construction; Alternating-current measurement; Baseline property condition assessment (PCA) process; Discontinuities; Electromagnetic testing; Engineering applications; Fatigue cracking analysis; Ferromagnetic material/testing; Service-induced surface breaking discontinuities;
ICS Code
ICS Number Code 19.080 (Electrical and electronic testing); 25.160.01 (Welding, brazing and soldering in general)
DOI: 10.1520/E2261-07
ASTM International is a member of CrossRef.
Citing ASTM Standards
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