ASTM E243-18
(Practice)Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
SIGNIFICANCE AND USE
5.1 Eddy current testing is a nondestructive method of locating discontinuities in a product. Signals can be produced by discontinuities located either on the external or internal surface of the tube or by discontinuities totally contained within the walls. Since the density of eddy currents decreases nearly exponentially as the distance from the external surface increases, the response to deep-seated defects decreases.
5.2 Some indications obtained by this method may not be relevant to product quality; for example, a reject signal may be caused by minute dents or tool chatter marks that are not detrimental to the end use of the product. Irrelevant indications can mask unacceptable discontinuities. Relevant indications are those which result from nonacceptable discontinuities. Any indication above the reject level that is believed to be irrelevant shall be regarded as unacceptable until it is demonstrated by re-examination or other means to be irrelevant (see 10.3.2).
5.3 Eddy current testing systems are generally not sensitive to discontinuities adjacent to the ends of the tube (end effect). On-line eddy current examining would not be subject to end effect.
5.4 Discontinuities such as scratches or seams that are continuous and uniform for the full length of the tube may not always be detected.
SCOPE
1.1 This practice2 covers the procedures that shall be followed in eddy current examination of copper and copper-alloy tubes for detecting discontinuities of a severity likely to cause failure of the tube. These procedures are applicable for tubes with outside diameters to 31/8 in. (79.4 mm), inclusive, and wall thicknesses from 0.017 in. (0.432 mm) to 0.120 in. (3.04 mm), inclusive, or as otherwise stated in ASTM product specifications; or by other users of this practice. These procedures may be used for tubes beyond the size range recommended, upon contractual agreement between the purchaser and the manufacturer.
1.2 The procedures described in this practice are based on methods making use of encircling annular examination coil systems.
1.3 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Note 1: This practice may be used as a guideline for the examination, by means of internal probe examination coil systems, of installations using tubular products where the outer surface of the tube is not accessible. For such applications, the technical differences associated with the use of internal probe coils should be recognized and accommodated. The effect of foreign materials on the tube surface and signals due to tube supports are typical of the factors that must be considered. See E690 for additional details regarding the in-situ examinations using internal probes.
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.
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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.
Designation: E243 − 18
Standard Practice for
Electromagnetic (Eddy Current) Examination of Copper and
1
Copper-Alloy Tubes
This standard is issued under the fixed designation E243; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
2
1.1 This practice covers the procedures that shall be
ization established in the Decision on Principles for the
followed in eddy current examination of copper and copper-
Development of International Standards, Guides and Recom-
alloy tubes for detecting discontinuities of a severity likely to
mendations issued by the World Trade Organization Technical
cause failure of the tube. These procedures are applicable for
Barriers to Trade (TBT) Committee.
1
tubes with outside diameters to 3 ⁄8 in. (79.4 mm), inclusive,
and wall thicknesses from 0.017 in. (0.432 mm) to 0.120 in.
2. Referenced Documents
(3.04 mm), inclusive, or as otherwise stated inASTM product
3
2.1 ASTM Standards:
specifications; or by other users of this practice. These proce-
B111/B111MSpecification for Copper and Copper-Alloy
dures may be used for tubes beyond the size range
Seamless Condenser Tubes and Ferrule Stock
recommended, upon contractual agreement between the pur-
B395/B395MSpecification for U-Bend Seamless Copper
chaser and the manufacturer.
and Copper Alloy Heat Exchanger and Condenser Tubes
1.2 The procedures described in this practice are based on
B543Specification for Welded Copper and Copper-Alloy
methods making use of encircling annular examination coil
Heat Exchanger Tube
systems.
E543Specification forAgencies Performing Nondestructive
Testing
1.3 Units—The values stated in inch-pound units are to be
E690Practice for In Situ Electromagnetic (Eddy Current)
regarded as the standard. The values given in parentheses are
Examination of Nonmagnetic Heat Exchanger Tubes
mathematical conversions to SI units that are provided for
E1316Terminology for Nondestructive Examinations
information only and are not considered standard.
2.2 Other Documents:
NOTE 1—This practice may be used as a guideline for the examination,
SNT-TC-1A Recommended Practice for Personnel Qualifi-
bymeansofinternalprobeexaminationcoilsystems,ofinstallationsusing
4
cation and Certification in Nondestructive Testing
tubular products where the outer surface of the tube is not accessible. For
such applications, the technical differences associated with the use of
ANSI/ASNTCP-189ASNT Standard for Qualification and
4
internal probe coils should be recognized and accommodated. The effect
Certification of Nondestructive Testing Personnel
of foreign materials on the tube surface and signals due to tube supports
NAS-410NAS Certification and Qualification of Nonde-
are typical of the factors that must be considered. See E690 for additional
5
structive Personnel (Quality Assurance Committee)
details regarding the in-situ examinations using internal probes.
6
2.3 International Standards:
1.4 This standard does not purport to address all of the
ISO 9712Non-Destructive Testing – Qualification and Cer-
safety concerns, if any, associated with its use. It is the
tification of NDT personnel
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
1 4
This practice is under the jurisdiction of ASTM Committee E07 on Nonde- AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
structive Testing and is the direct responsibility of Subcommittee E07.07 on 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
5
Electromagnetic Method. Available fromAerospace IndustriesAssociation ofAmerica, Inc. (AIA), 1000
Current edition approved June 1, 2018. Published June 2018. Originally WilsonBlvd.,Suite1700,Arlington,VA22209-3928,http://www.aia-aerospace.org.
approved in 1967. Last previous edition approved in 2013 as E243-13. DOI:
6
10.1520/E0243-18. Available from International Organization for Standardization
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E243 − 13 E243 − 18
Standard Practice for
Electromagnetic (Eddy Current) Examination of Copper and
1
Copper-Alloy Tubes
This standard is issued under the fixed designation E243; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
2
1.1 This practice covers the procedures that shall be followed in eddy current examination of copper and copper-alloy tubes
for detecting discontinuities of a severity likely to cause failure of the tube. These procedures are applicable for tubes with outside
1
diameters to 3 ⁄8 in. (79.4 mm), inclusive, and wall thicknesses from 0.017 in. (0.432 mm) to 0.120 in. (3.04 mm), inclusive, or
as otherwise stated in ASTM product specifications; or by other users of this practice. These procedures may be used for tubes
beyond the size range recommended, upon contractual agreement between the purchaser and the manufacturer.
1.2 The procedures described in this practice are based on methods making use of encircling annular examination coil systems.
1.3 Units—The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are
mathematical conversions to SI units that are provided for information only and are not considered standard.
NOTE 1—This practice may be used as a guideline for the examination, by means of internal probe examination coil systems, of installations using
tubular products where the outer surface of the tube is not accessible. For such applications, the technical differences associated with the use of internal
probe coils should be recognized and accommodated. The effect of foreign materials on the tube surface and signals due to tube supports are typical of
the factors that must be considered. See E690 for additional details regarding the in-situ examinations using internal probes.
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 safety, health, and healthenvironmental 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.
2. Referenced Documents
3
2.1 ASTM Standards:
B111/B111M Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
B395/B395M Specification for U-Bend Seamless Copper and Copper Alloy Heat Exchanger and Condenser Tubes
B543 Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube
E543 Specification for Agencies Performing Nondestructive Testing
E690 Practice for In Situ Electromagnetic (Eddy Current) Examination of Nonmagnetic Heat Exchanger Tubes
E1316 Terminology for Nondestructive Examinations
2.2 Other Documents:
4
SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
4
ANSI/ASNT CP-189 ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
5
NAS-410 NAS Certification and Qualification of Nondestructive Personnel (Quality Assurance Committee)
1
This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.07 on Electromagnetic
Method.
Current edition approved Dec. 1, 2013June 1, 2018. Published December 2013June 2018. Originally approved in 1967. Last previous edition approved in 20092013 as
E243 - 09.E243 - 13. DOI: 10.1520/E0243-13.10.1520/E0243-18.
2
For ASME Boiler and Pressure Vessel Code applications see related Practice SE-243 in the Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
5
Available from
...
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