ASTM E215-22
(Practice)Standard Practice for Standardizing Equipment and Electromagnetic Examination of Seamless Aluminum-Alloy Tube
Standard Practice for Standardizing Equipment and Electromagnetic Examination of Seamless Aluminum-Alloy Tube
SIGNIFICANCE AND USE
4.1 The examination is performed by passing the tube lengthwise through or near an eddy current sensor energized with alternating current of one or more frequencies. The electrical impedance of the eddy current sensor is modified by the proximity of the tube. The extent of this modification is determined by the distance between the eddy current sensor and the tube, the dimensions, and electrical conductivity of the tube. The presence of metallurgical or mechanical discontinuities in the tube will alter the apparent impedance of the eddy current sensor. During passage of the tube, the changes in eddy current sensor characteristics caused by localized differences in the tube produce electrical signals which are amplified and modified to actuate either an audio or visual signaling device or a mechanical marker to indicate the position of discontinuities in the tube length. Signals can be produced by discontinuities located either on the external or internal surface of the tube or by discontinuities totally contained within the tube wall.
4.2 The depth of penetration of eddy currents in the tube wall is influenced by the conductivity (alloy) of the material being examined and the excitation frequency employed. As defined by the standard depth of penetration equation, the eddy current penetration depth is inversely related to conductivity and excitation frequency (Note 2). Beyond one standard depth of penetration (SDP), the capacity to detect discontinuities by eddy currents is reduced. Electromagnetic examination of seamless aluminum alloy tube is most effective when the wall thickness does not exceed the SDP or in heavier tube walls when discontinuities of interest are within one SDP. The limit for detecting metallurgical or mechanical discontinuities by way of conventional eddy current sensors is generally accepted to be approximately three times the SDP point and is referred to as the effective depth of penetration (EDP).
Note 2: The standard depth of penetratio...
SCOPE
1.1 This practice2 is for standardizing eddy current equipment employed in the examination of seamless aluminum-alloy tube. Artificial discontinuities consisting of flat-bottomed or through holes, or both, are employed as the means of standardizing the eddy current system. General requirements for eddy current examination procedures are included.
1.2 Procedures for fabrication of reference standards are given in X1.1 and X2.1.
1.3 This practice is intended for the examination of tubular products having nominal diameters up to 4 in. (101.6 mm) and wall thicknesses up to the standard depth of penetration (SDP) of eddy currents for the particular alloy (conductivity) being examined and the examination frequency being used.
Note 1: This practice may also be used for larger diameters or heavier walls up to the effective depth of penetration (EDP) of eddy currents as long as adequate resolution is obtained and as specified by the using party or parties.
1.4 This practice does not establish acceptance criteria. They must be established by the using party or parties.
1.5 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.
1.6 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.
1.7 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: E215 − 22
Standard Practice for
Standardizing Equipment and Electromagnetic Examination
1
of Seamless Aluminum-Alloy Tube
This standard is issued under the fixed designation E215; 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* ization established in the Decision on Principles for the
2 Development of International Standards, Guides and Recom-
1.1 This practice is for standardizing eddy current equip-
mendations issued by the World Trade Organization Technical
mentemployedintheexaminationofseamlessaluminum-alloy
Barriers to Trade (TBT) Committee.
tube. Artificial discontinuities consisting of flat-bottomed or
throughholes,orboth,areemployedasthemeansofstandard-
2. Referenced Documents
izing the eddy current system. General requirements for eddy
3
2.1 ASTM Standards:
current examination procedures are included.
E543Specification forAgencies Performing Nondestructive
1.2 Procedures for fabrication of reference standards are
Testing
given in X1.1 and X2.1.
E1316Terminology for Nondestructive Examinations
4
1.3 This practice is intended for the examination of tubular
2.2 Federal Standard:
products having nominal diameters up to 4 in. (101.6 mm) and
Fed Std. No.245DTolerance for Aluminum Alloy and
wall thicknesses up to the standard depth of penetration (SDP)
Magnesium Alloy Wrought Products
of eddy currents for the particular alloy (conductivity) being
3. Terminology
examined and the examination frequency being used.
3.1 Definitions—For definitions of terms used in this
NOTE1—Thispracticemayalsobeusedforlargerdiametersorheavier
walls up to the effective depth of penetration (EDP) of eddy currents as practice, refer to Terminology E1316.
longasadequateresolutionisobtainedandasspecifiedbytheusingparty
or parties.
4. Significance and Use
1.4 This practice does not establish acceptance criteria.
4.1 The examination is performed by passing the tube
They must be established by the using party or parties.
lengthwise through or near an eddy current sensor energized
with alternating current of one or more frequencies. The
1.5 Units—The values stated in inch-pound units are to be
electrical impedance of the eddy current sensor is modified by
regarded as the standard. The values given in parentheses are
the proximity of the tube. The extent of this modification is
mathematical conversions to SI units that are provided for
determined by the distance between the eddy current sensor
information only and are not considered standard.
and the tube, the dimensions, and electrical conductivity of the
1.6 This standard does not purport to address all of the
tube.The presence of metallurgical or mechanical discontinui-
safety concerns, if any, associated with its use. It is the
ties in the tube will alter the apparent impedance of the eddy
responsibility of the user of this standard to establish appro-
currentsensor.Duringpassageofthetube,thechangesineddy
priate safety, health, and environmental practices and deter-
currentsensorcharacteristicscausedbylocalizeddifferencesin
mine the applicability of regulatory limitations prior to use.
the tube produce electrical signals which are amplified and
1.7 This international standard was developed in accor-
modifiedtoactuateeitheranaudioorvisualsignalingdeviceor
dance with internationally recognized principles on standard-
a mechanical marker to indicate the position of discontinuities
in the tube length. Signals can be produced by discontinuities
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
3
structive Testing and is the direct responsibility of Subcommittee E07.07 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Electromagnetic Method. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
CurrenteditionapprovedJune1,2022.PublishedJuly2022.Originallyapproved Standards volume information, refer to the standard’s Document Summary page on
in 1963. Last previous edition approved in 2016 as E215–16. DOI: 10.1520/ the ASTM website.
4
E0215-22. Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
2
For ASME Boiler and Pressure Vessel Code applications, see related Practice Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
SE-215 in the Code. dodssp.daps.dla.mil.
*A Summary of Changes section appears at the end of this standard
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...
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: E215 − 16 E215 − 22
Standard Practice for
Standardizing Equipment and Electromagnetic Examination
1
of Seamless Aluminum-Alloy Tube
This standard is issued under the fixed designation E215; 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 is for standardizing eddy current equipment employed in the examination of seamless aluminum-alloy tube.
Artificial discontinuities consisting of flat-bottomed or through holes, or both, are employed as the means of standardizing the eddy
current system. General requirements for eddy current examination procedures are included.
1.2 Procedures for fabrication of reference standards are given in Appendixes X1.1 and X2.1.
1.3 This practice is intended for the examination of tubular products having nominal diameters up to 4 in. [101.6 mm](101.6 mm)
and wall thicknesses up to the standard depth of penetration (SDP) of eddy currents for the particular alloy (conductivity) being
examined and the examination frequency being used.
NOTE 1—This practice may also be used for larger diameters or heavier walls up to the effective depth of penetration (EDP) of eddy currents as long as
adequate resolution is obtained and as specified by the using party or parties.
1.4 This practice does not establish acceptance criteria. They must be established by the using party or parties.
1.5 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.
1.6 This standard does not purport to address all of the safety problems,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.
1.7 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.
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, 2016June 1, 2022. Published January 2017July 2022. Originally approved in 1963. Last previous edition approved in 20112016 as
E215E215 – 16. -11. DOI: 10.1520/E0215-16.10.1520/E0215-22.
2
For ASME Boiler and Pressure Vessel Code applications, see related Practice SE-215 in the Code.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E215 − 22
2. Referenced Documents
3
2.1 ASTM Standards:
E543 Specification for Agencies Performing Nondestructive Testing
E1316 Terminology for Nondestructive Examinations
4
2.2 Federal Standard:
Fed Std. No. 245D Tolerance for Aluminum Alloy and Magnesium Alloy Wrought Products
2.3 Other Documents:
5
SNT-TC-1A Recommended Practice for Personnel Qualification and Certification in Nondestructive Testing
5
ANSI/ASNT-CP-189 ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel
6
NAS-410 NAS Certification and Qualification of Nondestructive Personnel (Quality Assurance Committee)
7
2.4 ISO Standards:
ISO 9712 Non-Destructive Testing—Qualification and Certification of NDT Personnel
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, refer to Terminology E1316.
4. Significance and Use
4.1 The examination is performed by passing the tube lengthwise through or near an eddy current sensor energized with alternating
current of one or more frequencies. The electrical impedance of the eddy current sensor is modified by the proximity of the tube.
The extent of this modification is determined by the distance between the eddy current sensor and the tube, the dimensions, and
electrical conductivity of the
...
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