ASTM E215-16

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 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] 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 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, 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.

General Information

• Status: Historical
• Publication Date: 30-Nov-2016
• ICS: 77.040.20 - Non-destructive testing of metals
• Technical Committee: E07 - Nondestructive Testing
• Drafting Committee: E07.07 - Electromagnetic Method

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E215 − 16
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* 2. Referenced Documents
3
2
2.1 ASTM Standards:
1.1 This practice is for standardizing eddy current equip-
E543Specification forAgencies Performing Nondestructive
mentemployedintheexaminationofseamlessaluminum-alloy
Testing
tube. Artificial discontinuities consisting of flat-bottomed or
E1316Terminology for Nondestructive Examinations
throughholes,orboth,areemployedasthemeansofstandard-
2.2 Federal Standard:
izing the eddy current system. General requirements for eddy
Fed Std. No.245DTolerance for Aluminum Alloy and
current examination procedures are included.
4
Magnesium Alloy Wrought Products
1.2 Procedures for fabrication of reference standards are
2.3 Other Documents:
given in Appendixes X1.1 and X2.1.
SNT-TC-1A Recommended Practice for Personnel Qualifi-
5
cation and Certification in Nondestructive Testing
1.3 This practice is intended for the examination of tubular
ANSI/ASNT-CP-189ASNT Standard for Qualification and
products having nominal diameters up to 4 in. [101.6 mm] and
5
Certification of Nondestructive Testing Personnel
wall thicknesses up to the standard depth of penetration (SDP)
NAS-410NAS Certification and Qualification of Nonde-
of eddy currents for the particular alloy (conductivity) being
6
structive Personnel (Quality Assurance Committee)
examined and the examination frequency being used.
7
2.4 ISO Standards:
NOTE1—Thispracticemayalsobeusedforlargerdiametersorheavier ISO 9712Non-Destructive Testing—Qualification and Cer-
walls up to the effective depth of penetration (EDP) of eddy currents as
tification of NDT Personnel
longas adequate resolutionisobtainedandasspecifiedbytheusingparty
or parties.
3. Terminology
1.4 This practice does not establish acceptance criteria.
3.1 Definitions—For definitions of terms used in this
They must be established by the using party or parties.
practice, refer to Terminology E1316.
1.5 The values stated in inch-pound units are to be regarded
4. Significance and Use
asthestandard.Thevaluesgiveninparenthesesaremathemati-
4.1 The examination is performed by passing the tube
cal conversions to SI units that are provided for information
lengthwise through or near an eddy current sensor energized
only and are not considered standard.
with alternating current of one or more frequencies. The
1.6 This standard does not purport to address all of the
electrical impedance of the eddy current sensor is modified by
safety problems, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
priate safety and health practices and determine the applica-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
bility of regulatory limitations prior to use.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde- dodssp.daps.dla.mil.
5
structive Testing and is the direct responsibility of Subcommittee E07.07 on AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
Electromagnetic Method. 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
6
Current edition approved Dec. 1, 2016. Published January 2017. Originally Available fromAerospace IndustriesAssociation ofAmerica, Inc. (AIA), 1000
approved in 1963. Last previous edition approved in 2011 as E215-11. DOI: WilsonBlvd.,Suite1700,Arlington,VA22209-3928,http://www.aia-aerospace.org.
7
10.1520/E0215-16. Available from International Organization for Standardization (ISO), ISO
2
For ASME Boiler and Pressure Vessel Code applications see related Practice Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier,
SE-215 in the Code. Geneva, Switzerland, http://www.iso.org.
*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

---------------------- Page: 1 ----------------------
E215 − 16
NAS-410, however, it may be used with agreement between
...

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 − 11 E215 − 16
Standard Practice for
Standardizing Equipment forand Electromagnetic
1
TestingExamination 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 intended as a guide for standardizing eddy-current 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 eddy current system. General requirements for eddy-current 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] 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 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, 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
3
2.1 ASTM Standards:
E543 Specification for Agencies Performing Nondestructive Testing
E1316 Terminology for Nondestructive Examinations
2.2 Federal Standard:
4
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
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 July 1, 2011Dec. 1, 2016. Published July 2011January 2017. Originally approved in 1963. Last previous edition approved in 20042011 as
ε1
E215 - 98E215(2004) -11. . DOI: 10.1520/E0215-11.10.1520/E0215-16.
2
For ASME Boiler and Pressure Vessel Code applications see related Practice SE-215 in the Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http://dodssp.daps.dla.mil.
5
Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
6
Available from Aerospace Industries Association of America, Inc. (AIA), 1000 Wilson Blvd., Suite 1700, Arlington, VA 22209-3928, http://www.aia-aerospace.org.
7
Available from International Organization for Standardization (ISO), ISO Central Secretariat, BIBC II, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
Switzerland, http://www.iso.org.
*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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