ASTM A903/A903M-99(2012)e1
(Specification)Standard Specification for Steel Castings, Surface Acceptance Standards, Magnetic Particle and Liquid Penetrant Inspection
Standard Specification for Steel Castings, Surface Acceptance Standards, Magnetic Particle and Liquid Penetrant Inspection
ABSTRACT
This specification covers steel castings, surface acceptance standards, magnetic particle and liquid penetrant inspection. Liquid penetrant inspection or magnetic particle inspection shall be used for nondestructive inspection. Personnel performing examination shall be qualified in accordance with an acceptable written procedure as agreed upon between the purchaser and manufacturer. All relevant indications shall be evaluated in terms of the acceptance criteria. Individual relevant linear and nonlinear indications exceeding the specified acceptance levels shall be considered unacceptable.
SCOPE
1.1 This specification covers acceptance criteria for the surface inspection of steel castings when nondestructively examined by magnetic particle or liquid penetrant inspection.
1.2 This specification is to be used wherever the inquiry, contract, order, or specification states that the acceptance standards for magnetic particle or liquid penetrant inspection shall be in accordance with Specification A903/A903M.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Combining values from the two systems may result in a nonconformance with this specification.
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Designation: A903/A903M −99 (Reapproved 2012)
Standard Specification for
Steel Castings, Surface Acceptance Standards, Magnetic
Particle and Liquid Penetrant Inspection
This standard is issued under the fixed designationA903/A903M; 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.
ε NOTE—Table 1 was editorially corrected in February 2016.
1. Scope 3.1.3 relevant indications—relevant indications are indica-
tions which result from mechanical discontinuities. Only indi-
1.1 This specification covers acceptance criteria for the
cations whose major dimension exceeds ⁄16 in. [1.6 mm] shall
surface inspection of steel castings when nondestructively
be considered relevant.
examined by magnetic particle or liquid penetrant inspection.
1.2 This specification is to be used wherever the inquiry,
4. Ordering Information
contract, order, or specification states that the acceptance
4.1 The inquiry and order should indicate the following
standards for magnetic particle or liquid penetrant inspection
information:
shall be in accordance with Specification A903/A903M.
4.1.1 Nondestructive Practice—Test Method E165 for liq-
1.3 The values stated in either inch-pound units or SI units
uid penetrant inspection or Guide E709 for magnetic particle
are to be regarded separately as standard.Within the text the SI
inspection. Unless a specific technique within a practice is
units are shown in brackets. The values stated in each system
specified, the choice shall be the option of the manufacturer.
are not exact equivalents; therefore each system must be used
4.1.2 Personnel Qualifications.
independently of the other. Combining values from the two
4.1.3 Extent of Inspection—The number of castings and the
systems may result in a nonconformance with this specifica-
extent of casting surfaces to be examined.
tion.
4.1.4 Acceptance Level—If more than one acceptance level
is specified for different locations, a nondestructive test draw-
2. Referenced Documents
ing identifying acceptance levels and locations should accom-
pany the inquiry and order.
2.1 ASTM Standards:
4.1.5 Supplementary Requirements, if any.
E165 Practice for Liquid Penetrant Examination for General
Industry
5. Personnel Qualifications
E709 Guide for Magnetic Particle Testing
5.1 Personnel performing examination shall be qualified in
3. Terminology
accordance with an acceptable written procedure as agreed
upon between the purchaser and manufacturer.
3.1 Definitions:
3.1.1 linear indications—an indication whose length is
6. Evaluation of Indications
equal to or greater than three times its width shall be classified
as a linear indication.
6.1 All relevant indications shall be evaluated in terms of
the acceptance criteria.
3.1.2 nonlinear indications—an indication whose length is
less than three times its width shall be classified as nonlinear.
6.2 Mechanical discontinuities are indicated by bleed-out of
the penetrant or retention of the magnetic particle examination
medium. However, false indications may be produced by
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
localized surface irregularities, metallurgical discontinuities, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
magnetic permeability variations. Any indication in excess of
A01.18 on Castings.
the acceptance criteria which is believed to be false may be
Current edition approved March 1, 2012. Published April 2012. Originally
reexamined. Surface conditioning may precede reexamination.
approved in 1991. Last previous edition approved in 2007 as A903/A903M-99
(2007). DOI: 10.1520/A0903_A0903M-99R12E01.
When agreed upon between the manufacturer and purchaser,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the liquid penetrant method may be used to verify the presence
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
of surface discontinuities which had been previously indicated
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. by the magnetic pa
...
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.
´1
Designation: A903/A903M − 99 (Reapproved 2012) A903/A903M − 99 (Reapproved 2012)
Standard Specification for
Steel Castings, Surface Acceptance Standards, Magnetic
Particle and Liquid Penetrant Inspection
This standard is issued under the fixed designation A903/A903M; 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.
ε NOTE—Table 1 was editorially corrected in February 2016.
1. Scope
1.1 This specification covers acceptance criteria for the surface inspection of steel castings when nondestructively examined by
magnetic particle or liquid penetrant inspection.
1.2 This specification is to be used wherever the inquiry, contract, order, or specification states that the acceptance standards
for magnetic particle or liquid penetrant inspection shall be in accordance with Specification A903A903/A903M/A 903M.
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text the SI units
are shown in brackets. The values stated in each system are not exact equivalents; therefore each system must be used
independently of the other. Combining values from the two systems may result in a nonconformance with this specification.
2. Referenced Documents
2.1 ASTM Standards:
E165 Practice for Liquid Penetrant Examination for General Industry
E709 Guide for Magnetic Particle Testing
3. Terminology
3.1 Definitions:
3.1.1 linear indications—an indication whose length is equal to or greater than three times its width shall be classified as a linear
indication.
3.1.2 nonlinear indications—an indication whose length is less than three times its width shall be classified as nonlinear.
3.1.3 relevant indications—relevant indications are indications which result from mechanical discontinuities. Only indications
whose major dimension exceeds ⁄16 in. [1.6 mm] shall be considered relevant.
4. Ordering Information
4.1 The inquiry and order should indicate the following information:
4.1.1 Nondestructive Practice—Test Method E165 for liquid penetrant inspection or Guide E709 for magnetic particle
inspection. Unless a specific technique within a practice is specified, the choice shall be the option of the manufacturer.
4.1.2 Personnel Qualifications.
4.1.3 Extent of Inspection—The number of castings and the extent of casting surfaces to be examined.
4.1.4 Acceptance Level—If more than one acceptance level is specified for different locations, a nondestructive test drawing
identifying acceptance levels and locations should accompany the inquiry and order.
4.1.5 Supplementary Requirements , Requirements, if any.
5. Personnel Qualifications
5.1 Personnel performing examination shall be qualified in accordance with an acceptable written procedure as agreed upon
between the purchaser and manufacturer.
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.18
on Castings.
Current edition approved March 1, 2012. Published April 2012. Originally approved in 1991. Last previous edition approved in 2007 as A903/A903M-99 (2007). DOI:
10.1520/A0903_A0903M-99R12.10.1520/A0903_A0903M-99R12E01.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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A903/A903M − 99 (2012)
6. Evaluation of Indications
6.1 All relevant indications shall be evaluated in terms of the acceptance criteria.
6.2 Mechanical discontinuities are indicated by bleed-out of the penetrant or retention of the magnetic particle examination
medium. However, false indications may be produced by localized surface irregularities, metallurgical discontinuities, or magnetic
permeability variations. Any indication in excess of the acceptance criteria which is believed to be false may be reexamined.
Surface conditioning may precede reexamination. When a
...
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