ASTM A903/A903M-99(2007)

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Designation: A903/A903M – 99 (Reapproved 2007)
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.
1. Scope 3.1.2 nonlinear indications—an indication whose length is
less than three times its width shall be classified as nonlinear.
1.1 This specification covers acceptance criteria for the
3.1.3 relevant indications—relevant indications are indica-
surface inspection of steel castings when nondestructively
tions which result from mechanical discontinuities. Only indi-
examined by magnetic particle or liquid penetrant inspection.
cations whose major dimension exceeds ⁄16 in. [1.6 mm] shall
1.2 This specification is to be used wherever the inquiry,
be considered relevant.
contract, order, or specification states that the acceptance
standards for magnetic particle or liquid penetrant inspection
4. Ordering Information
shall be in accordance with Specification A903/A 903M.
4.1 The inquiry and order should indicate the following
1.3 The values stated in either inch-pound units or SI units
information:
are to be regarded separately as standard.Within the text the SI
4.1.1 Nondestructive Practice—Test Method E165 for liq-
units are shown in brackets. The values stated in each system
uid penetrant inspection or Guide E709 for magnetic particle
are not exact equivalents; therefore each system must be used
inspection. Unless a specific technique within a practice is
independently of the other. Combining values from the two
specified, the choice shall be the option of the manufacturer.
systems may result in a nonconformance with this specifica-
4.1.2 Personnel Qualifications.
tion.
4.1.3 Extent of Inspection—The number of castings and the
2. Referenced Documents extent of casting surfaces to be examined.
4.1.4 Acceptance Level—If more than one acceptance level
2.1 ASTM Standards:
is specified for different locations, a nondestructive test draw-
E165 PracticeforLiquidPenetrantExaminationforGeneral
ing identifying acceptance levels and locations should accom-
Industry
pany the inquiry and order.
E709 Guide for Magnetic Particle Testing
4.1.5 Supplementary Requirements, if any.
3. Terminology
5. Personnel Qualifications
3.1 Definitions:
5.1 Personnel performing examination shall be qualified in
3.1.1 linear indications—an indication whose length is
accordance with an acceptable written procedure as agreed
equal to or greater than three times its width shall be classified
upon between the purchaser and manufacturer.
as a linear indication.
6. Evaluation of Indications
This specification is under the jurisdiction of ASTM Committee A01 on Steel, 6.1 All relevant indications shall be evaluated in terms of
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
the acceptance criteria.
A01.18 on Castings.
6.2 Mechanical discontinuities are indicated by bleed-out of
Current edition approved Nov. 1, 2007. Published December 2007. Originally
the penetrant or retention of the magnetic particle examination
approved in 1991. Last previous edition approved in 2003 as A903/A903M-99
(2003). DOI: 10.1520/A0903_A0903M-99R07.
medium. However, false indications may be produced by
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
localized surface irregularities, metallurgical discontinuities, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
magnetic permeability variations. Any indication in excess of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the acceptance criteria which is believed to be false may be
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