ASTM E1817-08
(Practice)Standard Practice for Controlling Quality of Radiological Examination by Using Representative Quality Indicators (RQIs)
Standard Practice for Controlling Quality of Radiological Examination by Using Representative Quality Indicators (RQIs)
SIGNIFICANCE AND USE
The use of RQIs is a significant departure from normal practice in industrial radiology because it is not a standard design and is dependent on the application, material, and process and therefore cannot be a simple plaque or wire. The use of an RQI provides documented evidence that radiologic images have the level of quality necessary to reveal those nonconformances for which the parts are being examined by ensuring adequate spatial resolution and contrast sensitivity in the areas of interest.
Where conventional IQIs conforming to Practice E 747 or E 1025 can be used effectively, those practices should be followed.
SCOPE
1.1 This practice covers the radiological examination of unique materials or processes, or both, for which conventionally designed image quality indicators (IQIs), such as those described in Practices E 747 and E 1025, may be inadequate in controlling the quality and repeatability of the radiological image.
1.2 Where appropriate, representative image quality indicators (RQIs) may also represent criteria levels of the acceptance or rejection of images of discontinuities.
1.3 This practice is applicable to most radiological methods of examination.
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 and health practices and determine the applicability of regulatory limitations prior to use.
General Information
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1817 − 08
StandardPractice for
Controlling Quality of Radiological Examination by Using
1
Representative Quality Indicators (RQIs)
This standard is issued under the fixed designation E1817; 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.
3
1. Scope 2.2 ASNT Standards:
SNT-TC-1A Recommended Practice for Personnel Qualifi-
1.1 This practice covers the radiological examination of
cation in Nondestructive Testing
unique materials or processes, or both, for which convention-
ANSI/ASNT CP-189 Standard for Qualification and Certifi-
ally designed image quality indicators (IQIs), such as those
cation of Nondestructive Testing Personnel
described in Practices E747 and E1025, may be inadequate in
2.3 Aerospace Industries Association Document:
controlling the quality and repeatability of the radiological
NAS 410 Certification and Qualification of Nondestructive
image.
4
Testing Personnel
1.2 Where appropriate, representative image quality indica-
tors (RQIs) may also represent criteria levels of the acceptance
3. Terminology
or rejection of images of discontinuities.
3.1 Definitions—For definitions of terms used in this
1.3 This practice is applicable to most radiological methods
practice, refer to Terminology E1316.
of examination.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 representative quality indicator (RQI)—a real part, or
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the a fabrication of similar geometry in radiologically similar
material to a real part, that has features of known characteris-
responsibility of the user of this standard to establish appro-
tics that represent those features of interest for which the parts
priate safety and health practices and determine the applica-
to be purchased are being examined.
bility of regulatory limitations prior to use.
4. Summary of Practice
2. Referenced Documents
2
4.1 The information from an RQI image may be used to
2.1 ASTM Standards:
control all of the parameters necessary for production exami-
E543 Specification for Agencies Performing Nondestructive
nationimages(whichlookessentiallyliketheRQIimages)and
Testing
is particularly effective in the practice of radioscopic and
E747 Practice for Design, Manufacture and Material Group-
tomographic techniques. Refer to Guides E1000 and E1441,
ing Classification of Wire Image Quality Indicators (IQI)
respectively.
Used for Radiology
E1000 Guide for Radioscopy
4.2 The designer may also use the RQI, when in compliance
E1025 Practice for Design, Manufacture, and Material
with the requirements set out in this practice, to set accept or
Grouping Classification of Hole-Type Image Quality In-
reject criteria, as applicable, to that part design.
dicators (IQI) Used for Radiology
5. Significance and Use
E1316 Terminology for Nondestructive Examinations
E1441 Guide for Computed Tomography (CT) Imaging
5.1 The use of RQIs is a significant departure from normal
practice in industrial radiology because it is not a standard
design and is dependent on the application, material, and
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
process and therefore cannot be a simple plaque or wire. The
structive Testingand is the direct responsibility of Subcommittee E07.01 on
use of an RQI provides documented evidence that radiologic
Radiology (X and Gamma) Method.
images have the level of quality necessary to reveal those
Current edition approved July 1, 2008. Published July 2008. Originally approved
in 1996. Last previous edition approved in 2003 as E1817 - 03. DOI: 10.1520/
E1817-08.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAerospace IndustriesAssociation ofAmerica, Inc. (AIA), 1000
the ASTM website. WilsonBlvd.,Suite1700,Arlington,VA22209-3928,http://www.aia-aerospace.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1817 − 08
nonconformances for which the parts are being examined by 8.2 RQI Requirements—Radiologic image quality require-
ensuring adequate spatial resolution and contrast sensitivity in ments shall be determined by RQIs that conform to the
the ar
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:E1817–03 Designation: E 1817 – 08
Standard Practice for
Controlling Quality of Radiological Examination by Using
1
Representative Quality Indicators (RQIs)
This standard is issued under the fixed designation E 1817; 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
1.1 This practice covers the radiological examination of unique materials or processes, or both, for which conventionally
designed image quality indicators (IQIs), such as those described in Practices E 747 and E 1025, may be inadequate in controlling
the quality and repeatability of the radiological image.
1.2 Where appropriate, representative image quality indicators (RQIs) may also represent criteria levels of the acceptance or
rejection of images of discontinuities.
1.3 This practice is applicable to most radiological methods of examination.
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
E 543Practice for Evaluating Agencies that Perform Nondestructive Testing Specification for Agencies Performing Nonde-
structive Testing
E 747 Practice for Design, Manufacture, and Material Grouping Classification ofWire Image Quality Indicators (IQI) Used for
Radiology
E 1000 Guide for Radioscopy
E 1025 Practice for Design, Manufacture, and Material Grouping Classification of Hole-Type Image Quality Indicators (IQI)
Used for Radiology
E 1316 Terminology for Nondestructive Examinations
E 1441 Guide for Computed Tomography (CT) Imaging
3
2.2 ASNT Standards:
SNT-TC-1A Recommended Practice for Personnel Qualification in Nondestructive Testing
ANSI/ASNT CP-189 Standard for Qualification and Certification of Nondestructive Testing Personnel
2.3 Aerospace Industries Association Document:
4
NAS 410 Certification and Qualification of Nondestructive Testing Personnel
3. Terminology
3.1 Definitions—For definitions of terms used in this practice, refer to Terminology E 1316.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 representative quality indicator (RQI)— a real part, or a fabrication of similar geometry in radiologically similar material
to a real part, that has features of known characteristics that represent all those features of the featuresinterest for which the parts
to be purchased are being examined.
1
This practice is under the jurisdiction ofASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.01 on Radiology (X and
Gamma) Method.
Current edition approved March 10, 2003. Published May 2003. Originally approved in 1996. Last previous edition approved in 1996 as E1817-96.
Current edition approved July 1, 2008. Published July 2008. Originally approved in 1996. Last previous edition approved in 2003 as E 1817 - 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 03.03.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Society for Nondestructive Testing, 1711 Arlingate Plaza, P.O. Box 28518, Columbus, OH 43228-0518.
3
Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
4
Available from Aerospace Industries Association of America, Inc., 1250 Eye St., NW, Washington, DC 20005.
4
Available from Aerospace Industries Association of America, Inc. (AIA), 1000 Wilson Blvd., Suite 1700, Arlington, VA 22209-3928, http://www.aia-aerospace.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E1817–08
4. Summary of Practice
4.1 The information from an RQI image may be used to control all of the parameters necessary for production examination
images (which look essentially like the RQI images) and is particularly effective in the practice of radioscopic and tomographic
techniques. Refer to Guides E 1000 and E 1441, respectively.
4.2 The designer may also use
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.