ASTM E1817-08(2022)
(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
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 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.
5.2 Where conventional IQIs conforming to Practice E747 or E1025 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 E747 and E1025, 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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.
General Information
Relations
Standards Content (Sample)
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: E1817 − 08 (Reapproved 2022)
Standard Practice for
Controlling Quality of Radiological Examination by Using
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.
1. Scope E1025 Practice for Design, Manufacture, and Material
Grouping Classification of Hole-Type Image Quality In-
1.1 This practice covers the radiological examination of
dicators (IQI) Used for Radiography
unique materials or processes, or both, for which convention-
E1316 Terminology for Nondestructive Examinations
ally designed image quality indicators (IQIs), such as those
E1441 Guide for Computed Tomography (CT)
described in Practices E747 and E1025, may be inadequate in
2.2 ASNT Standards:
controlling the quality and repeatability of the radiological
SNT-TC-1A Recommended Practice for Personnel Qualifi-
image.
cation in Nondestructive Testing
1.2 Where appropriate, representative image quality indica-
ANSI/ASNT CP-189 Standard for Qualification and Certifi-
tors (RQIs) may also represent criteria levels of the acceptance
cation of Nondestructive Testing Personnel
or rejection of images of discontinuities.
2.3 Aerospace Industries Association Document:
NAS 410 Certification and Qualification of Nondestructive
1.3 This practice is applicable to most radiological methods
of examination. Testing Personnel
1.4 This standard does not purport to address all of the
3. Terminology
safety concerns, if any, associated with its use. It is the
3.1 Definitions—For definitions of terms used in this
responsibility of the user of this standard to establish appro-
practice, refer to Terminology E1316.
priate safety, health, and environmental practices and deter-
3.2 Definitions of Terms Specific to This Standard:
mine the applicability of regulatory limitations prior to use.
3.2.1 representative quality indicator (RQI)—a real part, or
1.5 This international standard was developed in accor-
a fabrication of similar geometry in radiologically similar
dance with internationally recognized principles on standard-
material to a real part, that has features of known characteris-
ization established in the Decision on Principles for the
tics that represent those features of interest for which the parts
Development of International Standards, Guides and Recom-
to be purchased are being examined.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4. Summary of Practice
2. Referenced Documents 4.1 The information from an RQI image may be used to
control all of the parameters necessary for production exami-
2.1 ASTM Standards:
nationimages(whichlookessentiallyliketheRQIimages)and
E543 Specification forAgencies Performing Nondestructive
is particularly effective in the practice of radioscopic and
Testing
tomographic techniques. Refer to Guides E1000 and E1441,
E747 Practice for Design, Manufacture and Material Group-
respectively.
ing Classification of Wire Image Quality Indicators (IQI)
Used for Radiology 4.2 ThedesignermayalsousetheRQI,whenincompliance
with the requirements set out in this practice, to set accept or
E1000 Guide for Radioscopy
reject criteria, as applicable, to that part design.
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
5. Significance and Use
structive Testing and is the direct responsibility of Subcommittee E07.01 on
5.1 The use of RQIs is a significant departure from normal
Radiology (X and Gamma) Method.
Current edition approved Dec. 1, 2022. Published December 2022. Originally
practice in industrial radiology because it is not a standard
approved in 1996. Last previous edition approved in 2014 as E1817 – 08(2014).
DOI: 10.1520/E1817-08R22.
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.
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
E1817 − 08 (2022)
design and is dependent on the application, material, and 8.1.3 The choice of known nonconformances that the sys-
process and therefore cannot be a simple plaque or wire. The tem should have the capability of revealing in the images shall
use of an RQI provides documented evidence that radiologic bedeterminedbetweenthepurchaserandthesupplierandshall
images have the level of quality necessary to reveal those be specified in the applicable job order or contract.
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 areas of interest.
following conditions:
8.2.1 The geometry of the RQI shall be agreed upon by the
5.2 Where conventional IQIs conforming to Practice E747
or E1025 can be used effectively, those practices should be user and the cognizant engineering organization for the parts.
8.2.2 The RQIs shall be identified permanently and referred
followed.
to in the examination scanplan.
6. Basis of Application
8.2.3 It shall be a requirement to keep an RQI register, a
scanplan describing all of the parameters used to make the
6.1 The following items shall be agreed upon between the
images, and a precise technical description (including refer-
purchaser and the supplier and specified in the contract or job
order: ence images) of all of the imperfections or characteristics for
which the RQI is being used.
6.1.1 Nondestructive testing (NDT) personnel shall be
qualified in accordance with a nationally or internationally
8.3 RQI Fabrica
...
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