ASTM E2698-18

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Designation: E2698 − 10 E2698 − 18
Standard Practice for
RadiologicalRadiographic Examination Using Digital
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Detector Arrays
This standard is issued under the fixed designation E2698; 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 establishes the minimum requirements for radiologicalradiographic examination forof metallic and
nonmetallic materialmaterials using a digital detector array (DDA) system.arrays (DDAs).
1.2 The stated requirements of this specification are based on the use of an X-ray generating source. Additionally, some of the
tests and requirements may not be applicable to X-ray energy levels >450kV.
1.3 The requirements in this practice are intended to control the quality of radiologic images radiographic examinations obtained
using DDAs and are not intended to establish acceptance criteria for parts or materials.
1.4 This practice covers the radiologicradiographic examination with DDAs including DDAs described in Practice
E2597E2597/E2597M such as a device that contains a photoconductor attached to a Thin Film Transistor (TFT) read out structure,
a device that has a phosphor coupled directly to an amorphous silicon read-out structure, and devices where a phosphor is coupled
to a CMOS (Complementary(complementary metal–oxide–semiconductor) array, a Linear Detector Array (LDA) or a CCD (charge
coupled device) crystalline silicon read-out structure.
1.5 The requirements of this practice and Practice E2737 shall be used together. The requirements of Practice E2737 will
provide the baseline evaluation and long term stability test procedures for the DDA system. The user of the DDA system shall
establish a written procedure that addresses the specific requirements and tests to be used in their application and shall be approved
by the Cognizant Radiographic Level 3 before examination of production hardware. This practice also requires the user to perform
a system qualification suitable for its intended purpose and to issue a system qualification report (see 9.1).
1.6 The DDA shall be selected for an NDT application based on knowledge of the technology described in Guide E2736, and
of the selected DDA properties provided by the manufacturer in accordance with Practice E2597E2597/E2597M.
1.5 The requirements of this practice and Practice E2737 shall be used together and both be approved by the CEO Level 3 in
Radiography before inspection of production hardware. The requirements of Practice E2737 will provide the baseline evaluation
and long term stability test procedures for the DDA system.
1.6 The requirements in this practice shall be used when placing a DDA into NDT service and, before being placed into service,
an established baseline of system qualification shall be performed in accordance with Practice E2737.
1.7 Techniques and applications employed with DDAs are diverse. This practice is not intended to be limiting or restrictive.
Refer to Guides E94E94/E94M, E1000, and E2736, Terminology E1316, PracticePractices E747 and E1025, Fed. Std. Nos. 21CFR
1020.40 and 29 CFR 1910.96 and Federal Standards 21-CFR-1020.40 and 29-CFR-1910.96 for a list of documents that provide
additional information and guidance.
1.8 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.
2. Referenced Documents
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2.1 ASTM Standards:
E94E94/E94M Guide for Radiographic Examination Using Industrial Radiographic Film
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This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.01 on Radiology (X and
Gamma) Method.
Current edition approved April 15, 2010Feb. 1, 2018. Published July 2010April 2018. Originally approved in 2010. Last previous edition approved in 2010 as E2698 – 10.
DOI: 10.1520/E2698-18.
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