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ASTM E2738-13

(Practice)

Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods

Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods

SIGNIFICANCE AND USE
5.1 Personnel that are responsible for the creation, transfer, and storage of computed radiography NDE data will use this practice. This practice will define a set of information modules that along with the Practice E2339 and the DICOM standard will provide a standard means to organize CR inspection data. The CR inspection data may be displayed and analyzed on any device that conforms to the standard. Personnel wishing to view any CR inspection data stored in accordance with Practice E2339 may use this practice to help them decode and display the data contained in the DICONDE compliant inspection record.
SCOPE
1.1 This practice facilitates the interoperability of computed radiography (CR) imaging and data acquisition equipment by specifying image data transfer and archival storage methods in commonly accepted terms. This practice is intended to be used in conjunction with Practice E2339 on Digital Imaging and Communication in Nondestructive Evaluation (DICONDE). Practice E2339 defines an industrial adaptation of the NEMA Standards Publication titled Digital Imaging and Communications in Medicine (DICOM, see http://medical.nema.org), an international standard for image data acquisition, review, storage and archival storage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display and analysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a data dictionary and a set of information modules that are applicable to all NDE modalities. This practice supplements Practice E2339 by providing information object definitions, information modules and a data dictionary that are specific to computed radiography test methods.  
1.2 This practice has been developed to overcome the issues that arise when analyzing or archiving data from CR test equipment using proprietary data transfer and storage methods. As digital technologies evolve, data must remain decipherable through the use of open, industry-wide methods for data transfer and archival storage. This practice defines a method where all standard CR technique parameters and test results are communicated and stored in a standard manner regardless of changes in digital technology.  
1.3 This practice does not specify:  
1.3.1 A testing or validation procedure to assess an implementation's conformance to the standard.  
1.3.2 The implementation details of any features of the standard on a device claiming conformance.  
1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices each claiming DICONDE conformance.  
1.4 Although this practice contains no values that require units, it does describe methods to store and communicate data that do require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other units of measurement are included in this practice.  
1.5 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

Status
Historical
Publication Date
14-Dec-2013
ICS
35.240.80 - IT applications in health care technology
Technical Committee
E07 - Nondestructive Testing
Drafting Committee
E07.11 - Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
Current Stage
Ref Project

Relations

Replaces
ASTM E2738-11 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
Effective Date
15-Dec-2013
Replaced By
ASTM E2738-13e1 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
Effective Date
15-Dec-2013
Referred By
ASTM E3169-18 - Standard Guide for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
Effective Date
15-Dec-2013
Referred By
ASTM E3147-18 - Standard Practice for Evaluating DICONDE Interoperability of Nondestructive Testing and Inspection Systems
Effective Date
15-Dec-2013
Referred By
ASTM E2339-21 - Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
Effective Date
15-Dec-2013
Referred By
ASTM E2033-17 - Standard Practice for Radiographic Examination Using Computed Radiography (Photostimulable Luminescence Method)
Effective Date
15-Dec-2013
Referred By
ASTM E2699-23 - Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE) for Digital X-ray (DX) Test Methods
Effective Date
15-Dec-2013

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ASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test MethodsASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
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ASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
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REDLINE ASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test MethodsREDLINE ASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
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REDLINE ASTM E2738-13 - Standard Practice for Digital Imaging and Communication Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods
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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:E2738 −13
StandardPractice for
Digital Imaging and Communication Nondestructive
Evaluation (DICONDE) for Computed Radiography (CR) Test
1
Methods
This standard is issued under the fixed designation E2738; 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* 1.3.2 The implementation details of any features of the
standard on a device claiming conformance.
1.1 This practice facilitates the interoperability of computed
1.3.3 The overall set of features and functions to be ex-
radiography (CR) imaging and data acquisition equipment by
pected from a system implemented by integrating a group of
specifying image data transfer and archival storage methods in
devices each claiming DICONDE conformance.
commonly accepted terms. This practice is intended to be used
1.4 Although this practice contains no values that require
in conjunction with Practice E2339 on Digital Imaging and
Communication in Nondestructive Evaluation (DICONDE). units, it does describe methods to store and communicate data
that do require units to be properly interpreted. The SI units
Practice E2339 defines an industrial adaptation of the NEMA
Standards Publication titled Digital Imaging and Communica- required by this practice are to be regarded as standard. No
other units of measurement are included in this practice.
tions in Medicine (DICOM, see http://medical.nema.org), an
international standard for image data acquisition, review,
1.5 This standard does not purport to address all of the
storage and archival storage. The goal of Practice E2339,
safety concerns, if any, associated with its use. It is the
commonly referred to as DICONDE, is to provide a standard
responsibility of the user of this standard to establish appro-
that facilitates the display and analysis of NDE results on any
priate safety and health practices and determine the applica-
system conforming to the DICONDE standard. Toward that
bility of regulatory limitations prior to use.
end, Practice E2339 provides a data dictionary and a set of
2. Referenced Documents
information modules that are applicable to all NDE modalities.
2
This practice supplements Practice E2339 by providing infor- 2.1 ASTM Standards:
mation object definitions, information modules and a data
E1316 Terminology for Nondestructive Examinations
dictionary that are specific to computed radiography test
E2339 Practice for Digital Imaging and Communication in
methods.
Nondestructive Evaluation (DICONDE)
2.2 Other Documentation:
1.2 This practice has been developed to overcome the issues
National Electrical Manufacturers Association Standard for
that arise when analyzing or archiving data from CR test
Digital Imaging and Communication in Medicine
equipment using proprietary data transfer and storage methods.
(DICOM), 2011.
As digital technologies evolve, data must remain decipherable
through the use of open, industry-wide methods for data
3. Terminology
transfer and archival storage. This practice defines a method
3.1 Definitions:
where all standard CR technique parameters and test results are
3.1.1 Nondestructive evaluation terms used in this practice
communicated and stored in a standard manner regardless of
can be found in Terminology E1316.
changes in digital technology.
3.1.2 DICONDE terms used in this practice are defined in
1.3 This practice does not specify:
Practice E2339.
1.3.1 A testing or validation procedure to assess an imple-
4. Summary of Practice
mentation’s conformance to the standard.
4.1 A fundamental principle of DICONDE is the use of
standard definitions and attribute formats for data communica-
tion and storage. This means all systems that are DICONDE
1
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
structive Testing and is the direct responsibility of Subcommittee E07.11 on Digital
2
Imaging and Communication in Nondestructive Evaluation (DICONDE). For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Dec. 15, 2013. Published January 2014. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2010. Last previous edition approved in 2011 as E2738 - 11. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/E2738-13. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2738−13
TABLE 1 NDE CR Image Information Object Definition
...

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.
Designation: E2738 − 11 E2738 − 13
Standard Practice for
Digital Imaging and Communication Nondestructive
Evaluation (DICONDE) for Computed Radiography (CR) Test
1
Methods
This standard is issued under the fixed designation E2738; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This practice facilitates the interoperability of computed radiography (CR) imaging and data acquisition equipment by
specifying image data transfer and archival storage methods in commonly accepted terms. This practice is intended to be used in
conjunction with Practice E2339 on Digital Imaging and Communication in Nondestructive Evaluation (DICONDE). Practice
E2339 defines an industrial adaptation of the NEMA Standards Publication titled Digital Imaging and Communications in
Medicine (DICOM, see http://medical.nema.org), an international standard for image data acquisition, review, storage and archival
storage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display and
analysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a data
dictionary and a set of information modules that are applicable to all NDE modalities. This practice supplements Practice E2339
by providing information object definitions, information modules and a data dictionary that are specific to computed radiography
test methods.
1.2 This practice has been developed to overcome the issues that arise when analyzing or archiving data from CR test equipment
using proprietary data transfer and storage methods. As digital technologies evolve, data must remain decipherable through the use
of open, industry-wide methods for data transfer and archival storage. This practice defines a method where all standard CR
technique parameters and test results are communicated and stored in a standard manner regardless of changes in digital
technology.
1.3 This practice does not specify:
1.3.1 A testing or validation procedure to assess an implementation’s conformance to the standard.
1.3.2 The implementation details of any features of the standard on a device claiming conformance.
1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices each
claiming DICONDE conformance.
1.4 Although this practice contains no values that require units, it does describe methods to store and communicate data that
do require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other units
of measurement are included in this practice.
1.5 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:
E1316 Terminology for Nondestructive Examinations
E1475 Guide for Data Fields for Computerized Transfer of Digital Radiological Examination Data
E2339 Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE)
1
This practice is under the jurisdiction of ASTM Committee E07 on Nondestructive Testing and is the direct responsibility of Subcommittee E07.11 on Digital Imaging
and Communication in Nondestructive Evaluation (DICONDE).
Current edition approved Dec. 1, 2011Dec. 15, 2013. Published January 2012January 2014. Originally approved in 2010. Last previous edition approved in 20102011 as
E2738 - 10.E2738 - 11. DOI: 10.1520/E2738-11.10.1520/E2738-13.
2
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.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E2738 − 13
TABLE 1 NDE CR Image Information Object Definition
DICOM Module DICOND
...

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Standard Test Method for Calibrating and Measuring CT Density

SIGNIFICANCE AND USE
5.1 This test method allows specification of the density calibration procedures to be used to calibrate and perform material density measurements using CT image data. Such measurements can be used to evaluate parts, characterize a particular system, or compare different systems, provided that observed variations are dominated by true changes in object density rather than by image artifacts. The specified procedure may also be used to determine the effective X-ray energy of a CT system.  
5.2 The recommended test method is more accurate and less susceptible to errors than alternative CT-based approaches, because it takes into account the effective energy of the CT system and the energy-dependent effects of the X-ray attenuation process.
FIG. 1 Density Calibration Phantom  
5.3 This (or any) test method for measuring density is valid only to the extent that observed CT-number variations are reflective of true changes in object density rather than image artifacts. Artifacts are always present at some level and can masquerade as density variations. Beam hardening artifacts are particularly detrimental. It is the responsibility of the user to determine or establish, or both, the validity of the density measurements; that is, they are performed in regions of the image which are not overly influenced by artifacts.  
5.4 Linear attenuation and mass attenuation may be measured in various ways. For a discussion of attenuation and attenuation measurement, see Guide E1441 and Practice E1570.
SCOPE
1.1 This test method covers instruction for determining the density calibration of X- and γ-ray computed tomography (CT) systems and for using this information to measure material densities from CT images. The calibration is based on an examination of the CT image of a disk of material with embedded specimens of known composition and density. The measured mean CT values of the known standards are determined from an analysis of the image, and their linear attenuation coefficients are determined by multiplying their measured physical density by their published mass attenuation coefficient. The density calibration is performed by applying a linear regression to the data. Once calibrated, the linear attenuation coefficient of an unknown feature in an image can be measured from a determination of its mean CT value. Its density can then be extracted from a knowledge of its mass attenuation coefficient, or one representative of the feature.  
1.2 CT provides an excellent method of nondestructively measuring density variations, which would be very difficult to quantify otherwise. Density is inherently a volumetric property of matter. As the measurement volume shrinks, local material inhomogeneities become more important; and measured values will begin to vary about the bulk density value of the material.  
1.3 All values are stated in SI units.  
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.

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ASTM E1441-19(Guide)
Standard Guide for Computed Tomography (CT)

SIGNIFICANCE AND USE
5.1 Computed tomography (CT) is a radiographic reconstruction method that provides a sensitive technique whenever the primary goal is to locate and size planar and volumetric detail in three dimensions.  
5.2 CT provides quantitative volume images as a function of density and element number (attenuation coefficient) by means of computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object, allowing the user to see inside the object without cutting. CT is considered much easier to interpret than conventional radiographic data due to the elimination of overlapping structures. The new user can learn quickly to read CT data because the images correspond more closely to the way the human mind visualizes three-dimensional structures than conventional projection radiography. Further, because CT slices and volumes are digital, they may be enhanced, analyzed, compressed, archived, input as data into performance calculations, compared with digital data from other NDE modalities, or transmitted to other locations for remote viewing.
SCOPE
1.1 CT is a radiographic examination technique that generates digital images in three dimensions of an object, including the interior structure. Because of the relatively good penetrability of X-rays, CT permits the nondestructive physical and, to a limited extent, chemical characterization of the internal structure of materials. Also, since the method is X-ray based, it applies equally well to metallic and non-metallic specimens, solid and fibrous materials, and smooth and irregularly surfaced objects.  
1.2 This guide is intended to satisfy two general needs for users of industrial CT equipment: (1) the need for a tutorial guide addressing the general principles of X-ray CT as they apply to industrial imaging; and (2) the need for a consistent set of CT performance parameter definitions, including how these performance parameters relate to CT system specifications.  
1.3 This guide does not specify CT examination techniques, such as the best selection of scan parameters, the preferred implementation of scan procedures, or the establishment of accept/reject criteria for a new object.  
1.4 Units—No units are mentioned in this document. However, for CT, values are typically stated in SI units and are regarded as standard.  
1.5 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.  
1.6 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.

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ASTM
ASTM E3398-23(Guide)
Standard Guide for Digital Neutron Radiography

SIGNIFICANCE AND USE
4.1 Purpose—Practices to be employed for the radiographic examination of materials and components with neutrons using digital neutron detectors are outlined herein. They are intended as a guide for the assessment of a digital neutron radiograph’s characteristics. For information on neutron beam lines for imaging and film neutron radiography, refer to Guide E748.  
4.2 Limitations—Acceptance standards have not been established for any material or production process. Neutron radiography, whether performed by means of a reactor, an accelerator, subcritical assembly, or radioactive source, will be consistent in sensitivity and spatial resolution only if the consistency of all details of the technique, such as neutron source, collimation, geometry, imaging system, etc., are maintained. This guide is limited to the use of digital neutron detectors in combination with neutron conversion materials for image recording. This guide is intended for use with thermal and cold neutron spectrums. The production of thermal neutron radiographs by employing the use of film and appropriate conversion screens is covered in Guide E748.  
4.3 Interpretation and Acceptance Standards—Interpretat- ion and acceptance standards are not covered by this guide. Designation of accept-reject standards is recognized to be within the cognizance of product specifications.  
4.4 Other Aspects of the Neutron Radiographic Process—For many important aspects of neutron radiography such as technique, files, viewing of radiographs, storage of radiographs, film processing, and record keeping, refer to Guide E94, which covers these aspects for X-ray radiography. (See Section 2.)
SCOPE
1.1 This guide covers the evaluation, qualification, and quantification of digital neutron images. These images can be acquired by many methods, including: neutron sensitive imaging plates (Computed Radiography – CR), Digital Detector Arrays – DDA’s (amorphous silicon, CMOS, CCD, etc.), micro-channel plates, neutron sensitive fluoroscopes, neutron sensitive scintillators coupled to optical cameras, digitized radiographic films, and linear diode arrays.  
1.2 This guide does not purport to establish what is considered an acceptable image but is intended to only give guidance on digital neutron imaging, as well as image quality metrics of importance, and how they can be measured and reported.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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.

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ASTM E2738-23(Practice)
Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE) for Computed Radiography (CR) Test Methods

SIGNIFICANCE AND USE
5.1 Personnel that are responsible for the creation, transfer, and storage of computed radiography NDE data will use this practice. This practice will define a set of information modules that along with the Practice E2339 and the DICOM standard will provide a standard means to organize CR inspection data. The CR inspection data may be displayed and analyzed on any device that conforms to the standard. Personnel wishing to view any CR inspection data stored in accordance with Practice E2339 may use this practice to help them decode and display the data contained in the DICONDE compliant inspection record.
SCOPE
1.1 This practice covers the interoperability of computed radiography (CR) imaging and data acquisition equipment by specifying image data transfer and archival storage methods in commonly accepted terms. This practice is intended to be used in conjunction with Practice E2339 on Digital Imaging and Communication in Nondestructive Evaluation (DICONDE). Practice E2339 defines an industrial adaptation of NEMA PS3 / ISO 12052 (DICOM, see http://medical.nema.org), an international standard for image data acquisition, review, storage, and archival storage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display and analysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a data dictionary and a set of information modules that are applicable to all NDE modalities. This practice supplements Practice E2339 by providing information object definitions, information modules and a data dictionary that are specific to computed radiography test methods.  
1.2 This practice has been developed to overcome the issues that arise when analyzing or archiving data from CR test equipment using proprietary data transfer and storage methods. As digital technologies evolve, data must remain decipherable through the use of open, industry-wide methods for data transfer and archival storage. This practice defines a method where all standard CR technique parameters and test results are communicated and stored in a standard manner regardless of changes in digital technology.  
1.3 This practice does not specify:  
1.3.1 A testing or validation procedure to assess an implementation's conformance to the standard.  
1.3.2 The implementation details of any features of the standard on a device claiming conformance.  
1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices each claiming DICONDE conformance.  
1.4 Although this practice contains no values that require units, it does describe methods to store and communicate data that do require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other units of measurement are included in this practice.  
1.5 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.  
1.6 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.

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ASTM
ASTM E2699-23(Practice)
Standard Practice for Digital Imaging and Communication in Nondestructive Evaluation (DICONDE) for Digital X-ray (DX) Test Methods

SIGNIFICANCE AND USE
5.1 Personnel that are responsible for the creation, transfer, and storage of digital X-ray test results will use this standard. This practice defines a set of information modules that, along with Practice E2339 and the DICOM standard, provides a standard means to organize digital X-ray test parameters and results. The digital X-ray test results may be displayed and analyzed on any device that conforms to this standard. Personnel wishing to view any digital X-ray inspection data stored according to Practice E2339 may use this document to help them decode and display the data contained in the DICONDE-compliant inspection record.
SCOPE
1.1 This practice covers the interoperability of digital X-ray imaging equipment using Digital Detector Arrays (DDA) as described in Practice E2698 by specifying image data transfer and archival methods in commonly accepted terms. A separate practice, Practice E2738, addresses this topic for digital X-ray imaging equipment using Computed Radiography (CR). This document is intended to be used in conjunction with Practice E2339 on Digital Imaging and Communication in Nondestructive Evaluation (DICONDE). Practice E2339 defines an industrial adaptation of DICOM NEMA PS3 / ISO 12052 (DICOM, see http://medical.nema.org), an international standard for image data acquisition, review, storage, and archival storage. The goal of Practice E2339, commonly referred to as DICONDE, is to provide a standard that facilitates the display and analysis of NDE results on any system conforming to the DICONDE standard. Toward that end, Practice E2339 provides a data dictionary and a set of information modules that are applicable to all NDE modalities. This practice supplements Practice E2339 by providing information object definitions, information modules, and a data dictionary that are specific to digital X-ray test methods.  
1.2 This practice has been developed to overcome the issues that arise when analyzing or archiving data from digital X-ray test equipment using proprietary data transfer and storage methods. As digital technologies evolve, data must remain decipherable through the use of open, industry-wide methods for data transfer and archival storage. This practice defines a method where all the digital X-ray technique parameters and test results are communicated and stored in a standard manner regardless of changes in digital technology.  
1.3 This practice does not specify:  
1.3.1 A testing or validation procedure to assess an implementation's conformance to the standard.  
1.3.2 The implementation details of any features of the standard on a device claiming conformance.  
1.3.3 The overall set of features and functions to be expected from a system implemented by integrating a group of devices each claiming DICONDE conformance.  
1.4 Units—Although this practice contains no values that require units, it does describe methods to store and communicate data that do require units to be properly interpreted. The SI units required by this practice are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 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.  
1.6 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.

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