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ASTM E2003-98(2004)

(Practice)

Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

SIGNIFICANCE AND USE
The BPI is designed to yield quantitative information concerning neutron beam and image system parameters that contribute to film exposure, and thereby, affect overall image quality. For proper measurements of film exposure due to the neutron beam constituents, the BPI must be fabricated in accordance with this practice.
This practice shall be followed for the fabrication of all Beam Purity Indicators to be used with Method E 545 to determine image quality in direct thermal neutron radiography.
SCOPE
1.1 This practice covers the material and fabrication of a Beam Purity Indicator (BPI), which can be used to determine the relative quality of radiographic images produced by direct, thermal neutron radiographic examination.
1.2 The values stated in SI units are regarded to be standard.
1.3 This standard does not purport to address 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
30-Apr-2004
ICS
37.040.25 - Radiographic films
Technical Committee
E07 - Nondestructive Testing
Drafting Committee
E07.05 - Radiology (Neutron) Method
Current Stage
Ref Project

Relations

Replaces
ASTM E2003-98e1 - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
Effective Date
01-May-2004
Replaced By
ASTM E2003-10 - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
Effective Date
01-Jan-2010
Referred By
ASTM E545-19 - Standard Test Method for Determining Image Quality in Direct Thermal Neutron Radiographic Examination
Effective Date
01-May-2004

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ASTM E2003-98(2004) - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity IndicatorsASTM E2003-98(2004) - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
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ASTM E2003-98(2004) - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
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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:E2003–98 (Reapproved 2004)
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
Indicators
This standard is issued under the fixed designation E2003; 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 of the device permit quantitative determination of radiographic
contrast, low-energy photon contribution, pair production con-
1.1 This practice covers the material and fabrication of a
tribution, image unsharpness, and information regarding film
Beam Purity Indicator (BPI), which can be used to determine
and processing quality.
the relative quality of radiographic images produced by direct,
4.2 Neutron radiography practices are discussed in Practice
thermal neutron radiographic examination.
E748.E1316
1.2 The values stated in SI units are regarded to be standard.
1.3 This standard does not purport to address the safety
5. Significance and Use
concerns, if any, associated with its use. It is the responsibility
5.1 The BPI is designed to yield quantitative information
of the user of this standard to establish appropriate safety and
concerning neutron beam and image system parameters that
health practices and determine the applicability of regulatory
contribute to film exposure, and thereby, affect overall image
limitations prior to use.
quality. For proper measurements of film exposure due to the
2. Referenced Documents neutron beam constituents, the BPI must be fabricated in
accordance with this practice.
2.1 ASTM Standards:
5.2 This practice shall be followed for the fabrication of all
E543 Specification for Agencies Performing Nondestruc-
Beam Purity Indicators to be used with Method E545 to
tive Testing
determine image quality in direct thermal neutron radiography.
E545 Test Method for Determining Image Quality in Direct
Thermal Neutron Radiographic Examination
6. Basis of Application
E748 Practices for Thermal Neutron Radiography of Mate-
6.1 Qualification of Nondestructive Agencies—If specified
rials
in the contractual agreement, NDT agencies shall be qualified
E1316 Terminology for Nondestructive Examinations
and evaluated as described in Practice E543. The applicable
3. Terminology revision of Practice E543 shall be specified in the contractual
agreement.
3.1 Definitions— For definitions of terms used in this
6.2 Procedures and Techniques—The procedures and tech-
practice, see Terminology E1316, Section H.
niquestobeutilizedshallbeasdescribedinthispracticeunless
4. Summary of Practice otherwisespecified.Specifictechniquesmaybespecifiedinthe
contractual agreement.
4.1 The BPI is used for quantitative determination of
6.3 Reporting Criteria/Acceptance Criteria—Reporting cri-
thermal neutron radiographic quality. It consists of a polytet-
teria for the examination results shall be in accordance with
rafluoroethylene block containing two boron nitride disks, two
Sections 9 and 10 unless otherwise specified. Acceptance
lead disks and two cadmium wires.Akey feature of the device
criteria, for example, for reference radiographs, shall be
is the ability to make visual analysis of its image for subjective
specified in the contractual agreement.
quality information. Densitometric measurements of the image
6.4 Reexamination of Repaired/Reworked Items—
Reexamination of repaired/reworked items is not addressed in
This practice is under the jurisdiction of ASTM Committee E07 on Nonde-
this practice and, if required, shall be specified in the contrac-
structive Testing and is the direct responsibility of Subcommittee E07.05 on
tual agreement.
Radiology (Neutron) Method.
Current edition approved May 1, 2004. Published June 2004. Originally
´1
7. Beam Purity Indicator (BPI)
approved in 1998. Last previous edition approved in 1998 as E2003 - 98 . DOI:
10.1520/E2003-98R04.
7.1 The BPI shall be constructed of polytetrafluoroethylene,
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cadmium, lead, and boron nitride.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E2003–98 (2004)
7.2 The construction and dimensions shall be as shown in 8.1.7 Prepare a 4-mm diameter rod of boron nitride (a lathe
Fig. 1. may be used).
7.3 The BPI may be encased in a frame for easy mounting 8.1.8 Cut off two 2-mm thick disks from the rod machined
but shall not be enclosed in a dust cover nor shall any material in 8.1.7.
cover either side of the BPI face. 8.1.9 Prepare a 4-mm diameter rod of
...

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5.1 The BPI is designed to yield quantitative information concerning neutron beam and image system parameters that contribute to film exposure and, thereby, affect overall image quality. For proper measurements of film exposure due to the neutron beam constituents, the BPI must be fabricated in accordance with this practice.  
5.2 This practice shall be followed for the fabrication of all Beam Purity Indicators to be used with Test Method E545 to determine image quality in direct thermal neutron radiography.
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This specification covers SEBS (styrene-ethylenebutylene-styrene)-modified mopping asphalt intended for use in built-up roof construction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for adhering insulation boards used in various types of roofing systems. This specification is intended as a material specification and issues regarding the suitability of specific roof constructions or application techniques are beyond its scope. The specified tests and property values are intended to establish minimum properties. In place system design criteria or performance attributes are factors beyond the scope of this specification. The base asphalt shall be prepared from crude petroleum and the SEBS-modified asphalt shall incorporate sufficient SEBS as the primary polymeric modifier. The SEBS modified asphalt shall be homogeneous and free of water and shall conform to the prescribed physical properties including (1) softening point before and after heat exposure, (2) softening point change, (3) flash point, (4) penetration before and after heat exposure, (5) penetration change, (6) solubility in trichloroethylene, (7) tensile elongation, (8) elastic recovery, and (9) low temperature flexibility. The sampling and test methods to determine compliance with the specified physical properties, as well as the evaluation for stability during heat exposure are detailed.
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1.1 This specification covers SEBS (styrene-ethylene-butylene-styrene)-modified asphalt intended for use in built-up roof construction, construction of some modified bitumen systems, construction of bituminous vapor retarder systems, and for adhering insulation boards used in various types of roof systems.  
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1.5 This standard does not purport to address 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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