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ASTM E2003-98e1

(Practice)

Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

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.
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
09-Feb-2000
ICS
37.040.25 - Radiographic films
Technical Committee
E07 - Nondestructive Testing
Drafting Committee
E07.05 - Radiology (Neutron) Method
Current Stage
Ref Project

Relations

Replaced By
ASTM E2003-98(2004) - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
Effective Date
01-May-2004
Referred By
ASTM E545-19 - Standard Test Method for Determining Image Quality in Direct Thermal Neutron Radiographic Examination
Effective Date
10-Feb-2000

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ASTM E2003-98e1 - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity IndicatorsASTM E2003-98e1 - Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators
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ASTM E2003-98e1 - 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e1
Designation: E 2003 – 98
Standard Practice for
Fabrication of the Neutron Radiographic Beam Purity
Indicators
This standard is issued under the fixed designation E 2003; 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 (e) indicates an editorial change since the last revision or reapproval.
e NOTE—The designation number was corrected editorially in February 2000.
1. Scope contrast, low-energy photon contribution, pair production con-
tribution, image unsharpness, and information regarding film
1.1 This practice covers the material and fabrication of a
and processing quality.
Beam Purity Indicator (BPI), which can be used to determine
4.2 Neutron radiography practices are discussed in Practice
the relative quality of radiographic images produced by direct,
E 748.
thermal neutron radiographic examination.
1.2 The values stated in SI units are regarded to be standard.
5. Significance and Use
1.3 This standard does not purport to address the safety
5.1 The BPI is designed to yield quantitative information
concerns, if any, associated with its use. It is the responsibility
concerning neutron beam and image system parameters that
of the user of this standard to establish appropriate safety and
contribute to film exposure, and thereby, affect overall image
health practices and determine the applicability of regulatory
quality. For proper measurements of film exposure due to the
limitations prior to use.
neutron beam constituents, the BPI must be fabricated in
2. Referenced Documents accordance with this practice.
5.2 This practice shall be followed for the fabrication of all
2.1 ASTM Standards:
Beam Purity Indicators to be used with Method E 545 to
E 543 Practice for Agencies Performing Nondestructive
determine image quality in direct thermal neutron radiography.
Testing
E 545 Method for Determining Image Quality in Direct
6. Basis of Application
Thermal Neutron Radiographic Examination
6.1 Qualification of Nondestructive Agencies—If specified
E 748 Practices for Thermal Neutron Radiography of Ma-
2 in the contractual agreement, NDT agencies shall be qualified
terials
2 and evaluated as described in Practice E 543. The applicable
E 1316 Terminology for Nondestructive Examinations
revision of Practice E 543 shall be specified in the contractual
3. Terminology agreement.
6.2 Procedures and Techniques—The procedures and tech-
3.1 Definitions— For definitions of terms used in this
niques to be utilized shall be as described in this practice unless
practice, see Terminology E 1316, Section H.
otherwise specified. Specific techniques may be specified in the
4. Summary of Practice contractual agreement.
6.3 Reporting Criteria/Acceptance Criteria—Reporting cri-
4.1 The BPI is used for quantitative determination of
teria for the examination results shall be in accordance with
thermal neutron radiographic quality. It consists of a polytet-
Sections 9 and 10 unless otherwise specified. Acceptance
rafluoroethylene block containing two boron nitride disks, two
criteria, for example, for reference radiographs, shall be
lead disks and two cadmium wires. A key feature of the device
specified in the contractual agreement.
is the ability to make visual analysis of its image for subjective
6.4 Reexamination of Repaired/Reworked Items—
quality information. Densitometric measurements of the image
Reexamination of repaired/reworked items is not addressed in
of the device permit quantitative determination of radiographic
this practice and, if required, shall be specified in the contrac-
tual agreement.
This practice is under the jurisdiction of ASTM Committee E-07 on Nonde-
structive Testing and is the direct responsibility of Subcommittee E07.05 on 7. Beam Purity Indicator (BPI)
Radiology (Neutron) Method.
7.1 The BPI shall be constructed of polytetrafluoroethylene,
Current edition approved Dec. 10, 1998. Published February 1999.
cadmium, lead, and boron nitride.
Annual Book of ASTM Standards, Vol 03.03.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
e1
E2003–98
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 lead (a lathe may be
7.4 Cadmium and lead shall be at least 99.9 % pure elemen- used).
tal material. 8.1.10 Cut off two 2-mm thick dis
...

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This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile. Coated glass mat water-resistant gypsum backing panel shall consist of a noncombustible water-resistant gypsum core, surfaced with glass mat, partially or completely embedded in the core, and with a water-resistant coating on one surface. The specimens shall be tested for flexural strength, humidified deflection, core hardness, end hardness, edge hardness, nail pull resistance, water resistance, and surface water absorption. Coated glass mat water-resistant gypsum backing panel shall have surfaces true and free of imperfections that render the panel unfit for its designed use.
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1.1 This specification covers coated glass mat water-resistant gypsum backing panel designed for use on ceilings and walls in bath and shower areas as a base for the application of ceramic or plastic tile.  
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