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ASTM E2023-99

(Practice)

Standard Practice for Fabrication of Neutron Radiographic Sensitivity Indicators

Standard Practice for Fabrication of Neutron Radiographic Sensitivity Indicators

SCOPE
1.1 This practice covers the fabrication of Sensitivity Indicators (SI), 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 inch-pound units are regarded as the standard. The SI equivalents given in parentheses in the text are for information only.
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
09-Jun-1999
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 E2023-99(2004) - Standard Practice for Fabrication of Neutron Radiographic Sensitivity 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-Jun-1999

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ASTM E2023-99 - Standard Practice for Fabrication of Neutron Radiographic Sensitivity IndicatorsASTM E2023-99 - Standard Practice for Fabrication of Neutron Radiographic Sensitivity Indicators
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ASTM E2023-99 - Standard Practice for Fabrication of Neutron Radiographic Sensitivity 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E 2023 – 99
Standard Practice for
Fabrication of Neutron Radiographic Sensitivity Indicators
This standard is issued under the fixed designation E 2023; 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.
1. Scope 4.2 Neutron radiography practices are discussed in Practices
E 748. The neutron radiograph used to determine image quality
1.1 This practice covers the fabrication of Sensitivity Indi-
using the SI shall meet the requirements of Method E 545.
cators (SI), which can be used to determine the relative quality
of radiographic images produced by direct, thermal neutron
5. Significance and Use
radiographic examination.
5.1 The only truly valid image quality indicator is a material
1.2 The values stated in inch-pound units are regarded to be
or component, equivalent to the part being neutron radio-
standard. The SI equivalents given in parentheses in the text are
graphed, with a known standard discontinuity, inclusion, omis-
for information only.
sion or flaw (reference standard comparison part). The SI is
1.3 This standard does not purport to address all of the
designed to substitute for the reference standard, providing
safety concerns, if any, associated with its use. It is the
qualitative information on hole and gap sensitivity in a single
responsibility of the user of this standard to establish appro-
unit. Fabrication in accordance with this practice is vital for
priate safety and health practices and determine the applica-
accurate and consistent measurements.
bility of regulatory limitations prior to use.
5.2 This practice shall be followed for the fabrication of all
2. Referenced Documents SIs to be used with Method E 545 to determine image quality
in direct thermal neutron radiography.
2.1 ASTM Standards:
E 543 Practice for Evaluating Agencies Performing Nonde-
6. Basis of Application
structive Testing
6.1 Qualification of Nondestructive Agencies—If specified
E 545 Method for Determining Image Quality in Direct
2 in the contractual agreement, NDT agencies shall be qualified
Thermal Neutron Radiographic Examination
and evaluated as described in Practice E 543. The applicable
E 748 Practices for Thermal Neutron Radiography of Ma-
2 edition of Practice E 543 shall be specified in the contractual
terials
2 agreement.
E 1316 Terminology for Nondestructive Examinations
6.2 Procedures and Techniques—The procedures and tech-
3. Terminology niques to be utilized shall be as described in this practice unless
otherwise specified. Specific techniques may be specified in the
3.1 Definitions—For definitions of terms used in this prac-
contractual agreement.
tice, see Terminology E 1316, Section H.
6.3 Reporting Criteria/Acceptance Criteria—Reporting cri-
4. Summary of Practice teria for the examination results shall be in accordance with
Sections 9 and 10 unless otherwise specified. Acceptance
4.1 The Sensitivity Indicator (SI) is used for qualitative
criteria, for example, reference radiographs, shall be specified
determination of the sensitivity of detail visible on the neutron
in the contractual agreement.
radiograph. It consists of a step wedge containing gaps and
6.4 Reexamination of repaired/reworked items is not ad-
holes of known dimensions. Visual inspection of the image of
dressed in this practice and, if required, shall be specified in the
this device provides subjective information regarding total
contractual document.
radiographic sensitivity with respect to the step-block material,
as well as optional subjective data, regarding detrimental levels
7. Sensitivity Indicator (SI)
of gamma exposure.
7.1 The Sensitivity Indicator (SI) shall be constructed of
cast acrylic resin, lead (optional), and aluminum. The construc-
tion and dimensions are shown in Fig. 1.
This practice is under the jurisdiction of ASTM Committee E-7 on Nonde-
7.2 The optional lead step in the SI may be replaced with a
structive Testing and is the direct responsibility of Subcommittee E07.05 on
blank, cast acrylic resin step. The lead provides a visual
Radiology (Neutron) Method.
indication of beam gamma content; however, the lead image is
Current edition approved June 10, 1999. Published August 1999.
Annual Book of ASTM Standards, Vol 03.03. not used for any of the SI calculations of Method E 545.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
E2023–99
Material — Methylmethacrylate
Shim Thickness Hole Diameter
A 0.005 0.005
B 0.010 0.010
C 0.020 0.020
D 0.010 0.010
NOTE 1—All dimensions are in inches.
NOTE 2—The lead step may be replaced with a methylmethacrylate strip with the D shim eliminated.
FIG. 1 Sensitivity Indicator
7.3 The acrylic resin shall be methylmethacrylate. 6.5-in. (165-mm) long. The near edge of channel A should be
7.4 All dimensional tolerances are as noted on the figures. 0.450-in. (11.4-mm) from edge A (see Fig. 3).
7.5 Aluminum shims and strips shall be 99.9 % pure el- 8.1.3 Mill the B Channel, adjacent to the A channel,
emental material. 0.125-in. (3.18-mm) wide 3 0.010-in. (0.254-mm) deep 3
7.6 The SI may be encased in a 6061 aluminum dust cover, 6.5-in. (165-mm) long. The near edge of channel B should be
0.012-in. (0.305-mm) thick. 0.325-in. (8.26-mm) from edge A (see Fig. 3).
7.7 When used, the optional lead shim shall be at least 8.1.4 Mill the C Channel, adjacent to the B channel,
99.9 % pure elemental material. 0.125-in. (3.18-mm) wide 3 0.020-in. (0.508-mm) deep 3
6.5-in. (165-mm) long. The near edge of channel C should be
8. Fabrication
0.200 in. (5.08 mm) from edge A (see Fig. 3).
8.1 Components: 8.1.5 Optional—Mill the D channel adjacent to the C
8.1.1 Mill a Channel, 0.850-in. (21.6-mm) wide 3 6.5-in. channel, 0.125-in. (3.18-mm) wide 3 0.010-in. (0.254-mm)
(165-mm) long from an aluminum block, 1-in. (25.4-mm) wide deep 3 6.5-in. (165-mm) long. The near edge of channel D
3 at least 0.303-in. (7.70-mm) high 3 6.5-in. (165-mm) long. should be 0.075-in. (1.90-mm) from edge A.
The channel should begin 0.075-in. (1.90-mm) from edge A
NOTE 1—The D channel is not required and shall not be milled if the
and leave 0.103-in. (2.62-cm) aluminum in the bottom of the
lead shim is not to be used.
channel (see Fig. 2).
8.1.6 Prepare five methylmethacrylate strips, 0.060-in.
8.1.2 Mill the A Channel (see Fig. 1), within this channel,
(1.52-mm) thick 3 at least 0.200-in. (5.08-mm) wide 3 6.5-in.
0.125-in. (3.18-mm) wide3 0.005-in. (0.127-mm) deep 3
(165-mm) long. These strips will be used in 8.2.11.
8.1.7 Prepare four methylmethacrylate strips, 0.125-in.
(3.18-mm) thick 3 at least 0.200-in. (5.08-mm) wide 3 6.5-in.
The instructions in Section 8 assume the simultaneous fabrication of five units
for practical reasons. Units may be fabricated singly, if desired. (165-mm) long. One of the methylmethacrylate strips may be
E2023–99
NOTE 1—Unless otherwise specified, use the following:
Dimensions are in inches.
Tolerances on machined dimensions: .XX = 6 .01 .XXX = 6 .002.
FIG. 2 Main Channel in Aluminum Block
replaced with an optional lead strip of the same dimensions. To verify that the various shims have the proper holes drilled
These strips will be used in 8.2.5. into them, a certified hole measurement report is required.
8.1.8 Prepare one each strip from aluminum shim stock, at
8.1.11 To keep the SI intact during use, it is highly recom-
least 0.200-in. (5.08-mm) wide 3 6.5-in. (165-mm) long, with
mended that a dust cover be kept on the unit. One dust cover
the following thickness: for each SI may be prepared from aluminum shim stock,
2 2
0.0005 in. (0.0127 mm) 0.012-in. (0.305-mm) thick 3 1.50-in. (38.1-mm ) by cutting
2 2
0.0010 in. (0.0254 mm)
out a 0.250-in. (6.35-mm ) from each corner and folding the
0.0020 in. (0.0508 mm)
2 2
aluminum to form a cover, 1-in. (25.4-mm ) 3 0.250-in.
0.0030 in. (0.0762 mm)
0.0040 in. (0.102 mm) (6.35-mm) high (see Fig. 1).
0.0050 in. (0.127 mm)
8.2 Assembly:
0.0100 in. (0.254 mm)
8.2.1 Insert Shim C into the C channel milled in 8.1.4 (see
8.1.9 Prepare one each methylmethacrylate strip to fit
Fig. 5).
snugly in the 0.125-in. (3.18-mm) wide 3 6.5-in. (165-mm)
8.2.2 Insert Shim B into the adjacent B channel milled in
long with the following thickness:
...

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4.2 Radiochromic film dosimetry systems are commonly used in industrial radiation processing, for example in the sterilization of medical devices and the irradiation of foods.
SCOPE
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1.3 This document is one of a set of standards that provides recommendations for properly implementing dosimetry in radiation processing, and describes a means of achieving compliance with the requirements of ISO/ASTM 52628 “Practice for Dosimetry in Radiation Processing” for a radiochromic film dosimetry system. It is intended to be read in conjunction with ISO/ASTM 52628.  
1.4 This practice covers the use of radiochromic film dosimetry systems under the following conditions:  
1.4.1 The absorbed dose range is 1 Gy to 150 kGy.  
1.4.2 The absorbed dose rate is 1 × 10-2 to 1 × 1013 Gy·s-1 (1-4).2  
1.4.3 The photon energy range is 0.1 to 50 MeV.  
1.4.4 The electron energy range is 70 keV to 50 MeV.  
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 E2003-20(Practice)
Standard Practice for Fabrication of the Neutron Radiographic Beam Purity Indicators

SIGNIFICANCE AND USE
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.
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 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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.  
1.4 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 C1178/C1178M-24(Specification)
Standard Specification for Coated Glass Mat Water-Resistant Gypsum Backing Panel

ABSTRACT
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.
SCOPE
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.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Within the text, the SI units are shown in brackets.  
1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.  
1.4 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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