ISO/ASTM 51538:2017
(Main)Practice for use of the ethanol-chlorobenzene dosimetry system
Practice for use of the ethanol-chlorobenzene dosimetry system
1.1 This practice covers the preparation, handling, testing, and procedure for using the ethanol-chlorobenzene (ECB) dosimetry system to measure absorbed dose to water when exposed to ionizing radiation. The system consists of a dosimeter and appropriate analytical instrumentation. For simplicity, the system will be referred to as the ECB system. The ECB dosimeter is classified as a type I dosimeter on the basis of the effect of influence quantities. The ECB dosimetry system may be used as a reference standard dosimetry system or as a routine dosimetry system. 1.2 ISO/ASTM 51538 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 Practice 52628 for the ECB system. It is intended to be read in conjunction with ISO/ASTM Practice 52628. 1.3 This practice describes the mercurimetric titration analysis as a standard readout procedure for the ECB dosimeter when used as a reference standard dosimetry system. Other readout methods (spectrophotometric, oscillometric) that are applicable when the ECB system is used as a routine dosimetry system are described in Annex A1 and Annex A2. 1.4 This practice applies only to gamma radiation, X-radiation/bremsstrahlung, and high energy electrons. 1.5 This practice applies provided the following conditions are satisfied: 1.5.1 The absorbed dose range is between 10 Gy and 2 MGy for gamma radiation and between 10 Gy and 200 kGy for high current electron accelerators (1, 2) (Warning?the boiling point of ethanol chlorobenzene solutions is approximately 80 °C. Ampoules may explode if the temperature during irradiation exceeds the boiling point. This boiling point may be exceeded if an absorbed dose greater than 200 kGy is given in a short period of time.) 1.5.2 The absorbed-dose rate is less than 106 Gy s−1(2). 1.5.3 For radionuclide gamma-ray sources, the initial pho-ton energy is greater than 0.6 MeV. For bremsstrahlung photons, the energy of the electrons used to produce the bremsstrahlung photons is equal to or greater than 2 MeV. For electron beams, the initial electron energy is greater than 8 MeV (3). NOTE 1 The same response relative to 60Co gamma radiation was obtained in high-power bremsstrahlung irradiation produced bya5MeV electron accelerator (4). NOTE 2 The lower energy limits are appropriate for a cylindrical dosimeter ampoule of 12-mm diameter. Corrections for dose gradients across the ampoule may be required for electron beams. The ECB system may be used at lower energies by employing thinner (in the beam direction) dosimeters (see ICRU Report 35). The ECB system may also be used at X-ray energies as low as 120 kVp (5). However, in this range of photon energies the effect caused by the ampoule wall is considerable. NOTE 3 The effects of size and shape of the dosimeter on the response of the dosimeter can adequately be taken into account by performing the appropriate calculations using cavity theory (6). 1.5.4 The irradiation temperature of the dosimeter is within the range from −30 °C to 80 °C. NOTE 4 The temperature dependence of dosimeter response is known only in this range (see 5.2). For use outside this range, the dosimetry system should be calibrated for the required range of irradiation tempera-tures. 1.6 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 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. Specific warnings are given in 1.5.1, 9.2 and 10.2. 1.7 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the Development of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technical
Pratique de l'utilisation d'un système dosimétrique à l'éthanol chlorobenzène
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INTERNATIONAL ISO/ASTM
STANDARD 51538
Third edition
2017-09
Practice for use of the ethanol-
chlorobenzene dosimetry system
Pratique de l'utilisation d'un système dosimétrique à l'éthanol
chlorobenzène
Reference number
©
ISO/ASTM International 2017
© ISO/ASTM International 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
Ch. de Blandonnet 8 • CP 401 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva, Switzerland West Conshohocken, PA 19428-2959, USA
Tel. +41 22 749 01 11 Tel. +610 832 9634
Fax +41 22 749 09 47 Fax +610 832 9635
copyright@iso.org khooper@astm.org
www.iso.org www.astm.org
ii © ISO/ASTM International 2017 – All rights reserved
Contents Page
1 Scope. 1
2 Referenced documents. 2
3 Terminology. 2
4 Significance and use. 3
5 Effect of Influence Quantities. 3
6 Interferences. 4
7 Apparatus. 4
8 Reagents. 4
9 Preparation of dosimeters. 4
10 Calibration of the mercuric nitrate solution. 5
11 Calibration of the dosimetry system. 5
12 Application of dosimetry system. 6
13 Minimum documentation requirements. 6
14 Measurement Uncertainty. 6
15 Keywords. 6
Annexes. 7
Table 1 Radiationchemicalyields(G)fortheformationofHClintypicalECBsolutionformulations. 3
−1
Table 2 Temperature coefficients k (°C) for typical ECB solution formulations as derived from
Ref (17). 4
Table A3.1 Characteristics of some applicable methods. 10
© ISO/ASTM International 2017 – All rights reserved iii
Foreword
ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of
ISO documents should be noted. International Standards are drafted in accordance with the editorial rules of
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ASTM International is one of the world’s largest voluntary standards development organizations with global
participation from affected stakeholders. ASTM technical committees follow rigorous due process balloting
procedures.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and ASTM International shall be held responsible for identifying any or all such patent rights.
DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/
iso/foreword.html.
This document was prepared by ASTM Committee E61 Radiation Processing and by Technical Committee
ISO/TC 85, nuclear energy, nuclear technologies and radiological protection.
This third edition cancels and replaces the second edition (ISO/ASTM 51538:2009), which has been
technically revised.
iv © ISO/ASTM International 2017 – All rights reserved
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.
Standard Practice for
Use of the Ethanol-Chlorobenzene Dosimetry System
This standard is issued under the fixed designation ISO/ASTM 51538; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision.
1. Scope point of ethanol chlorobenzene solutions is approximately
80 °C. Ampoules may explode if the temperature during
1.1 This practice covers the preparation, handling, testing,
irradiation exceeds the boiling point. This boiling point may be
and procedure for using the ethanol-chlorobenzene (ECB)
exceeded if an absorbed dose greater than 200 kGy is given in
dosimetry system to measure absorbed dose to water when
a short period of time.)
exposed to ionizing radiation. The system consists of a
6 −1
1.5.2 The absorbed-dose rate is less than 10 Gy s (2).
dosimeter and appropriate analytical instrumentation. For
1.5.3 For radionuclide gamma-ray sources, the initial pho-
simplicity, the system will be referred to as the ECB system.
ton energy is greater than 0.6 MeV. For bremsstrahlung
The ECB dosimeter is classified as a type I dosimeter on the
photons, the energy of the electrons used to produce the
basis of the effect of influence quantities. The ECB dosimetry
bremsstrahlung photons is equal to or greater than 2 MeV. For
system may be used as a reference standard dosimetry system
electron beams, the initial electron energy is greater than 8
or as a routine dosimetry system.
MeV (3).
1.2 This document is one of a set of standards that provides
NOTE 1—The same response relative to Co gamma radiation was
recommendations for properly implementing dosimetry in
obtained in high-power bremsstrahlung irradiation produced bya5MeV
radiation processing, and describes a means of achieving
electron accelerator (4).
compliance with the requirements of ISO/ASTM Practice
NOTE 2—The lower energy limits are appropriate for a cylindrical
52628 for the ECB system. It is intended to be read in dosimeter ampoule of 12-mm diameter. Corrections for dose gradients
across the ampoule may be required for electron beams. The ECB system
conjunction with ISO/ASTM Practice 52628.
may be used at lower energies by employing thinner (in the beam
1.3 This practice describes the mercurimetric titration
direction) dosimeters (see ICRU Report 35). The ECB system may also be
used at X-ray energies as low as 120 kVp (5). However, in this range of
analysis as a standard readout procedure for the ECB dosimeter
photon energies the effect caused by the ampoule wall is considerable.
when used as a reference standard dosimetry system. Other
NOTE 3—The effects of size and shape of the dosimeter on the response
readout methods (spectrophotometric, oscillometric) that are
of the dosimeter can adequately be taken into account by performing the
applicable when the ECB system is used as a routine dosimetry
appropriate calculations using cavity theory (6).
system are described in Annex A1 and Annex A2.
1.5.4 The irradiation temperature of the dosimeter is within
1.4 This practice applies only to gamma radiation,
the range from −30 °C to 80 °C.
X-radiation/bremsstrahlung, and high energy electrons.
NOTE 4—The temperature dependence of dosimeter response is known
only in this range (see 5.2). For use outside this range, the dosimetry
1.5 This practice applies provided the following conditions
system should be calibrated for the required range of irradiation tempera-
are satisfied:
tures.
1.5.1 The absorbed dose range is between 10 Gy and 2 MGy
1.6 This standard does not purport to address all of the
for gamma radiation and between 10 Gy and 200 kGy for high
2 safety concerns, if any, associated with its use. It is the
current electron accelerators (1, 2). (Warning—the boiling
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
This practice is under the jurisdiction of ASTM Committee E61 on Radiation
bility of regulatory limitations prior to use. Specific warnings
Processing and is the direct responsibility of Subcommittee E61.02 on Dosimetry
are given in 1.5.1, 9.2 and 10.2.
Systems, and is also under the jurisdiction of ISO/TC 85/WG 3.
1.7 This international standard was developed in accor-
Current edition approved April 25, 2017. Published June 2017. Originally
dance with internationally recognized principles on standard-
published as ASTM E1538-93. Last previous ASTM edition E1538–99. ASTM
E1538–93 was adopted by ISO in 1998 with the intermediate designation ISO
ization established in the Decision on Principles for the
15563:1998(E). The present International Standard ISO/ASTM 51538:2017 (E) is a
Development of International Standards, Guides and Recom-
major revision of ISO/ASTM 51538:2009(E). DOI:10.1520/ISOASTM51538-17.
mendations issued by the World Trade Organization Technical
The boldface numbers in parentheses refer to the bibliography at the end of this
practice. Barriers to Trade (TBT) Committee.
© ISO/ASTM International 2017 – All rights reserved
2. Referenced documents 2.6 International Commission on Radiation Units and Mea-
surements (ICRU) Reports:
2.1 ASTM Standards:
ICRU Report 35 Radiation Dosimetry: Electrons with Initial
C912 Practice for Designing a Process for Cleaning Techni-
Energies Between 1 and 50 MeV
cal Glasses
ICRU Report 80 Dosimetry Systems for Use in Radiation
D1193 Specification for Reagent Water
Processing
E170 Terminology Relating to Radiation Measurements and
ICRU Report 85a Fundamental Quantities and Units for
Dosimetry
Ionizing Radiation
E275 Practice for Describing and Measuring Performance of
Ultraviolet and Visible Spectrophotometers
3. Terminology
E666 Practice for Calculating Absorbed Dose From Gamma
3.1 Definitions:
or X Radiation
3.1.1 approved laboratory—laboratory that is a recognized
E668 Practice for Application of Thermoluminescence-
national metrology institute, or has been formally accredited to
Dosimetry (TLD) Systems for Determining Absorbed
ISO/IEC 17025, or has a quality system consistent with the
Dose in Radiation-Hardness Testing of Electronic Devices
requirements of ISO/IEC 17025.
E925 Practice for Monitoring the Calibration of Ultraviolet-
3.1.1.1 Discussion—A recognized national metrology insti-
Visible Spectrophotometers whose Spectral Bandwidth tute or other calibration laboratory accredited to ISO/IEC
17025 should be used in order to ensure traceability to a
does not Exceed 2 nm
national or international standard. A calibration certificate
E958 Practice for Estimation of the Spectral Bandwidth of
provided by a laboratory not having formal recognition or
Ultraviolet-Visible Spectrophotometers
accreditation will not necessarily be proof of traceability to a
2.2 ISO/ASTM Standards:
national or international standard.
51261 Practice for Calibration of Routine Dosimetry Sys-
3.1.2 calibration—set of operations that establish, under
tems for Radiation Processing
specified conditions, the relationship between values indicated
51707 Guide for Estimation of Measurement Uncertainty in
by a measuring instrument or measuring system, or values
Dosimetry for Radiation Processing
represented by a material measure or a reference material, and
52628 Practice for Dosimetry in Radiation Processing
the corresponding values realised by standards.
52701 Guide for Performance Characterization of Dosim-
3.1.2.1 Discussion—Calibration conditions include environ-
eters and Dosimetry Systems for Use in Radiation Pro-
mental and irradiation conditions present during irradiation,
cessing
storage and measurement of the dosimeters that are used for the
2.3 ISO Standards: generation of a calibration curve.
12749-4 Nuclear energy – Vocabulary – Pa
...
INTERNATIONAL ISO/ASTM
STANDARD 51538
Third edition
2017-09
Practice for use of the ethanol-
chlorobenzene dosimetry system
Pratique de l'utilisation d'un système dosimétrique à l'éthanol
chlorobenzène
Reference number
©
ISO/ASTM International 2017
© ISO/ASTM International 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester. In the United States, such requests should be sent to ASTM International.
ISO copyright office ASTM International
Ch. de Blandonnet 8 • CP 401 100 Barr Harbor Drive, PO Box C700
CH-1214 Vernier, Geneva, Switzerland West Conshohocken, PA 19428-2959, USA
Tel. +41 22 749 01 11 Tel. +610 832 9634
Fax +41 22 749 09 47 Fax +610 832 9635
copyright@iso.org khooper@astm.org
www.iso.org www.astm.org
ii © ISO/ASTM International 2017 – All rights reserved
Contents Page
1 Scope. 1
2 Referenced documents. 2
3 Terminology. 2
4 Significance and use. 3
5 Effect of Influence Quantities. 3
6 Interferences. 4
7 Apparatus. 4
8 Reagents. 4
9 Preparation of dosimeters. 4
10 Calibration of the mercuric nitrate solution. 5
11 Calibration of the dosimetry system. 5
12 Application of dosimetry system. 6
13 Minimum documentation requirements. 6
14 Measurement Uncertainty. 6
15 Keywords. 6
Annexes. 7
Table 1 Radiationchemicalyields(G)fortheformationofHClintypicalECBsolutionformulations. 3
−1
Table 2 Temperature coefficients k (°C) for typical ECB solution formulations as derived from
Ref (17). 4
Table A3.1 Characteristics of some applicable methods. 10
© ISO/ASTM International 2017 – All rights reserved iii
Foreword
ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of
ISO documents should be noted. International Standards are drafted in accordance with the editorial rules of
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ASTM International is one of the world’s largest voluntary standards development organizations with global
participation from affected stakeholders. ASTM technical committees follow rigorous due process balloting
procedures.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO and ASTM International shall be held responsible for identifying any or all such patent rights.
DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO’s adherence to the World trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/
iso/foreword.html.
This document was prepared by ASTM Committee E61 Radiation Processing and by Technical Committee
ISO/TC 85, nuclear energy, nuclear technologies and radiological protection.
This third edition cancels and replaces the second edition (ISO/ASTM 51538:2009), which has been
technically revised.
iv © ISO/ASTM International 2017 – All rights reserved
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.
Standard Practice for
Use of the Ethanol-Chlorobenzene Dosimetry System
This standard is issued under the fixed designation ISO/ASTM 51538; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision.
1. Scope point of ethanol chlorobenzene solutions is approximately
80 °C. Ampoules may explode if the temperature during
1.1 This practice covers the preparation, handling, testing,
irradiation exceeds the boiling point. This boiling point may be
and procedure for using the ethanol-chlorobenzene (ECB)
exceeded if an absorbed dose greater than 200 kGy is given in
dosimetry system to measure absorbed dose to water when
a short period of time.)
exposed to ionizing radiation. The system consists of a
6 −1
1.5.2 The absorbed-dose rate is less than 10 Gy s (2).
dosimeter and appropriate analytical instrumentation. For
1.5.3 For radionuclide gamma-ray sources, the initial pho-
simplicity, the system will be referred to as the ECB system.
ton energy is greater than 0.6 MeV. For bremsstrahlung
The ECB dosimeter is classified as a type I dosimeter on the
photons, the energy of the electrons used to produce the
basis of the effect of influence quantities. The ECB dosimetry
bremsstrahlung photons is equal to or greater than 2 MeV. For
system may be used as a reference standard dosimetry system
electron beams, the initial electron energy is greater than 8
or as a routine dosimetry system.
MeV (3).
1.2 This document is one of a set of standards that provides
NOTE 1—The same response relative to Co gamma radiation was
recommendations for properly implementing dosimetry in
obtained in high-power bremsstrahlung irradiation produced bya5MeV
radiation processing, and describes a means of achieving
electron accelerator (4).
compliance with the requirements of ISO/ASTM Practice
NOTE 2—The lower energy limits are appropriate for a cylindrical
52628 for the ECB system. It is intended to be read in dosimeter ampoule of 12-mm diameter. Corrections for dose gradients
across the ampoule may be required for electron beams. The ECB system
conjunction with ISO/ASTM Practice 52628.
may be used at lower energies by employing thinner (in the beam
1.3 This practice describes the mercurimetric titration
direction) dosimeters (see ICRU Report 35). The ECB system may also be
used at X-ray energies as low as 120 kVp (5). However, in this range of
analysis as a standard readout procedure for the ECB dosimeter
photon energies the effect caused by the ampoule wall is considerable.
when used as a reference standard dosimetry system. Other
NOTE 3—The effects of size and shape of the dosimeter on the response
readout methods (spectrophotometric, oscillometric) that are
of the dosimeter can adequately be taken into account by performing the
applicable when the ECB system is used as a routine dosimetry
appropriate calculations using cavity theory (6).
system are described in Annex A1 and Annex A2.
1.5.4 The irradiation temperature of the dosimeter is within
1.4 This practice applies only to gamma radiation,
the range from −30 °C to 80 °C.
X-radiation/bremsstrahlung, and high energy electrons.
NOTE 4—The temperature dependence of dosimeter response is known
only in this range (see 5.2). For use outside this range, the dosimetry
1.5 This practice applies provided the following conditions
system should be calibrated for the required range of irradiation tempera-
are satisfied:
tures.
1.5.1 The absorbed dose range is between 10 Gy and 2 MGy
1.6 This standard does not purport to address all of the
for gamma radiation and between 10 Gy and 200 kGy for high
2 safety concerns, if any, associated with its use. It is the
current electron accelerators (1, 2). (Warning—the boiling
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
This practice is under the jurisdiction of ASTM Committee E61 on Radiation
bility of regulatory limitations prior to use. Specific warnings
Processing and is the direct responsibility of Subcommittee E61.02 on Dosimetry
are given in 1.5.1, 9.2 and 10.2.
Systems, and is also under the jurisdiction of ISO/TC 85/WG 3.
1.7 This international standard was developed in accor-
Current edition approved April 25, 2017. Published June 2017. Originally
dance with internationally recognized principles on standard-
published as ASTM E1538-93. Last previous ASTM edition E1538–99. ASTM
E1538–93 was adopted by ISO in 1998 with the intermediate designation ISO
ization established in the Decision on Principles for the
15563:1998(E). The present International Standard ISO/ASTM 51538:2017 (E) is a
Development of International Standards, Guides and Recom-
major revision of ISO/ASTM 51538:2009(E). DOI:10.1520/ISOASTM51538-17.
mendations issued by the World Trade Organization Technical
The boldface numbers in parentheses refer to the bibliography at the end of this
practice. Barriers to Trade (TBT) Committee.
© ISO/ASTM International 2017 – All rights reserved
2. Referenced documents 2.6 International Commission on Radiation Units and Mea-
surements (ICRU) Reports:
2.1 ASTM Standards:
ICRU Report 35 Radiation Dosimetry: Electrons with Initial
C912 Practice for Designing a Process for Cleaning Techni-
Energies Between 1 and 50 MeV
cal Glasses
ICRU Report 80 Dosimetry Systems for Use in Radiation
D1193 Specification for Reagent Water
Processing
E170 Terminology Relating to Radiation Measurements and
ICRU Report 85a Fundamental Quantities and Units for
Dosimetry
Ionizing Radiation
E275 Practice for Describing and Measuring Performance of
Ultraviolet and Visible Spectrophotometers
3. Terminology
E666 Practice for Calculating Absorbed Dose From Gamma
3.1 Definitions:
or X Radiation
3.1.1 approved laboratory—laboratory that is a recognized
E668 Practice for Application of Thermoluminescence-
national metrology institute, or has been formally accredited to
Dosimetry (TLD) Systems for Determining Absorbed
ISO/IEC 17025, or has a quality system consistent with the
Dose in Radiation-Hardness Testing of Electronic Devices
requirements of ISO/IEC 17025.
E925 Practice for Monitoring the Calibration of Ultraviolet-
3.1.1.1 Discussion—A recognized national metrology insti-
Visible Spectrophotometers whose Spectral Bandwidth tute or other calibration laboratory accredited to ISO/IEC
17025 should be used in order to ensure traceability to a
does not Exceed 2 nm
national or international standard. A calibration certificate
E958 Practice for Estimation of the Spectral Bandwidth of
provided by a laboratory not having formal recognition or
Ultraviolet-Visible Spectrophotometers
accreditation will not necessarily be proof of traceability to a
2.2 ISO/ASTM Standards:
national or international standard.
51261 Practice for Calibration of Routine Dosimetry Sys-
3.1.2 calibration—set of operations that establish, under
tems for Radiation Processing
specified conditions, the relationship between values indicated
51707 Guide for Estimation of Measurement Uncertainty in
by a measuring instrument or measuring system, or values
Dosimetry for Radiation Processing
represented by a material measure or a reference material, and
52628 Practice for Dosimetry in Radiation Processing
the corresponding values realised by standards.
52701 Guide for Performance Characterization of Dosim-
3.1.2.1 Discussion—Calibration conditions include environ-
eters and Dosimetry Systems for Use in Radiation Pro-
mental and irradiation conditions present during irradiation,
cessing
storage and measurement of the dosimeters that are used for the
2.3 ISO Standards: generation of a calibration curve.
12749-4 Nuclear energy – Vocabulary – Pa
...
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