ASTM C1636-22
(Guide)Standard Guide for Determination of Uranium-232 in Uranium Hexafluoride
Standard Guide for Determination of Uranium-232 in Uranium Hexafluoride
SIGNIFICANCE AND USE
5.1 The guide is applicable to the analysis of materials to demonstrate compliance with the specifications set forth in Specifications C787 and C996. Some other specifications may be expressed in terms of mass of 232U per mass of only 238U (see ISO 21847–3:2007).
SCOPE
1.1 This guide covers the determination of 232U in uranium hexafluoride by alpha spectrometry.
1.2 The values stated in SI units are to be regarded as standard, except where the non-SI unit of molar, M, is used for the concentration of chemicals and reagents. The unit of electronvolt (eV) is outside the SI but its use with the SI is accepted by the International Committee for Weights and Measures (CIPM, Comité International des Poids et Mesures) and the U. S. National Institute of Science and Technology (NIST). 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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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.
Designation:C1636 −22
Standard Guide for
1
Determination of Uranium-232 in Uranium Hexafluoride
This standard is issued under the fixed designation C1636; 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 Alpha Spectrometry
232
C1429 Test Method for Isotopic Analysis of Uranium
1.1 This guide covers the determination of U in uranium
Hexafluoride by Double-Standard Multi-Collector Gas
hexafluoride by alpha spectrometry.
Mass Spectrometer
1.2 The values stated in SI units are to be regarded as
C1474 Test Method forAnalysis of Isotopic Composition of
standard, except where the non-SI unit of molar, M, is used for
Uranium in Nuclear-Grade Fuel Material by Quadrupole
the concentration of chemicals and reagents. The unit of
Inductively Coupled Plasma-Mass Spectrometry
electronvolt (eV) is outside the SI but its use with the SI is
C1477 Test Method for Isotopic Abundance Analysis of
accepted by the International Committee for Weights and
Uranium Hexafluoride and Uranyl Nitrate Solutions by
Measures (CIPM, Comité International des Poids et Mesures)
Multi-Collector, Inductively Coupled Plasma-Mass Spec-
and the U. S. National Institute of Science and Technology
trometry
(NIST). No other units of measurement are included in this
C1625 Test Method for Uranium and Plutonium Concentra-
standard.
tions and Isotopic Abundances by Thermal Ionization
1.3 This standard does not purport to address all of the Mass Spectrometry
safety concerns, if any, associated with its use. It is the
C1672 Test Method for Determination of Uranium or Pluto-
responsibility of the user of this standard to establish appro- nium Isotopic Composition or Concentration by the Total
priate safety, health, and environmental practices and deter-
Evaporation Method Using a Thermal Ionization Mass
mine the applicability of regulatory limitations prior to use. Spectrometer
1.4 This international standard was developed in accor-
C1832 Test Method for Determination of Uranium Isotopic
dance with internationally recognized principles on standard- Composition by Modified Total Evaporation (MTE)
ization established in the Decision on Principles for the
Method Using Thermal Ionization Mass Spectrometer
Development of International Standards, Guides and Recom- D1193 Specification for Reagent Water
mendations issued by the World Trade Organization Technical D3084 Practice for Alpha-Particle Spectrometry of Water
Barriers to Trade (TBT) Committee.
D3648 Practices for the Measurement of Radioactivity
2.2 Other Standards:
232
2. Referenced Documents
DIN 25711 Determination of the U isotopic content in
2
uranium containing nuclear fuel solutions by α spectrom-
2.1 ASTM Standards:
3
etry
C787 Specification for Uranium Hexafluoride for Enrich-
ISO 21847–3 Nuclear fuel technology—Alpha
ment
spectrometry—Part 3: Determination of uranium-232 in
C859 Terminology Relating to Nuclear Materials
4
uranium and its compounds
C996 Specification for Uranium Hexafluoride Enriched to
235
Less Than 5 % U
3. Terminology
C1163 Practice for MountingActinides forAlpha Spectrom-
3.1 Except as otherwise defined herein, definitions of terms
etry Using Neodymium Fluoride
are as given in Terminology C859.
C1284 Practice for Electrodeposition of the Actinides for
1
This guide is under the jurisdiction ofASTM Committee C26 on Nuclear Fuel
Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of Test.
Current edition approved Feb. 1, 2022. Published March 2022. Originally
approved in 2006. Last previous edition approved in 2013 as C1636 – 13. DOI:
10.1520/C1636-22.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Deutsches Institut für Normung e.V.(DIN), Am DIN-Platz,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Burggrafenstrasse 6, 10787 Berlin, Germany, http://www.din.de.
4
Standards volume information, refer to the standard’s Document Summary page on Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1636−22
3.2 Definitions: small amount of the overall uranium mass. Any bias between
3.2.1 region-of-interest (ROI)—the channels, or region, in the two should result in a relatively s
...
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: C1636 − 13 C1636 − 22
Standard Guide for the
1
Determination of Uranium-232 in Uranium Hexafluoride
This standard is issued under the fixed designation C1636; 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
232
1.1 This methodguide covers the determination of U in uranium hexafluoride by alpha spectrometry.
1.2 The values stated in SI units are to be regarded as standard. standard, except where the non-SI unit of molar, M, is used for
the concentration of chemicals and reagents. The unit of electronvolt (eV) is outside the SI but its use with the SI is accepted by
the International Committee for Weights and Measures (CIPM, Comité International des Poids et Mesures) and the U. S. National
Institute of Science and Technology (NIST). 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 safety, health, and healthenvironmental practices and to 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C787 Specification for Uranium Hexafluoride for Enrichment
C859 Terminology Relating to Nuclear Materials
235
C996 Specification for Uranium Hexafluoride Enriched to Less Than 5 % U
C1163 Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride
C1284 Practice for Electrodeposition of the Actinides for Alpha Spectrometry
C1429 Test Method for Isotopic Analysis of Uranium Hexafluoride by Double-Standard Multi-Collector Gas Mass Spectrometer
C1474 Test Method for Analysis of Isotopic Composition of Uranium in Nuclear-Grade Fuel Material by Quadrupole
Inductively Coupled Plasma-Mass Spectrometry
C1477 Test Method for Isotopic Abundance Analysis of Uranium Hexafluoride and Uranyl Nitrate Solutions by Multi-Collector,
Inductively Coupled Plasma-Mass Spectrometry
C1625 Test Method for Uranium and Plutonium Concentrations and Isotopic Abundances by Thermal Ionization Mass
Spectrometry
C1672 Test Method for Determination of Uranium or Plutonium Isotopic Composition or Concentration by the Total
Evaporation Method Using a Thermal Ionization Mass Spectrometer
C1832 Test Method for Determination of Uranium Isotopic Composition by Modified Total Evaporation (MTE) Method Using
Thermal Ionization Mass Spectrometer
1
This guide is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.05 on Methods of Test.
Current edition approved Jan. 1, 2013Feb. 1, 2022. Published January 2013March 2022. Originally approved in 2006. Last previous edition approved in 20062013 as
C1636 – 06a.C1636 – 13. DOI: 10.1520/C1636-13.10.1520/C1636-22.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C1636 − 22
D1193 Specification for Reagent Water
D3084 Practice for Alpha-Particle Spectrometry of Water
D3648 Practices for the Measurement of Radioactivity
2.2 Other StandardsStandards:
232
DIN 25711 Determination of the U isotopic content in uranium containing nuclear fuel solutions by α spectrometry.spec-
3
trometry
ISO 21847–3 Nuclear Fuel Technology—Alpha Spectrometry—Partfuel technology—Alpha spectrometry—Part 3: Determina-
4
tion of uranium-232 in uranium and its compounds.compounds
3. Terminology
3.1 Except as otherwise defined herein, definitions of terms are as given in Terminology C859.
3
Available from Deutsches Institut für Normung e.V., Berlin, Germany (www.din.de). e.V.(DIN), Am DIN-Platz, Burggrafenstrasse 6, 10787 Berlin, Germany,
...
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