ASTM C996-20
(Specification)Standard Specification for Uranium Hexafluoride Enriched to Less Than 5 % 235U
Standard Specification for Uranium Hexafluoride Enriched to Less Than 5 % <sup > 235</sup>U
ABSTRACT
This specification covers nuclear grade uranium hexafluoride (UF6) that has been processed through an enrichment plant or produced by blending highly enriched uranium with other uranium to produce a concentration suitable for nuclear fuel fabrication. This specification defines the impurity and uranium isotope limits for the enriched commercial grade UF6 and for enriched reprocessed UF6. All materials should conform to the specified chemical, physical, and isotopic requirements.
SCOPE
1.1 This specification covers nuclear grade uranium hexafluoride (UF6) that either has been processed through an enrichment plant or has been produced by the blending of Highly Enriched Uranium with other uranium to obtain uranium of any 235U concentration below 5 % and that is intended for fuel fabrication. The objectives of this specification are twofold: (1) to define the impurity and uranium isotope limits for Enriched Commercial Grade UF6 so that, with respect to fuel design and manufacture, it is essentially equivalent to enriched uranium made from natural UF6, and (2) to define limits for Enriched Reprocessed UF6 to be expected if Reprocessed UF6 is to be enriched without dilution with Commercial Natural UF6. For such UF6, special provisions, not defined herein, may be needed to ensure fuel performance and to protect the work force, process equipment, and the environment.
1.2 This specification is intended to provide the nuclear industry with a standard for enriched UF6 that is to be used in the production of sinterable UO2 powder for fuel fabrication. In addition to this specification, the parties concerned may agree to other appropriate conditions.
1.3 The scope of this specification does not comprehensively cover all provisions for preventing criticality accidents or requirements for health and safety or for shipping. Observance of this specification does not relieve the user of the obligation to conform to all applicable international, federal, state, and local regulations for processing, shipping, or in any other way using UF6 (see, for example, TID-7016, DP-532, and DOE O474.1).
1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.5 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:C996 −20
Standard Specification for
235 1
Uranium Hexafluoride Enriched to Less Than 5% U
This standard is issued under the fixed designation C996; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
1.1 This specification covers nuclear grade uranium
ization established in the Decision on Principles for the
hexafluoride (UF ) that either has been processed through an
6
Development of International Standards, Guides and Recom-
enrichment plant or has been produced by the blending of
mendations issued by the World Trade Organization Technical
Highly Enriched Uranium with other uranium to obtain ura-
235 Barriers to Trade (TBT) Committee.
niumofany Uconcentrationbelow5%andthatisintended
for fuel fabrication. The objectives of this specification are
2. Referenced Documents
twofold: (1) to define the impurity and uranium isotope limits
2
2.1 ASTM Standards:
for Enriched Commercial Grade UF so that, with respect to
6
C761Test Methods for Chemical, Mass Spectrometric,
fuel design and manufacture, it is essentially equivalent to
Spectrochemical,Nuclear,andRadiochemicalAnalysisof
enriched uranium made from natural UF , and (2) to define
6
Uranium Hexafluoride
limits for Enriched Reprocessed UF to be expected if Repro-
6
C787Specification for Uranium Hexafluoride for Enrich-
cessedUF istobeenrichedwithoutdilutionwithCommercial
6
ment
Natural UF . For such UF , special provisions, not defined
6 6
C859Terminology Relating to Nuclear Materials
herein, may be needed to ensure fuel performance and to
C1052Practice for Bulk Sampling of Liquid Uranium
protect the work force, process equipment, and the environ-
Hexafluoride
ment.
C1883Practice for Sampling of Gaseous Enriched Uranium
1.2 This specification is intended to provide the nuclear
Hexafluoride
industry with a standard for enriched UF that is to be used in
6
E29Practice for Using Significant Digits in Test Data to
the production of sinterable UO powder for fuel fabrication.
2
Determine Conformance with Specifications
In addition to this specification, the parties concerned may
3
2.2 ANSI/ASME Standards:
agree to other appropriate conditions.
ASMENQA-1QualityAssuranceRequirementsforNuclear
1.3 The scope of this specification does not comprehen-
Facility Applications
sively cover all provisions for preventing criticality accidents
ANSI N14.1Nuclear Materials—Uranium Hexafluoride—
or requirements for health and safety or for shipping. Obser-
Packaging for Transport
vance of this specification does not relieve the user of the 4
2.3 U.S. Government Documents:
obligation to conform to all applicable international, federal,
ORO-671-1Inspection, Weighing, and Sampling of Ura-
state, and local regulations for processing, shipping, or in any
niumHexafluorideCylinders,ProcedureforHandlingand
otherwayusingUF (see,forexample,TID-7016,DP-532,and
6
Analysis of Uranium Hexafluoride, Vol 1, latest revision
DOE O474.1).
TID-7016Nuclear Safety Guide, Rev. 2
1.4 The values stated in SI units are to be regarded as
DP-532Handbook of Nuclear Safety
standard. The values given in parentheses after SI units are
providedforinformationonlyandarenotconsideredstandard.
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
1
This specification is under the jurisdiction of ASTM Committee C26 on Standards volume information, refer to the standard’s Document Summary page on
NuclearFuelCycleandisthedirectresponsibilityofSubcommitteeC26.02onFuel the ASTM website.
3
and Fertile Material Specifications. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved March 1, 2020. Published April 2020. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
4
approved in 1983. Last previous edition approved in 2015 as C996–15. DOI: AvailablefromU.S.GovernmentAccountabilityOffice(GAO),441GSt.,NW,
10.1520/C0996-20. Washington, DC 20548, http://www.gao.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C996−20
10 CFR 50Code of Federal Regulations, Title 10, Part 50,
380 kPa at 80 °C (55 psia at 176 °F), or
517 kPa at 93 °C (75 psia at 200 °F), or
(Appendix B)
862 kPa at 11
...
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: C996 − 15 C996 − 20
Standard Specification for
235 1
Uranium Hexafluoride Enriched to Less Than 5 % U
This standard is issued under the fixed designation C996; 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
1.1 This specification covers nuclear grade uranium hexafluoride (UF ) that either has been processed through an enrichment
6
235
plant,plant or has been produced by the blending of Highly Enriched Uranium with other uranium to obtain uranium of any U
concentration below 5 % and that is intended for fuel fabrication. The objectives of this specification are twofold: (1) Toto define
the impurity and uranium isotope limits for Enriched Commercial Grade UF so that, with respect to fuel design and manufacture,
6
it is essentially equivalent to enriched uranium made from natural UF ;, and (2) Toto define limits for Enriched Reprocessed UF
6 6
to be expected if Reprocessed UF is to be enriched without dilution with Commercial Natural UF . For such UF , special
6 6 6
provisions, not defined herein, may be needed to ensure fuel performance and to protect the work force, process equipment, and
the environment.
1.2 This specification is intended to provide the nuclear industry with a standard for enriched UF that is to be used in the
6
production of sinterable UO powder for fuel fabrication. In addition to this specification, the parties concerned may agree to other
2
appropriate conditions.
1.3 The scope of this specification does not comprehensively cover all provisions for preventing criticality accidents or
requirements for health and safety or for shipping. Observance of this specification does not relieve the user of the obligation to
conform to all applicable international, federal, state, and local regulations for processing, shipping, or in any other way using UF
6
(see, for example, TID-7016, DP-532, and DOE O474.1).
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.after
SI units are provided for information only and are not considered standard.
1.5 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:
C761 Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium
Hexafluoride
C787 Specification for Uranium Hexafluoride for Enrichment
C859 Terminology Relating to Nuclear Materials
C1052 Practice for Bulk Sampling of Liquid Uranium Hexafluoride
C1703C1883 Practice for Sampling of Gaseous Enriched Uranium Hexafluoride for Enrichment
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 ANSI/ASME Standards:
ASME NQA-1 Quality Assurance Requirements for Nuclear Facility Applications
ANSI N14.1 Nuclear Materials—Uranium Hexafluoride—Packaging for Transport
1
This specification is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.02 on Fuel and Fertile
Material Specifications.
Current edition approved July 1, 2015March 1, 2020. Published July 2015April 2020. Originally approved in 1983. Last previous edition approved in 20102015 as
C996 – 10.C996 – 15. DOI: 10.1520/C0996-15.10.1520/C0996-20.
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.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.10036, http://www.ansi.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C996 − 20
4
2.3 U.S. Government Documents:
Inspection, Weighing, and Sampling of Uranium Hexafluoride Cylinders, Procedure for Handling and Analysis of Uranium
Hexafluoride, Vol. 1,ORO-671-1 DOE Report ORO-671-1, Inspection, Weighing, and S
...
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