ASTM C996-10
(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 the standard. The values given in parentheses are for information only.
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Designation:C996 −10
StandardSpecification 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 2. Referenced Documents
2
1.1 This specification covers nuclear grade uranium
2.1 ASTM Standards:
hexafluoride (UF ) that either has been processed through an
6 C761Test Methods for Chemical, Mass Spectrometric,
enrichment plant, or has been produced by the blending of
Spectrochemical,Nuclear,andRadiochemicalAnalysisof
Highly Enriched Uranium with other uranium to obtain ura-
Uranium Hexafluoride
235
niumofany Uconcentrationbelow5%andthatisintended
C787Specification for Uranium Hexafluoride for Enrich-
for fuel fabrication. The objectives of this specification are
ment
twofold: (1) To define the impurity and uranium isotope limits
C859Terminology Relating to Nuclear Materials
for Enriched Commercial Grade UF so that, with respect to
6 C1052Practice for Bulk Sampling of Liquid Uranium
fuel design and manufacture, it is essentially equivalent to
Hexafluoride
enriched uranium made from natural UF ; and (2) To define
6 C1703 Practice for Sampling of Gaseous Uranium
limits for Enriched Reprocessed UF to be expected if Repro-
6 Hexafluoride
cessedUF istobeenrichedwithoutdilutionwithCommercial
6 E29Practice for Using Significant Digits in Test Data to
Natural UF . For such UF , special provisions, not defined
6 6 Determine Conformance with Specifications
herein, may be needed to ensure fuel performance and to
3
2.2 ANSI Standards:
protect the work force, process equipment, and the environ-
ANSI/ASME NQA-1Quality Assurance Requirements for
ment.
Nuclear Facility Applications
1.2 This specification is intended to provide the nuclear
ANSI N14.1Nuclear Materials—Uranium Hexafluoride—
industry with a standard for enriched UF that is to be used in
Packaging for Transport
6
the production of sinterable UO powder for fuel fabrication.
2
2.3 U.S. Government Documents:
In addition to this specification, the parties concerned may
Inspection, Weighing, and Sampling of Uranium Hexafluo-
agree to other appropriate conditions.
ride Cylinders, Procedure for Handling and Analysis of
1.3 The scope of this specification does not comprehen-
Uranium Hexafluoride, Vol. 1,DOE Report ORO-671-1,
4
sively cover all provisions for preventing criticality accidents
latest revision
or requirements for health and safety or for shipping. Obser-
Nuclear Safety Guide, U.S. NRC Report TID-7016,Rev. 2,
vance of this specification does not relieve the user of the
1978
obligation to conform to all applicable international, federal,
Clarke, H. K., Handbook of Nuclear Safety, DOE Report
state, and local regulations for processing, shipping, or in any
4
DP-532
otherwayusingUF (see,forexample,TID-7016,DP-532,and
6
Code of Federal Regulations, Title 10,Part 50, (Appendix
DOE O474.1).
4
B)
1.4 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
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 Oct. 1, 2010. Published October 2010. Originally 4th Floor, New York, NY 10036.
4
approved in 1983. Last previous edition approved in 2004 as C996–04E01. DOI: AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
10.1520/C0996-10. 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C996−10
2.4 Other Document:
50 kPa at 20°C (7 psia at 68°F), or
69 kPa at 35°C (10 psia at 95°F)
The UF Manual: Good Handling Practices for Uranium
6
Hexafluoride,United States Enrichment Corporation Re- The purpose of the pressure check is to limit the hydrogen
5
port USEC-651, latest revision fluoride, air, or other volatile components that might cause
overpressure when heating the shipping container, such as to
3. Terminology
obtain a liquid sample or withdraw the contents.
3.1 Definitions of Terms Specific to This Standard:
4.3 The total hydrocarbon, chlorocar
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:C996–04 Designation: C996 – 10
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
´ NOTE—The table in Section 5.5 was corrected editorially in September 2004
1. Scope
1.1 This specification covers nuclear grade uranium hexafluoride (UF ) that either has been processed through an enrichment
6
235
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) To 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) To define limits for Enriched Reprocessed UF to
6 6
beexpectedifReprocessedUF istobeenrichedwithoutdilutionwithCommercialNaturalUF .ForsuchUF ,specialprovisions,
6 6 6
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). , 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.
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
C1295Test Method for Gamma Energy Emission from Fission Products in Uranium Hexafluoride and Uranyl Nitrate Solution
C1561Guide for Determination of Plutonium and Neptunium in Uranium Hexafluoride by Alpha Spectrometry 1703 Practice
for Sampling of Gaseous Uranium Hexafluoride
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 ANSI Standards:
ANSI/ASME NQA-1 Quality Assurance Requirements for Nuclear Facility Applications
ANSI N14.1 Nuclear Materials—Uranium Hexafluoride—Packaging for Transport
2.3 U.S. Government Documents:
Inspection, Weighing, and Sampling of Uranium Hexafluoride Cylinders, Procedure for Handling and Analysis of Uranium
4
Hexafluoride, Vol. 1, DOE Report ORO-671-1, latest revision
Nuclear Safety Guide, U.S. NRC Report TID-7016, Rev. 2, 1978
1
This specification is under the jurisdiction ofASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.02 on Fuel and Fertile
Material Specifications.
Current edition approved JuneOct. 1, 2004.2010. Published July 2004.October 2010. Originally approved in 1983. Last previous edition approved in 19962004 as
C996–96.C996 – 04E01. DOI: 10.1520/C0996-04E01.10.1520/C0996-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
4
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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