ASTM C996-15

Standard Specification for Uranium Hexafluoride Enriched to Less Than 5 % ²³⁵U

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.

General Information

• Status: Historical
• Publication Date: 30-Jun-2015
• ICS: 27.120.30 - Fissile materials and nuclear fuel technology
• Technical Committee: C26 - Nuclear Fuel Cycle
• Drafting Committee: C26.02 - Fuel and Fertile Material Specifications

Relations

• Replaces: ASTM C996-10 - Standard Specification for Uranium Hexafluoride Enriched to Less Than 5 % ²³⁵U
• Effective Date: 01-Jul-2015
• Replaced By: ASTM C996-20 - Standard Specification for Uranium Hexafluoride Enriched to Less Than 5&#x2009;%&#x2009;<sup > 235</sup>U
• Effective Date: 01-Mar-2020
• Referred By: ASTM C1672-17 - Standard Test Method for Determination of Uranium or Plutonium Isotopic Composition or Concentration by the Total Evaporation Method Using a Thermal Ionization Mass Spectrometer
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1913-21 - Standard Practice for Sampling Gaseous Uranium Hexafluoride Using Zeolite in Single-Use Destructive Assay Sampler
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1346-19 - Standard Practice for Dissolution of UF<inf>6</inf> from P-10 Tubes
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1428-18(2023) - Standard Test Method for Isotopic Analysis of Uranium Hexafluoride by Single–Standard Gas Source Multiple Collector Mass Spectrometer Method
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1052-20 - Standard Practice for Bulk Sampling of Liquid Uranium Hexafluoride
• Effective Date: 01-Jul-2015
• Referred By: ASTM C787-20 - Standard Specification for Uranium Hexafluoride for Enrichment
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1287-18 - Standard Test Method for Determination of Impurities in Nuclear Grade Uranium Compounds by Inductively Coupled Plasma Mass Spectrometry
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1771-19 - Standard Test Method for Determination of Boron, Silicon, and Technetium in Hydrolyzed Uranium Hexafluoride by Inductively Coupled Plasma&#x2014;Mass Spectrometer After Removal of Uranium by Solid Phase Extraction
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1838-16(2021) - Standard Practice for Cleaning for 1S and 2S Bottles
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1880-19 - Standard Practice for Sampling Gaseous Uranium Hexafluoride using Alumina Pellets
• Effective Date: 01-Jul-2015
• Referred By: ASTM C1647-20 - Standard Practice for Removal of Uranium or Plutonium, or both, for Impurity Assay in Uranium or Plutonium Materials
• Effective Date: 01-Jul-2015
• Referred By: ASTM C753-16a(2021) - Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder
• Effective Date: 01-Jul-2015
• Referred By: ASTM C761-18 - Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride
• Effective Date: 01-Jul-2015

Standards Content (Sample)

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:C996 −15
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 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/ASME Standards:
protect the work force, process equipment, and the environ-
ASMENQA-1QualityAssuranceRequirementsforNuclear
ment.
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 [e-mail]. 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.,
CurrenteditionapprovedJuly1,2015.PublishedJuly2015.Originallyapproved 4th Floor, New York, NY 10036.
4
in 1983. Last previous edition approved in 2010 as C996–10. DOI: 10.1520/ AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
C0996-15. 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
1

---------------------- Page: 1 ----------------------
C996−15
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
fluoride, air, or other volatile components that might cause
port USEC-651, latest revision
overpressure when heating the shipping container, such as to
3. Terminology
obtain a liquid sample or withdraw the contents.
4.2.1 If the temperature differs from 20°C or 35°C, a
3.1 Definitions of Terms Specific to This Standard:
t
...

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 − 10 C996 − 15
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, 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
be expected if Reprocessed UF is to be enriched without dilution with Commercial Natural UF . For such UF , special provisions,
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).
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
C1703 Practice for Sampling of Gaseous Uranium Hexafluoride
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
3
2.2 ANSIANSI/ASME Standards:
ANSI/ASMEASME 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
4
Clarke, H. K., Handbook of Nuclear Safety, DOE Report DP-532
4
Code of Federal Regulations, Title 10, Part 50, (Appendix B)
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 Oct. 1, 2010July 1, 2015. Published October 2010July 2015. Originally approved in 1983. Last previous edition approved in 20042010 as
C996 – 04C996 – 10.E01. DOI: 10.1520/C0996-10.10.1520/C0996-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
1

---------------------- Page: 1 ----------------------
C996 − 15
2.4 Other Document:
The UF Manual: Good Handling Practices for Uranium Hexafluoride, United States Enrichment Corporation Report
6
5
USEC-651, late
...