ASTM C757-06
(Specification)Standard Specification for Nuclear-Grade Plutonium Dioxide Powder, Sinterable
Standard Specification for Nuclear-Grade Plutonium Dioxide Powder, Sinterable
ABSTRACT
This specification covers sinterable nuclear-grade plutonium dioxide powders obtained by the oxalate precipitation route, calcination, or any other equivalent process acceptable to the buyer. Included is plutonium dioxide of various isotopic compositions as normally prepared by in-reactor neutron irradiation of natural or slightly enriched uranium, or recycled plutonium mixed with uranium. The material shall conform to required chemical compositions of plutonium, uranium, americium, impurities (boron, cadmium, carbon, chlorine, chromium, fluorine, iron, gadolinium, nickel, nitride nitrogen, and thorium), equivalent boron, and gamma activity. Materials shall also adhere to physical property requirements as to cleanliness and workmanship, particle size, and surface area.
SCOPE
1.1 This specification covers nuclear grade plutonium dioxide, sinterable powder obtained by the oxalate precipitation route, calcined above 500C, or any other equivalent process acceptable to the buyer. Included is plutonium dioxide of various isotopic compositions as normally prepared by in-reactor neutron irradiation of natural or slightly enriched uranium or by in-reactor neutron irradiation of recycled plutonium mixed with uranium.
1.2 There is no discussion of or provision for preventing criticality incidents, nor are health and safety requirements, the avoidance of hazards, or shipping precautions and controls discussed. Observance of this specification does not relieve the user of the obligation to be aware of and conform to all national and local regulations on processing, shipping, or using source or special nuclear materials. For examples in the U.S. Government, relevant documents are Code of Federal Regulations, Title 10 Nuclear Safety Guide, U.S. Atomic Energy Commission Report TID-7016, and "Handbook of Nuclear Safety", H. K. Clark, U.S. Atomic Energy Commission Report, DP-532.
1.3 The PuO2 shall be produced by a qualified process and in accordance with a quality assurance program approved by the user.
1.4 The values stated in SI units are to be regarded as the standard.
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 and health practices and determine the applicability of regulatory limitations prior to use.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: C757 – 06
Standard Specification for
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Nuclear-Grade Plutonium Dioxide Powder, Sinterable
This standard is issued under the fixed designation C757; 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.
INTRODUCTION
This specification is intended to provide the nuclear industry with a general standard for sinterable
plutonium dioxide powder. It recognizes the diversity of manufacturing methods by which plutonium
dioxide powders are produced, and the many special requirements for chemical and physical
characterization that may be imposed by the end use of the powder in a specific reactor system. It is,
therefore, anticipated that the buyer may supplement this specification with more stringent or
additional requirements for specific applications.
1. Scope 1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This specification covers nuclear grade plutonium diox-
responsibility of the user of this standard to establish appro-
ide, sinterable powder obtained by the oxalate precipitation
priate safety and health practices and determine the applica-
route, calcined above 500°C, or any other equivalent process
bility of regulatory limitations prior to use.
acceptable to the buyer. Included is plutonium dioxide of
various isotopic compositions as normally prepared by in-
2. Referenced Documents
reactor neutron irradiation of natural or slightly enriched
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2.1 ASTM Standards:
uranium or by in-reactor neutron irradiation of recycled pluto-
C697 Test Methods for Chemical, Mass Spectrometric, and
nium mixed with uranium.
Spectrochemical Analysis of Nuclear-Grade Plutonium
1.2 There is no discussion of or provision for preventing
Dioxide Powders and Pellets
criticality incidents, nor are health and safety requirements, the
C1233 Practice for Determining Equivalent Boron Contents
avoidance of hazards, or shipping precautions and controls
of Nuclear Materials
discussed. Observance of this specification does not relieve the
C1295 Test Method for Gamma Energy Emission from
useroftheobligationtobeawareofandconformtoallnational
Fission Products in Uranium Hexafluoride and Uranyl
and local regulations on processing, shipping, or using source
Nitrate Solution
or special nuclear materials. For examples in the U.S. Govern-
2.2 ANSI Standard:
ment, relevant documents are Code of Federal Regulations,
ANSI/ASME NQA-1 Quality Assurance Requirements for
Title 10 Nuclear Safety Guide, U.S. Atomic Energy Commis-
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2
Nuclear Facility Applications
sion ReportTID-7016 , and “Handbook of Nuclear Safety”, H.
2 2.3 U.S. Government Documents:
K. Clark, U.S. Atomic Energy Commission Report, DP-532 .
Code of Federal Regulations, Title 10, Nuclear Safety
1.3 The PuO shall be produced by a qualified process and
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Guide, U.S. Atomic Energy Commission Report TID-
in accordance with a quality assurance program approved by
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7016
the user.
“Handbook of Nuclear Safety,” Clark, H. K., U.S. Atomic
1.4 The values stated in SI units are to be regarded as the
2
Energy Commission Report, DP-532
standard.
2.4 ISO Standard:
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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
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and Fertile Material Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved July 1, 2006. Published July 2006. Originally approved contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in 1974. Last previous edition approved in 2002 as C757 – 90 (2002). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0757-06. the ASTM website.
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Available from Superintendent of Documents, U.S. Government Printing Available from American National Standards Institute, 11 W. 42nd St., 13th
Office, Washington, DC 20402. Floor, New York, NY 10036.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C757 – 06
ISO 8300 Determination of Pu Content in Plutonium Diox- 5. Physical Properties
ide (PuO ) of Nuclear Grade Quality, Gravimetric
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5.1 Cleanliness and Workmanship—The PuO powder shall
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Method
be free of visible fragments of foreign matter.
5.2 Particle Size—All the PuO powder shall be capable of
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3. Isotopic Content
passinga100µmsieveand95 %ofthepowderbyweightshall
3.1 Concentrations and homogeneity ranges of the pluto-
be capable of passing a 44 µm sieve.
nium isotopes shall be as sp
...
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