ASTM C 833 : 2023 : REDLINE
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Standard Specification for Sintered (Uranium-Plutonium) Dioxide Pellets for Light Water Reactors
English
31-07-2023
1.1This specification covers finished sintered and ground (U, Pu)O2 pellets for use in light water reactors. It applies to (U, Pu)O2 pellets containing a plutonium mass fraction up to 15 % (that is, mass of Pu divided by the sum of masses U, Pu, and Am yielding 0.15 or less).
1.2Pellets produced under this specification are available in four grades.
1.2.1Grade R—240Pu / (Pu + Am) isotope mass fraction is at least 19 %.
1.2.2Grade F—240Pu / (Pu + Am) isotope mass fraction is at least 7 % and less than 19 %.
1.2.3Grade N1—240Pu / (Pu + Am) isotope mass fraction is less than 7 %.
1.2.4Grade N2—240Pu /239Pu isotope mass fraction does not exceed 0.10 (10 %).
1.3There 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 applicable international, federal, state, and local regulations pertaining to possessing, processing, shipping, or using source or special nuclear material. Examples of U.S. government documents are Code of Federal Regulations Title 10, Part 50—Domestic Licensing of Production and Utilization Facilities; Code of Federal Regulations Title 10, Part 71—Packaging and Transportation of Radioactive Material; and Code of Federal Regulations Title 49, Part 173—General Requirements for Shipments and Packaging.
1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5The following safety hazards caveat pertains only to the technical requirements portion, Section 4, of this specification: 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.
1.6This 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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