ASTM C922-00
Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets

Standard No.

ASTM C922-00

Release Date

2000

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM C922-08

Latest

ASTM C922-21

Scope

1.1 This specification is for finished sintered gadolinium oxide-uranium dioxide pellets for use in light-water reactors. It applies to gadolinium oxide-uranium dioxide pellets containing uranium of any ²³⁵U concentration and any concentration of gadolinium oxide.

1.2 This specification recognizes the presence of reprocessed uranium in the fuel cycle and consequently defines isotopic limits for gadolinium oxide-uranium dioxide pellets made from commercial grade UO₂. Such commercial grade UO₂ is defined so that, regarding fuel design and manufacture, the product is essentially equivalent to that made from unreprocessed uranium. UO₂ falling outside these limits cannot necessarily be regarded as equivalent and may thus need special provisions at the fuel fabrication plant or in the fuel design.

1.3 This specification does not include (1) provisions for preventing criticality accidents or (2) requirements for health and safety. Observance of this specification does not relieve the user of the obligation to be aware of and conform to all international, federal, state, and local regulations on possessing, shipping, processing, or using source or special nuclear material. Examples of U.S. Governmental documents are Code of Federal Regulations (Latest Edition), Title 10, Part 50, Title 10, Part 71, and Title 49, Part 173.

1.4 The following precautionary 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 and health practices and determine the applicability of regulatory limitations prior to use.

ASTM C922-00 Referenced Document

• ASTM C1233 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
• ASTM C696 Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Uranium Dioxide Powders and Pellets
• ASTM C753 Standard Specification for Nuclear-Grade, Sinterable Uranium Dioxide Powder
• ASTM C859 Standard Terminology Relating to Nuclear Materials
• ASTM C888 Standard Specification for Nuclear-Grade Gadolinium Oxide (Gd₂O₃) Powder
• ASTM C968 Standard Test Methods for Analysis of Sintered Gadolinium Oxide-Uranium Dioxide Pellets
• ASTM C996 Standard Specification for Uranium Hexafluoride Enriched to Less Than 5% 235U1
• ASTM E105 Standard Practice for Probability Sampling Of Materials

ASTM C922-00 history

• 2021 ASTM C922-21 Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets for Light Water Reactors
• 2014 ASTM C922-14 Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets
• 2008 ASTM C922-08 Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets
• 2000 ASTM C922-00 Standard Specification for Sintered Gadolinium Oxide-Uranium Dioxide Pellets