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ASTM C787-96

ASTM C787-96

Standard Specification for Uranium Hexafluoride for Enrichment

2017-08-16 /Historical
Superseeded by:

1.1 This specification applies to uranium hexafluoride containing uranium of 235 U concentration not exceeding 5% 235 U intended for feed to an enrichment plant. This specification includes specifications for natural uranium hexafluoride (UF6) and UF6 that has been derived from irradiated uranium which has been reprocessed, and converted to UF6 for enrichment and subsequent reuse. The objectives of this specification are twofold: ( ) To define the impurity and uranium isotope limits for commercial natural UF6 feedstock so that the corresponding enriched product is essentially equivalent to enriched product made entirely from virgin natural UF6 and ( ) To define additional limits for reprocessed UF6 (or any mixture of reprocessed and commercial natural). For such UF6, special provisions may need to be made to ensure that no extra hazard arises to the employees, process equipment, or the environment.

1.2 This specification does not comprehensively cover all provisions for preventing criticality accidents or requirements for health and safety or for shipping. Observance of this standard does not relieve the user of the obligation to conform to all international, federal, state, and local regulations for processing, shipping, or in any other way using UF6. (see, for example, TID-7016, DP-532, ORNL-NUREGCSD-6, and DOE 5633.3).

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are given for information only.

low enriched uranium; natural uranium; nuclear fuel; reprocessed uranium; uranium enrichment; uranium hexafluoride
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