ASTM C996-15

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: 1.2 This specification is intended to provide the nuclear industry with a standard for enriched UF_{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.