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ASTM C787-20

Current Revision

Standard Specification for Uranium Hexafluoride for Enrichment

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1.1 This specification covers uranium hexafluoride (UF6) intended for feeding to an enrichment plant. Included are specifications for UF6 derived from unirradiated natural uranium and UF6 derived from irradiated uranium that has been reprocessed and converted to UF6 for enrichment and subsequent reuse. The objectives of this specification are twofold: (1) to define the impurity and uranium isotope limits for Commercial Natural UF6 feedstock, and (2) to define additional limits for Reprocessed UF6 (or any mixture of Reprocessed UF6 and Commercial Natural UF6). For such UF6, special provisions may be needed to ensure that no extra hazard arises to the work force, process equipment, or the environment.

1.2 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 international, federal, state, and local regulations for processing, shipping, or in any other way using UF6 (for example, see TID-7016, DP-532, ORNL-NUREG-CSD-6, and DOE O 474.1).

1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.4 This 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.


This specification covers uranium hexafluoride intended for feeding to an enrichment plant. Plants preparing uranium hexafluoride will have to control the purity of process chemicals and also employ low corrosion equipment to be successful in meeting the specifications for most impurities. Chemical and isotopic analysis of the material shall conform to the requirements prescribed.


SDO ASTM: ASTM International
Document Number C787
Publication Date March 1, 2020
Language en - English
Page Count 4
Revision Level 20
Supercedes
Committee C26.02
Publish Date Document Id Type View
March 1, 2020 C0787-20 Revision
July 1, 2015 C0787-15 Revision
June 1, 2011 C0787-11 Revision
Jan. 1, 2006 C0787-06 Revision
June 10, 2003 C0787-03E02 Revision
June 10, 2003 C0787-03E01 Revision
Jan. 1, 1996 C0787-96 Revision