American National Standard
American National Standard

Author: American Nuclear Society. Standards Committee Working Group ANS-8.7

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ANS 8.7-1998 (R2017) is applicable to the storage of fissile materials. Mass and spacing limits are tabulated for uranium containing greater than 30 wt-% 235U, for 233U, and for plutonium, as metals and oxides. Criteria for the range of application of these limits are provided.

Applications of the ANSI/ANS Standard on the Storage of Fissile Materials
Applications of the ANSI/ANS Standard on the Storage of Fissile Materials

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Published: 1985

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The American National Standard ''Guide for Nuclear Criticality Safety in the Storage of Fissile Materials, '' ANSI/N16.5-1975 is the subject of this paper. The Guide was reaffirmed in 1982. The technical bases for the conditions and requirements are discussed. Suggestions for applications and several general problems addressed by the Guide are presented. The development of information needed for future extensions of the area of applicability is given.

American National Standard
American National Standard

Author: American Nuclear Society. Standards Committee Working Group ANS-8.9

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This Guide is applicable only to the storage and processing of homogeneous aqueous solutions of uranyl nitrate containing the 235U isotope in intersecting pipe geometries. Specific data for U993.5) 7 are presented, and no consideration is given to mixtures containing the other fissionable materials. This Guide does not include specific chemical and mechanical technology, information on fluid dynamics, or other engineering fundamentals also required in safe design of process equipment.