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ANSI/ANS-8.7-1998;R2007;R2012 (R = Reaffirmed): Nuclear Criticality Safety in the Storage of Fissile Materials

Current Standard, Revision of ANS-8.7-1975;R1982;R1987 (N16.5)

Item ID: 240235

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"R" in the numeric designation signifies that the 1998 standard was reaffirmed (recertified) as an American National Standard in 2007 and again in 2012.  No changes can be made to a standard during reaffirmation.

This standard 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.

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