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ANSI/ANS-8.12-1987;R1993;R2002;R2011;R2016: Nuclear Criticality Control and Safety of Plutonium-Uranium Fuel Mixtures Outside Reactors

Current Standard, Revision of ANSI/ANS-8.12-1978

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Item ID: 240163


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"R" in the numeric designation signifies that the 1987 standard was reaffirmed (recertified) as an American National Standard in 1987, 1993, 2002, 2011 & 2016. No changes can be made to a standard during reaffirmation.

This standard is applicable to operations with plutonium-uranium oxide fuel mixtures outside nuclear reactors, except the assembly of these materials under controlled conditions, such as in critical experiments. Basic criteria are presented for plutonium-uranium fuel mixtures in single units of simple shape containing no more than 30 wt% plutonium combined with uranium containing no more than 0.71 wt% 235U.

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