ANSI/ANS-8.12-1987;R2002 (R=Reaffirmed): Nuclear Criticality Control and Safety of Plutonium-Uranium Fuel Mixtures Outside Reactors

"R" in the numeric designation signifies that the 1987 standard was reaffirmed (recertified) as an American National Standard in 2002.  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.