標準號：ANSI/ANS 8.12-1987
中文標準名稱：反應堆外部钚鈾混合燃料的核臨界控制和安全
英文標準名稱：Plutonium-Uranium Fuel Mixtures Outside Reactors, Nuclear Criticality Control and Safety of
標準類型：F09
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：F09
國際標準分類號：27.120.20
適用范圍：Applies to operations with plutonium-uranium oxide fuel mixtures outside nuclear reactors, except the assembly of these materials under controlled conditions, such as 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. The limits for uniform aqueous mixtures (solution) are applicable to homogeneous mixtures and slurries in which the particles constituting the mixture are uniformly distributed and have a diameter no larger than 127 ?m (0.005 in.), i.e., are capable of being passed though 120 mesh screen.