ANSI/ANS 8.12-1987 反应堆外部钚铀混合燃料的核临界控制和安全

标准号：ANSI/ANS 8.12-1987
中文标准名称：反应堆外部钚铀混合燃料的核临界控制和安全
英文标准名称：Plutonium-Uranium Fuel Mixtures Outside Reactors, Nuclear Criticality Control and Safety of
标准类型：F09
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：F09
国际标准分类号：27.120.20
适用范围：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.