核临界安全性.应急准备状态和响应

[中文适用范围]： 本国际标准提供了应急准备和响应的标准，以尽量减少核临界事故造成的后果。 运行的临界安全性根据 ISO 1709 进行评估。 本国际标准适用于具有一个或多个可能含有大量和高浓度裂变材料的设施的场所。 本国际标准需要应用的程度取决于现场设施所呈现的总体临界风险。 本国际标准不适用于含有裂变材料的包装件的场外运输和过境储存。 本国际标准不适用于正在运行的核电站或具有已获得临界或接近临界许可的研究堆的设施，前提是反应堆外部不存在存在可信临界事故风险的裂变材料操作存在。 如果得到现场管理和许可机构的支持，本国际标准可以在特定情况下应用于此类现场和设施。 [外文原描述]： ISO 11320:2011 provides criteria for emergency preparedness and response to minimize consequences due to a nuclear criticality accident. The criticality safety of operations are evaluated in accordance with ISO 1709. ISO 11320:2011 applies to a site with one or more facilities which might contain significant quantities and concentrations of fissile material. The extent to which ISO 11320:2011 needs to be applied depends on the overall criticality risk presented by the facilities at the site. ISO 11320:2011 does not apply to off-site transport and transit storage of packages with fissile material. ISO 11320:2011 does not apply to sites with operating nuclear power plants or to facilities with research reactors which are licensed to become critical or near-critical, provided that there are no operations with fissile material external to the reactor for which a credible criticality accident risk exists. ISO 11320:2011 can be applied to such sites and facilities in specific cases, if supported by site management and by licensing authorities.