核能.贮存.装卸和加工易裂变材料的临界安全原则

[中文适用范围]： 本文件规定了裂变材料作业的基本原则和限制。 它讨论了设备设计和运行控制开发的一般核临界安全标准，同时为程序、设备和运行的评估提供指导。 它不涵盖特定的质量保证要求或设备或操作程序的细节。 本文件不涉及与核临界安全相关管理标准相关的问题。 ISO 14943 涵盖了这些问题。 它不涵盖辐射对人或材料的影响，除非材料特性影响核临界安全。 这些标准适用于核反应堆之外但核设施范围内的裂变材料作业。 他们担心由于这些材料的特性允许它们支持核链式反应而对操作施加的限制。 这些原则适用于需要建立核临界安全的裂变核素的数量。 本文件还可适用于核设施边界外裂变材料的运输。 [外文原描述]： ISO 1709:2018 specifies the basic principles and limitations which govern operations with fissile materials. It discusses general nuclear criticality safety criteria for equipment design and for the development of operating controls, while providing guidance for the assessment of procedures, equipment, and operations. It does not cover specific quality assurance requirements or details of equipment or operational procedures. ISO 1709:2018 does not deal with the issues associated with administrative criteria relating to nuclear criticality safety. These issues are covered by ISO 14943. It does not cover the effects of radiation on man or materials, unless the material properties affect nuclear criticality safety. These criteria apply to operations with fissile materials outside nuclear reactors but within the boundaries of nuclear establishments. They are concerned with the limitations which are imposed on operations because of the properties of these materials which permit them to support nuclear chain reactions. These principles apply to quantities of fissile nuclides in which nuclear criticality safety is required to be established. ISO 1709:2018 can also be applied to the transport of fissile materials outside the boundaries of nuclear establishments.