1.1本规范涵盖核级二氧化钚、通过草酸盐沉淀法获得、在500℃以上煅烧的可烧结粉末或买方可接受的任何其他等效工艺。其中包括各种同位素成分的二氧化钚，通常由天然或微浓缩铀的反应堆内中子辐照或与铀混合的回收钚的反应堆内中子辐照制备。 1.2没有讨论或规定预防危急事件，也没有讨论健康和安全要求、避免危险或运输预防措施和控制。遵守本规范并不免除用户了解并遵守所有国家和地方有关加工、运输或使用源核材料或特殊核材料的规定的义务。 例如，美国政府的相关文件有《联邦法规》、第10篇《核安全指南》、美国原子能委员会报告TID-7016和“核安全手册”、H.K.Clark、美国原子能委员会报告DP-532。 1.3 PuO 2. 应采用合格工艺并按照用户批准的质量保证计划进行生产。 1.4以国际单位制表示的数值应视为标准。 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This specification covers nuclear grade plutonium dioxide, sinterable powder obtained by the oxalate precipitation route, calcined above 500C, or any other equivalent process acceptable to the buyer. Included is plutonium dioxide of various isotopic compositions as normally prepared by in-reactor neutron irradiation of natural or slightly enriched uranium or by in-reactor neutron irradiation of recycled plutonium mixed with uranium. 1.2 There is no discussion of or provision for preventing criticality incidents, nor are health and safety requirements, the avoidance of hazards, or shipping precautions and controls discussed. Observance of this specification does not relieve the user of the obligation to be aware of and conform to all national and local regulations on processing, shipping, or using source or special nuclear materials. For examples in the U.S. Government, relevant documents are Code of Federal Regulations, Title 10 Nuclear Safety Guide, U.S. Atomic Energy Commission Report TID-7016, and "Handbook of Nuclear Safety", H. K. Clark, U.S. Atomic Energy Commission Report, DP-532. 1.3 The PuO 2 shall be produced by a qualified process and in accordance with a quality assurance program approved by the user. 1.4 The values stated in SI units are to be regarded as the standard. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.