1.1 本指南讨论了可与实践要求的测试程序结合使用的测试程序，但不能作为实践要求的替代程序 E185 和 E2215 用于监视核反应堆容器。概述的补充机械性能测试允许获取有关反应堆容器钢机械性能辐射引起变化的额外信息。 1.2 本指南提供了辐照试样制备的建议，并确定了反应堆监督操作和辐照后测试规划的特殊预防措施和要求。 还提供了数据简化和计算程序的指导。参考其他ASTM试验方法进行试样试验的物理行为和原始数据采集。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 3.1 实践 E185 和 E2215 描述反应堆容器材料监督的最低程序，特别是在使用中发生的机械性能变化。本指南可用于生成有关辐射引起的特性变化的附加信息，以更好地协助确定最佳反应堆容器操作方案。

1.1 This guide discusses test procedures that can be used in conjunction with, but not as alternatives to, those required by Practices E185 and E2215 for the surveillance of nuclear reactor vessels. The supplemental mechanical property tests outlined permit the acquisition of additional information on radiation-induced changes in mechanical properties of the reactor vessel steels. 1.2 This guide provides recommendations for the preparation of test specimens for irradiation, and identifies special precautions and requirements for reactor surveillance operations and post-irradiation test planning. Guidance on data reduction and computational procedures is also given. Reference is made to other ASTM test methods for the physical conduct of specimen tests and for raw data acquisition. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 3.1 Practices E185 and E2215 describe a minimum program for the surveillance of reactor vessel materials, specifically mechanical property changes that occur in service. This guide may be applied to generate additional information on radiation-induced property changes to better assist the determination of the optimum reactor vessel operation schemes.