ISO 12749-5:2018包括与核反应堆相关的术语、定义、注释和示例的收集，不包括定量数据。它为单个术语代表的每个核反应堆概念提供了最低限度的基本信息。充分理解概念需要核领域的背景知识。它旨在促进沟通和促进共识。 ISO 12749-5:2018的范围涵盖了整个核反应堆领域的广泛表面水平。

ISO 12749-5:2018 encompasses the collection of terms, definitions, notes and examples corresponding to nuclear reactors, excluding quantitative data. It provides the minimum essential information for each nuclear reactor concept represented by a single term. Full understanding of concepts requires background knowledge of the nuclear field. It is intended to facilitate communication and promote common understanding. The scope of ISO 12749-5:2018 covers the whole field of nuclear reactors at a broad surface level.