标准摘要
[中文适用范围]： 为制定有关此类设备的性能和结构特征的单独新标准提供基础，这些设备旨在确定被测材料的特定物理和/或化学量。 [外文原描述]： Provides a basis for the development of individual new standards concerning the performance and constructional characteristics of such apparatuses which are designed to determine specific physical and/or chemical quantities of measured materials.
英文名称Electrical measuring instruments utilizing radioactive sources