标准摘要
[中文适用范围]： 包括英语和法语的术语和定义。适用于工业过程测量和控制系统中使用的模拟直流信号，用于在系统元件之间传输信息。不适用于完全在以下范围内使用的信号 [外文原描述]： Applicable to analogue direct current signals used in industrial-process measurement and control systems to transmit information between elements of systems. Does not apply to signals used entirely within an element.
英文名称Analogue signals for process control systems. Part 1: Direct current signals