DIN EN 60051-1:2017
直接作用模拟指示电测量仪表及其附件.第1部分:定义和对所有部分通用的一般要求(IEC 60051-1-2016);德文版本EN 60051-1-2017
Direct acting indicating analogue electrical measuring instruments and their accessories - Part 1: Definitions and general requirements common to all parts (IEC 60051-1:2016); German version EN 60051-1:2017