Draft Document - Specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances - Part 1: General requirements and test methods; German version prEN 50379-1:2011
文件草案.测量加热设备燃烧烟气参数的便携式电气设备规范.第1部分:一般要求和试验方法;德文版prEN 50379-1:2011