Specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances - Part 2: Performance requirements for apparatus used in statutory inspections and assessment; German version EN 50379-2:2004
测量加热设备燃烧烟气参数的便携式电气设备规范.第2部分:法定检验和评估用设备的性能要求;德文版EN 50379-2:2004