KS C IEC 61779-5:2003 可燃性氣體的檢測(cè)·測(cè)量的電氣裝置.第5部分:2組裝置指示煤氣達(dá)到100%時(shí)的性能要求?
Electrical apparatus for the detection and measurement of flammable gases-Part 5:Performance requirements for groupⅡ apparatus indicating a volume fraction up to 100% gas