KS C IEC 61779-5-2003(2023) Electrical devices for detecting and measuring combustible gases - Part 5 Performance requirements for Group II devices for detecting combustible gas volume fraction
2003KS C IEC 61779-5:2003 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