Standard
withdrawn: DIN EN 50055 VDE 0400-2:1999-07Electrical apparatus for the detection and measurement of combustible gases Performance requirements for Group I apparatus indicating up to 5 % (v/v) methane in air |
Standard
withdrawn: DIN EN 50055/A1 VDE 0400-2/A1:1996-01Electrical apparatus for the detection and measurement of combustible gases Performance requirements for Group I apparatus indication up to 5 % (v/v) methane in air |