EN 50058:1998 Electrical Apparatus for the Detection and Measurement of Combustible Gases - Performance Requirements for Group II Apparatus Indicating up to 100 % (V/V) Gas
CENELEC - European Committee for Electrotechnical Standardization
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EN 50058:1998
EN 50058:1998 history
1998EN 50058:1998 Electrical Apparatus for the Detection and Measurement of Combustible Gases - Performance Requirements for Group II Apparatus Indicating up to 100 % (V/V) Gas
1991EN 50058:1991 Electrical apparatus for the detection and measurement of combustible gases; performance requirements for group II apparatus indicating up to 100 % (v/v) gas