Electrical 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 published on 15.5.1999
Designation standards: BS EN 50055:1999
Note: WITHDRAWN
Publication date standards: 15.5.1999
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: British technical standard
Category: Technical standards BS