Electrical apparatus for the detection and measurement of combustible gases - Performance requirements for Group II apparatus indiciting up to 100 % lower explosive limit
STANDARD published on 1.9.1999
Designation standards: ČSN EN 50057
Classification mark: 378320
Catalog number: 56366
Note: WITHDRAWN
Publication date standards: 1.9.1999
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN