ELECTRICAL APPARATUS FOR THE DETECTION AND MEASUREMENT OF COMBUSTIBLE GASES. PERFORMANCE REQUIREMENTS FOR GROUP II APPARATUS INDICATING UP TO 100% LOWER EXPLOSIVE LIMIT.
NORMA vydána dne 24.10.1994
Designation standards: UNE-EN 50057:1994
Note: NEPLATNÁ
Publication date standards: 24.10.1994
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE