Specification for protection of electrical devices used on small craft to prevent ignition of surrounding flammable gases.
NORMA vydána dne 30.9.1991
Designation standards: BS 7489:1991
Note: NEPLATNÁ
Publication date standards: 30.9.1991
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: British technical standard
Kategorie: Technické normy BS