NORMSERVIS s.r.o.

BS 1975:1953

Specification. Primary cells and batteries for intrinsically safe bell signalling circuits in coal mines.

NORMA vydaná dňa 23.4.1953

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Tlačené (262.90 EUR)

The information about the standard:

Designation standards: BS 1975:1953
Note: NEPLATNÁ
Publication date standards: 23.4.1953
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS