BS 1975:1957
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification. Primary cells and batteries for intrinsically safe circuits in coal mines
Hardcopy
23-07-2013
English
01-01-1957
Wet and dry types. Dimensions of dry types, components of wet cells; containers, current-limiting resistors, connecting wires, terminals. Purity of zinc electrodes and electrolyte for wet cells, performance requirements include discharge and storage tests, current and voltage limitation tests.
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