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BS 9153:1982

Заменен
Rules for the preparation of detail specifications for all-or-nothing electromechanical relays of assessed quality primarily intended for telecommunication applications. Full and basic assessment levels — 22 стр.
BS 9153:1982
Заменен
BS EN 116501:1996
Заменен
BS EN 61811-51:2002
Заменен
BS EN 61811-1:2015
Действует