BS 2538:1954

Отменен

Specification for air-cooled flameproof single-phase lighting transformer units supplied from high voltage systems — 8 стр.

Ссылочные документы

Заменен

Specification for identification of pipelines and services — 12 стр.

Действует

Specification for the provision of visits, fieldwork, expeditions and adventurous activities outside the United Kingdom — 48 стр.

Отменен

Specification for cable glands and sealing boxes for association with apparatus for use at mines and quarries — 14 стр.

Действует

Specification for flameproof transformers for use in mines — 18 стр.