BS 7461:1991 PDF
Specification for electrically operated automatic gas shut-off valves fitted with throughput adjusters, proof of closure switches, closed position indicator switches or gas flow control
Название (английский):
BS 7461:1991
Specification for electrically operated automatic gas shut-off valves fitted with throughput adjusters, proof of closure switches, closed position indicator switches or gas flow control
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 30 сентября 1991 г.
- ICS:
- 23.060.20
- SKU:
- BS 7461:1991