BS 7461:1991(2011)
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

Standard No.

BS 7461:1991(2011)

Release Date

1970

Published By

/

Latest

BS 7461:1991(2011)

BS 7461:1991(2011) history

• 0000 BS 7461:1991(2011)
• 1991 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
• 0000 BS 5963:1981