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BS 142-1.4.4:1993

Electrical protection relays. Information and requirements for all protection relays. Specification for electrical disturbance tests-Fast transient disturbance test
standard by BSI Group, 02/15/1993

BS 1472:1955

Specification for wrought aluminium and aluminium alloys for general engineering purposes – forging stock and forgings
standard by BSI Group, 12/30/1955

BS 1476:1955

Wrought aluminium and aluminium alloys for general engineering purposes. Bars rods and sections
standard by BSI Group, 12/22/1955

BS 1491:1980

Specification for dimensions of 127, 120 and 620 photographic roll film, backing paper and film spools
standard by BSI Group, 03/31/1980