BS 2497-6:1988

Acoustics. Reference zero for the calibration of audiometric equipment-Specification for a standard reference zero using an artificial ear complying with BS 4669
standard by BSI Group, 02/29/1988

BS 1967:1953

Dimensions of sprockets for 35 mm cinematograph projectors
standard by BSI Group, 04/09/1953

BS 1772:1951

Sizes of photographic sheet film other than x-ray film.
standard by BSI Group, 09/14/1951

BS 1225:1970

Recommended methods for the spectrographic analysis of high purity zinc and zinc alloys for die casting
standard by BSI Group, 11/24/1970

BS 1440:1962

Endless V-belt drives for industrial purposes
standard by BSI Group, 01/26/1962

BS 2547-8:1983

Specification for basic dimensions of cones and tubes for winding textile yarns-Inner diameters and lengths of cylindrical tubes
standard by BSI Group, 08/31/1983

BS 1801:1956

Specification for tagged boot and shoe laces (cotton)
standard by BSI Group, 03/07/1956

BS 2710:1956

Specification for bromomethane (methyl bromide)
standard by BSI Group, 02/29/1956

BS 2091:1969

Specification for respirators for protection against harmful dusts, gases and scheduled agricultural chemicals
standard by BSI Group, 01/01/1978

BS 185 SECTION 12:1972

Glossary of aeronautical and astronautical terms-Parachutes
standard by BSI Group, 07/31/1985

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