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BS 1250-2:1946

Domestic gas applainces for immediate post war housing. Detailed requirements in regard to cookers, water heaters, gas fires, space heaters and refrigerators.
standard by BSI Group, 08/06/1946

BS 1758:1951

Specification for fireclay refractories (bricks and shapes) for use in the petroleum industry
standard by BSI Group, 09/07/1951

BS 142-1-1.2:1982

Electrical protection relays. Information and requirements for all protection relays-Specification for contact performance
standard by BSI Group, 11/30/1982