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BS 142-3-3.2:1990

Electrical protection relays. Requirements for single input energizing quantity relays-Specification for single input energizing quantity measuring relays with dependent specified time
standard by BSI Group, 12/31/1990

BS 1870-1:1988

Safety footwear-Specification for safety footwear other than all-rubber and all-plastics moulded types
standard by BSI Group, 09/30/1988

BS 142-2-2.2:1982

Electrical protection relays. Requirements for the principal families of protection relays-Specification for general requirements for measuring relays used for protection
standard by BSI Group, 11/30/1982

BS 1000[31]:1982

Universal Decimal Classification. Second English full edition-Statistics. Demography. Population studies
standard by BSI Group, 03/31/1982