Language
BS 4174 - 1972
BS 7764 - 1994
BS 916 - 1953
BS 4190 - 2014
BS 1768 - 1963
BS 4183 (T8) - 1967
BS 1769 - 1951
BS 4190 - 2001
BS 1981 - 1991
BS 7670-1 - 1993
BS 3692 - 2014
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