Language
BS 3575 - 1963
BS 450 - 1958
BS 4320 (C) - 1968
BS 4190 - 2014
BS 2470 - 1973
BS 4929-2 - 1973
BS 4183 (T2) - 1967
BS 916 - 1953
BS 3692 - 2014
BS 4190 - 2001
BS 3410 (-2) - 1961
BS 1769 - 1951
BS 4620 (T5) - 1970
BS 4464 - 1969
BS 1768 - 1963
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