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BRITISH STANDARD Safety of machinery — Human physical performance — Part 2: Manual handling of machinery and component parts of machinery click below BS EN 1005-2:2003 pdf free download click here  BS 978-1:1968 pdf free download

BRITISH STANDARD Specification for Fine pitch gears — Part 1: Involute Spur and Helical Gears click below BS 978-1:1968 pdf free download click here BS 976:1987 pdf free download

BRITISH STANDARD Schedule for Density-composition tables for aqueous solutions of hydrochloric acid click below BS 976:1987 pdf free download click here BS 975:1987 pdf free download  

BRITISH STANDARD Schedule for Density-composition tables for aqueous solutions of nitric acid click below BS 975:1987 pdf free download click here BS 970: Part 6: October 1973 pdf free download