Provides guidance on the handling, storage, installation and operation and maintenance of valves. It applies particularly for valves for use in petroleum, petrochemical and allied industries and also for valves used for general purposes.Cross References:BS 1414BS 1868BS 1873BS 4504:Part 3:Section 3.3BS 5150BS 5151BS 5152BS 5153BS 5154BS 5155BS 5156BS 5157BS 5158BS 5159BS 5160BS 5163BS 5351BS 5352BS 5353BS 6364BS 6755:Part 2