The standard , formally titled the Specification for design and construction of vessels and tanks in reinforced plastics , remains a cornerstone document for the GRP (Glass-Reinforced Plastic) industry [1, 7, 11]. Although officially withdrawn and declared obsolescent by the British Standards Institution (BSI) in 2016, it is still widely referenced for the maintenance of existing tanks and by engineers who prefer its "unit properties" design philosophy [7, 8, 12]. Understanding BS 4994
BS 4994:1987 – “Specification for design and construction of vessels and tanks in reinforced plastics” was the definitive UK standard for GRP equipment. It covered: Bs 4994 Pdf Free Download WORK