BS 4994:1987 is a withdrawn British Standard that specified requirements for the design, construction, inspection, testing, and erection of vessels and tanks made from reinforced plastics (FRP)
specified in BS 4994. It includes sample parameters for vessel diameters and allowable strain limit calculations. GRP Tank Design Calculator BS 4994
Chemical Processing
: For storing aggressive acids and alkalis. Water Treatment : In desalination and wastewater management.
- Load-Bearing Capacity: Calculations to ensure frames and sashes can support operational forces over their lifespan.
- Material Quality: Use of certified steel grades (e.g., BS EN 10149) with coatings (e.g., polyester or coil coatings) to resist corrosion.
- Joints and Fasteners: Secure assembly methods to prevent structural deformation.
Need a free alternative?
Look up the "PD CEN/TR 13121-4:2017" – this technical report offers guidance on the background of FRP design and references many BS 4994 concepts. It is sometimes available via university portals at no cost.
BS 4994:1987 is the British Standard specification for the design and construction of vessels and tanks in reinforced plastics (GRP). For decades, it was the global "gold standard" for chemical storage tanks and process vessels. The Problem with "Free" PDF Downloads