BS 4994:1987

Specification for Design and construction of vessels and tanks in reinforced plastics

Requirements for the design, construction, inspection, testing and erection of vessels and tanks in reinforced plastics.

This British Standard specifies requirements for the design, materials, construction, inspection, testing and erection of vessels and tanks in reinforced plastics, consisting of a polyester, epoxy or furane resin system reinforced with glass fibres, manufactured by the wet lay-up process. Constructions both with and without a lining of thermoplastics are included.

Laminar constructions are usually anisotropic and the design method in this standard, being based on unit loadings, is particularly suited to the design of composites of reinforced plastics.

This standard covers vessels and tanks subject to temperatures between

-30 degrees C and 110 degrees C.

This revision of this British Standard has been made to take account of experience with reinforced plastics vessels and tanks and opportunity has been taken to extend the scope to include filament winding and rectangular tanks and to categorize vessels in relation to duty.

This British Standard is a revision of BS 4994:1973, which is withdrawn together with its explanatory supplement PD 6480.