BS 61: Specification for threads for light gauge copper tubes and fittings

BS 2633: Specification for Class I arc welding of ferritic steel pipework for carrying fluids

BS 2790: Specification for design and manufacture of shell boilers of welded construction

BS 5154: Specification for copper alloy globe, globe stop and check, check and gate valves

BS 7291-1: Thermoplastics pipe and fitting systems for hot and cold water for domestic purposes and heating installations in buildings. General requirements

BS ISO 7121: Steel ball valves for general-purpose industrial applications