BS 78-2 – Specification for cast iron spigot and socket pipes (vertically cast) and spigot and socket fittings. Fittings
Dimensions and weights of bends, elbows, tees, angle branches, crosses, condensate receivers, hatchboxes, plugs and caps for water, gas, sewage, etc. Grades A, B, C and D; internal diameters (3 in to 48 in.). Quality of metal, mode of casting, test requirements, coating, testing facilities.
