Model Specification of Water Pipes and Fittings Prepared by the Committee Appointed by the Minister to Consider and Advise Him on Questions Relating to --: (a) The Construction and Standardisation and Testing of Water Pipes and Fittings; and (b) Bye-laws Or Regulations for Preventing the Waste, Undue Consumption, Misuse, Or Contamination of Water
Great Britain. Water Fittings and Byelaws Committee
Jan 1924 ยท H.M. Stationery Office