Subcommittee Subcommittee Title Published standards Standards under development
ISO/TC 138/SC 1 Plastics pipes and fittings for soil, waste and drainage (including land drainage) 36 5
ISO/TC 138/SC 2 Plastics pipes and fittings for water supplies 68 1
ISO/TC 138/SC 3 Plastics pipes and fittings for industrial applications 11 3
ISO/TC 138/SC 4 Plastics pipes and fittings for the supply of gaseous fuels 35 9
ISO/TC 138/SC 5 General properties of pipes, fittings and valves of plastic materials and their accessories -- Test methods and basic specifications 95 4
ISO/TC 138/SC 6 Reinforced plastics pipes and fittings for all applications 29 4
ISO/TC 138/SC 7 Valves and auxiliary equipment of plastics materials 18 2
ISO/TC 138/SC 8 Rehabilitation of pipeline systems 18 3