950 ITU‐T's Technical Reports and Specifications ISO/TC 268 (Sustainable development in communities). ISO/IEC JTC 1 (Information Technology) ISO/TC 153 (Valves). ISO/TC 138 (Plastics pipes, fittings and valves for the transport of fluids). ISO/TC 131 (Fluid power systems). ISO/TC 115 (Pumps). ISO/TC 30 (Measurement of fluid flow in closed conduits). ISO/TC 5 (Ferrous metal pipes and metallic fittings).