DIN Standards Committee Plastics
ISO 4422-4
Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply - Specifications - Part 4: Valves and ancillary equipment
Rohre und Formstücke aus weichmacherfreiem Polyvinylchlorid (PVC-U) für die Wasserversorgung - Spezifikationen - Teil 4: Armaturen und Zusatzeinrichtungen
Responsible national committee
NA 054-05-03 AA - Fittings for pressure pipelines made from thermoplastic materials
Responsible international committee
ISO/TC 138/SC 2 - Plastics pipes and fittings for water supplies