Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply — Specifications — Part 4: Valves and ancillary equipment
Edition 1 1997-10
Withdrawn
ISO 4422-4:1997
25967
ISO 4422-4:1997Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water supply — SpecificationsPart 4: Valves and ancillary equipment