27-03-2008
20
Chemical
Plastics, Resins & Adhesives
400 L.E.
ISO 4422 – 3 / 1996 Pipes and fittings made of unplasticized poly ( vinyl chloride ) (PVC – U) for water supply – Specifications – Part 3 : Fittings
Total Modification
Obligatory
423
83.140