Specifies the characteristics and properties of fittings (injection-moulded and postformed) and joints made of unplasticized poly(vinyl chloride) (PVC-U), to be used for buried water mains and for water supplies above ground, both inside and outside buildings.
Status: WithdrawnPublication date: 1996-12
Edition: 1Number of pages: 4
Technical Committee: ISO/TC 138/SC 2 Plastics pipes and fittings for water supplies
ISO 4422:1990/Amd 1:1992
ISO 4422-3:1996Stage: 95.99
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.