2010DIN EN ISO 1452-1:2010 Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 1: General (ISO 1452-1:2009); German version EN ISO 1452-1:2009
1999DIN EN 1452-1:1999 Plastics piping systems for water supply – Unplasticized poly(vinyl chloride) (PVC-U) – Part 1: General