DS EN 1123-3:2005 Pipes And Fittings Of Longitudinally Welded Hot-Dip Galvanized Steel Pipes With Spigot And Socket For Waste Water Systems - Part 3: Dimensions And Special Requirements For Vacuum Drainage Systems And For Drainage Systems In Ship-Building Pertains to pipes and fittings of longitudinally welded hot-dip galvanized steel pipe with spigot and socket used in drainage systems in the living area.