EN 1124-4:2005 Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems - Part 4: Components for vacuum drainage systems and for drainage systems on ships
2013EN 1124-4:2013 Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for wastewater systems - Part 4: Components for vacuum drainage systems and for drainage systems on ships
2005EN 1124-4:2005 Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems - Part 4: Components for vacuum drainage systems and for drainage systems on ships