Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems. Requirements, testing, quality control|Pipe connections, Pipelines, Marking, Waste-water drainage, Steels, Temperature, Corrosion protection, Corrosion resistance, Watertightness tests, Pipe fittings, Thermal stress, Stainless steels, Type testing, Quality control, Welding, Prefabricated parts, Straightness measurement, Seals, Spigot-and-socket joints, Drainage, Pipes, Pressure, Dimensions