Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements and test methods; German version EN 598:2007— 70 стр.
Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants; German version EN 12255-15:2003— 19 стр.
Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 2: Lifting plants for faecal-free wastewater; German version EN 12050-2:2000— 16 стр.
Wastewater treatment plants - Part 13: Chemical treatment; Treatment of wastewater by precipitation/flocculation; German version EN 12255-13:2002— 16 стр.
Wastewater lifting plants for buildings and sites - Principles of construction and testing - Part 1: Lifting plants for wastewater containing faecal matter; English version of DIN EN 12050-1— 18 стр.