Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants; German version EN 12566-3:2016— 65 стр.
Small wastewater treatment systems for up to 50 PT - Part 1: Prefabricated septic tanks (includes amendment A1:2003); German version EN 12566-1:2000 + A1:2003— 35 стр.