DIN SPEC 4261-6:2011 Determination of the nominal daily load of domestic wastewater during the operation of small wastewater treatment plants according to EN 12566-3 and DIN 4261-1
2011DIN SPEC 4261-6:2011 Determination of the nominal daily load of domestic wastewater during the operation of small wastewater treatment plants according to EN 12566-3 and DIN 4261-1