DIN CEN/TS 15937
DIN CEN/TS 15937 Sludge, treated biowaste and soil - Determination of specific electrical conductivity; German version CEN/TS 15937:2013
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2013
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2013