The measurement uses a volumetric titration method with silver nitrate solution (0.001 - 0.1 mol/L).

The sample is dosed into the reagent of water and nitric acid, then the precipitation titration with silver nitrate starts. The user has to enter the sample weight into the menu. The titration speed is precisely adjusted to the reaction rate by control algorithms.

The titration is performed automatically until the endpoint indication of measurement. At the end of the measurement, the result is displayed in mg/L, but can also be displayed in other units.