Based on the volume fractions calculated according to this procedure, the volume flow of each stock solution is determined by multiplication of the targeted total flow with the volume fraction of the respective stock solution. The flows of the stock solutions are merged in the multiplexer. Subsequent to the multiplexer, a valve determines, whether the flow is directed towards the waste while stabilizing the flows or towards the measuring device. After the measurement ended, the sample is drained to the waist using gas aspirated from the atmosphere in the glovebox. Prior to the subsequent experiment, gas is pumped through the measuring cells of the densimeter and viscometer several times to remove large residues of sample.