Procedure and device for determining whether a specified limit value of the part contained in a liquid mixture is reached or exceeded at a lower evaporative temperature than the other liquid

摘要

PCT No. PCT/EP83/00297 Sec. 371 Date Jun. 29, 1984 Sec. 102(e) Date Jun. 29, 1984 PCT Filed Nov. 11, 1983 PCT Pub. No. WO84/02003 PCT Pub. Date May 24, 1984.During a process for determining the percentage of a given liquid contained in a liquid mixture, the given liquid having a lower evaporation temperature than the rest of the mixture, an observed spontaneous change in an electric resistance wire, which is immersible into the liquid mixture, while temporarily applying a predetermined energy quantity and thus heating the wire until the liquid mixture reaches or exceeds boiling temperature, is used for determining suitable measured quantities. When supplying a specific and defined energy quantity, having been determined in a representative sample, for heating the wire to the boiling point of the liquid mixture, either the energy conversion, which occurred during this time interval with a constant time interval for the energy supply, or the time interval for the energy conversion, which occurred with a given energy quantity, is measured and compared with the corresponding measured quantities determined in the sample.