FIELD: the invention refers to the field of non-destructive control of the speed of evaporation of liquids (solvents, detergent compositions, washings etc) and the time of their final removal from the surface of electro conductive solids.
SUBSTANCE: dosing mass (md) of analyzed liquid is put on a current conductive substrate fulfilled out of the material analogous to the material of the measuring electrode of the device measuring the contact diversity of potentials Uc and the time of its contact with the substrate τ0. A number of measurements Uc is conducted, the time of the termination of evaporation (τc) is fixed at achieving Uc = 0. The evaporation time of analyzed liquid as a part of division md is fixedon the diversity τc and τ0.
EFFECT: the invention provides high accuracy of measuring of the speed and the time of evaporations of liquids up to shares of monomolecular stratum of the absorbent.
2 dwg
