Аннотация: Results of a study on the initial stage of corrosion damage of carbon steel in 0.5mol/l NaCl by high-precision Coulometric Registration of Corrosion Products (CRCP) of the metal surface and in the corrosive medium are reported. During the measurements, the method of coulometric determination of corrosion products developed by the authors was used. An accurate quantitative determination of “initiation phase of corrosion” allowed to find a correlation between the early stage of the process and its subsequent development of corrosion. DOI: 10.2174/2352094907666171031162955