Methods of evaluation of the corrosion hazard caused by stray currents to metal structures containing aggressive media

Typical methods have been characterized of determination of the corrosion h azard caused by stray currents to metal structures transporting or storing aggressive media (e.g. fuel pipelines, tanks). Monitoring of the hazard all ows determination of its extent, facilitates choice of the most appropriate anticorrosion protection method individually for each structure, and also enables evaluation of the effectiveness of a functioning protective install ation. This paper assesses the practicability of the above-mentioned method s. Application of methods leading to erroneous conclusions regarding the co rrosion hazard of electrolytic corrosion in relation to real electrode proc esses occurring on the metallic surface of the structure can lead to danger ous consequences. The effect of corrosion processes is the corrosive perfor ation of metal leading to leakage to the ground of aggressive media, contam inating the natural environment. Seeking new unequivocal methods regarding electrolytic corrosion processes proceeding on structures is a fundamental issue.