University of Chemistry and Technology Prague 1 article published in JoVE Environment Metal Corrosion and the Efficiency of Corrosion Inhibitors in Less Conductive Media Lukáš Matějovský1, Jan Macák2, Olga Pleyer1, Martin Staš1 1Department of Petroleum Technology and Alternative Fuels, University of Chemistry and Technology Prague, 2Department of Power Engineering, University of Chemistry and Technology Prague The testing of processes associated with material corrosion can often be difficult especially in non-aqueous environments. Here, we present different methods for short-term and long-term testing of corrosion behavior of non-aqueous environments such as biofuels, especially those containing bioethanol.