“…One can notice that the composition of the electrolyte is usually constituted of sulfuric acid (H 2 SO 4 ) added with a depassivator as KSCN [13][14][15], NH 4 SCN [2,17] or HCl [14] in the case of the modified EPR method. The scan rate range is between 0.5 and 2.5 mV/s [13][14][15], and the temperature of the test is often ambient [2,13,17,23] or 30 ° C [13,15,20]. However, the high precision to detect mild degrees of sensitization, i.e., in the range from where no carbide precipitation occurs to the level where one or more grains are completely surrounded by "ditches" in the etch structure, requires (i) a specific study of the electrolyte composition, temperature, potential range, and sweep rate [2,[13][14][15][16][17] and (ii) the selectivity required to detect the sensitization ( Table 1).…”