Electrochemical Testing measures the corrosion potential, applying a reference electrode and a voltmeter with high internal resistance. Electrochemical testing makes use of a potentiostat. Electrochemical testing is not a reliable method for assessing long-term galvanic corrosion behavior of epoxy-metal couples in seawater but is effective in evaluating differences in corrosion resistance with varying cathode. The electrochemical testing consist of the generation of anodic polarization curves in an electrolyte of 10% calf serum and 90% isotonic saline at temperature of 37.0 ± 0.5 degree Celsius and a pH of 7.00 ± 0.05.