Standard Practice for Verification of Algorithm and Equipment for Electrochemical Impedance Measurements

Abstract

The availability of a standard procedure, standard material, and standard plots should allow the investigator to check his laboratory technique. This practice should lead to electrochemical impedance curves in the literature which can be compared easily and with confidence. Samples of a standard ferritic type 430 stainless steel (UNS 430000) used to obtain the reference plots are available for those who wish to check their equipment. Suitable resistors and capacitors can be obtained from electronics supply houses. This test method may not be appropriate for electrochemical impedance measurements of all materials or in all environments.