The use of electrochemical noise (EN) measurements for the study of corrosion processes is now well
established, but it remains somewhat unclear as to the best methods to use the extract useful information
from the measured time records. Many of the simpler methods are based on the calculation of statistical
parameters, such as the standard deviation of current, sI, or potential, sE, and the electrochemical noise
resistance, Rn. A problem with many parameters derived from EN measurements is they are inherently
noisy, which can make interpretation difficult. This paper explores an alternative method of plotting
these parameters that may offer some advantages. The method is inspired by the method developed by
Schmitt, and the relationship between this method and conventional statistical parameters is examined.