Reference: Kasahara K., Sato., and Adachi, H., "An Improved Method for Measuring Pipe-to-Soil Potential and Current Density at Cathodically Protected Pipelines", Materials Performance, March 1979.

Review: Documentation of two unsophisticated experimental studies. Their conclusion is that the procedure permits the accurate measurement of IR free pipe-to-soil potential and current density even under the influence of both cathodic protection currents and stray currents.