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Technical Considerations on the Use of the 100mV Cathodic Polarization Criterion

Published: 20070311 by NACE International
Author(s): Robert Gummow

The 100mV cathodic polarization criterion is being used more extensively on piping in the oil and gas industry which has prompted a discussion on the limits of its use. This paper summarizes the
technical literature on the validity of this criterion with respect to elevated temperature, sulfate reducing bacteria, mill-scale, type of metal, mixed metal structures stress corrosion cracking soil moisture and AC corrosion.

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