Water Analysis for Corrosion Prediction - Sampling Analysis and Interpretation

This Guide focuses on those water chemistry parameters that are key for corrosion prediction. Additional parameters may be required for other materials and corrosion evaluations and decisions. This Guide does not provide a procedure for how, when, and where to take water samples or how to preserve samples.

Water sample analysis and data interpretation are critical to internal corrosion prediction, especially with respect to CO₂/H₂S and organic acid corrosion. Misunderstanding of the water data is a frequent source of error in corrosion prediction. This Guide provides guidelines on using water chemistry data for corrosion prediction, in particular, the issue of how to deal with organic acids and alkalinity including sampling analysis and interpretation.