The quantity of polarization is determined by:

The quantity of polarization is often related to the potential difference that occurs between the metallic structure and the surrounding electrolyte. When discussing "off-native structure to electrolyte potential," it refers specifically to the condition where the protective measures (such as a cathodic protection system) are turned off, allowing the native or "as is" condition of the structure to interact with the electrolyte.

This potential is vital when analyzing corrosion risk because it reflects the structure's natural behavior in the presence of moisture, soil, or other electrolytic environments without the influence of applied protective measures. The polarization quantity thus measured is crucial to assess the corrosion protection status of the metal and evaluate the effectiveness of ongoing protective strategies.

In comparison, the other options imply different states or conditions that do not accurately represent the standard way of assessing the polarization in relation to the structure and electrolyte. They may either involve conditions that are not relevant in the assessment process or combine terms that do not traditionally correspond to polarization assessments.