In chronopotentiometry (at constant current density ), the potential of the indicator electrode at the instant when the time that has elapsed since the application of current is
equal to one-fourth of the transition time. Appropriate correction for double-layer charging is needed in practice.

Source:

PAC, 1985, *57*, 1491*
(Recommended terms, symbols, and definitions for electroanalytical chemistry (Recommendations
1985))
* on page 1502