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 (https://doi.org/10.1351/pac198557101491)