/services/b/tips/posts/tip-86-test-the-ph-response-time-to-determine-the-health-of-a-glass-electrodeThere is not a whole lot of current information on the response time of pH electrodes. Tests done in the 1960s for a clean, healthy pH glass electrode showed that the time constant was smaller for a positive pH change, a higher velocity, and a higheren-USTelligent Community 13