What is the temperature effect on pH glass impedance ?
pH glass impedance goes up as temperature goes down by a factor of 2.5 times for each 10 degrees C change in temperature. For example, if the glass impedance is 100 Megaohms at 25 degrees C, it will be 250 Meg ohms at 15 degrees C. Higher impedance slows down the electrode’s speed of response to changing pH levels. This is characteristic of all pH electrodes.
