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The last edit to this post was made by hesonchang214 on 2019-11-7 at 07:14. 1. The accuracy of measuring the conductivity of deionized water used in electroplating is related to changes in water temperature. As the water temperature rises, the viscosity of water decreases and the migration speed of ions increases, which results in a higher measured conductivity; conversely, the conductivity is lower. Therefore, corrections are necessary, using a water temperature of 20 degrees as a reference. 2. It is also related to the flow rate of water. Because when measuring conductivity, the electrodes are inserted into the water being tested, and if the flow rate of the water is low, impurities in the water can easily adhere to the electrodes, causing contamination of those electrodes; this in turn affects the accuracy of the measured conductivity. 3. It is related to the impact of water quality pollution. Primarily, when water comes into contact with air, it becomes contaminated by substances such as CO2 and dust in the air. The purer the water, the lower its stability, and it is more susceptible to contamination, which in turn increases the water’s conductivity. Some pure water tanks experience an increase in conductivity due to inadequate protection. To establish a unified standard for easy comparison, the measurement point for the conductivity of the secondary deionized water is located at the main pipe of the mixed-bed outlet water, where continuous measurements and analyses are carried out.