Method for determining the conductivity electrode constant

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Method for determining the conductivity electrode constant: Reference solution method: 1. Clean the electrode. To ensure measurement accuracy, the electrode should be rinsed several times with distilled water (or deionized water) having a conductivity of less than 0.5 uS/cm; 2. Prepare the calibration solution (the method for preparing the calibration solution is given in Appendix 2); 3. Connect the conductivity electrode to the conductivity meter; 4. Maintain the solution temperature at 25 ± 0.1°C. 5. Immerse the electrode in the calibration solution. 6. Read the display value Kx of the instrument; 7. Calculate the constant Jx of the conductivity electrode using the following formula: Where: K represents the standard conductivity of the solution (which can be found in Appendix 2), and Kx is the value read by the instrument