To lay down the procedure for Calibration of pH Meter. This procedure is applicable for Calibration of pH meters located in the Quality control. Potassium tetraoxalate, 0.05m: Dissolve 12.61g of KH3 (C2O4)2.2H2O in water to make 1000mL.
Potassium biphthalate, 0.05m: Dissolve 10.12g of KHC8H4O4, previously dried at 1100C for 1
pH meter, LINEARITY, coefficient, concentration, quality control lab

Potassium biphthalate, 0.05m: Dissolve 10.12g of KHC8H4O4, previously dried at 1100C for 1
pH meter, LINEARITY, coefficient, concentration, quality control lab

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