PH standard buffer solutionIt is a reference solution with a known pH value and used for electrode calibration. PH buffer is crucial for ensuring accurate pH readings. We have a range of accurate pH calibration solutions to choose from.

PH standard buffer solutionIt is a solution that can maintain a stable pH value. If a small amount of acid or base is added to this solution, or if a chemical reaction in the solution produces a small amount of acid or base, and the solution is appropriately diluted, the pH value of this solution is basically stable. This solution that can resist a small amount of acid or base or dilution and make the pH value less likely to change is called a pH buffer solution.

Our pH standard solution is cheap and has good sealing performance. Suitable for calibration of pH electrodes for laboratory and industrial use.

Purpose:Used to calibrate the accuracy of electronic pH testers. The electronic pH tester has high accuracy, but with prolonged use, the detection results may deviate. Therefore, the tester should be calibrated regularly during use.

Product parameters




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name	model	describe	capacity
PH standard solution	HWSPH401	pH 4.01	500ml
	HWSPH686	pH 6.86	500ml
	HWSPH700	pH 7.00	500ml
	HWSPH918	pH 9.18	500ml
	HWSPH1001	pH 10.01	500ml







Correction frequency




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1. The pH tester should be calibrated every two weeks to ensure accuracy, as it is constantly in the working state (i.e. monitoring the pH value for a long time).

2. The pH tester is used to periodically check the pH value and should be calibrated before testing to ensure accuracy.

3. After replacing the electrodes of the pH tester, the new electrodes should be calibrated.