Aqua Master pH 4.01 Calibration Solution 100ml

The pH 4.01 Calibration Solution is used for calibrating pH meters, which measure the acidity or alkalinity of a solution. It is designed for calibration in the pH range of 3.5 to 5.5. This solution is precisely formulated to a pH of 4.01 and is traceable to NIST standards, ensuring its accuracy and reliability.

To use, simply immerse the pH electrode of the meter into the solution and adjust the reading to 4.01. The solution should be handled carefully and stored at room temperature (15-25 °C). Avoid contaminating the solution by returning any liquid to the bottle after use, as this can compromise the accuracy of future calibrations.