What are pH calibration solutions?
A. pH probes require calibration periodically to ensure accurate repeatable measurements. Calibration solutions are used to calibrate the probe. These are liquids which are manufactured specific to the calibration process. Bluelab pH products require a two point pH calibration process to ensure the most reliable results. pH calibration solutions are available in pH 7.0, pH 4.0 and pH 10.0 If a pH below 7.0 is being measured, use pH 7.0 and pH 4.0 calibration solutions. If a pH above 7.0 is being measured, use pH 7.0 and pH 10.0 calibration solutions. Ensure the temperature of the solution and probe are as close as possible.
