Before a pH measurement is performed, the electrode must be calibrated properly. Selecting the right pH buffers as well as careful execution and evaluation of your calibration are key.

METTLER TOLEDO's pH calibration poster guides you step by step through pH calibration, from buffer group selection to calibration data review. You can place the A3 poster on the wall behind your pH meter and take a glance whenever calibrating your instrument.

To receive a copy of the poster, simply go to: 

www.mt.com/uk-calibration-poster

Lab Asia Dec 2025

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