A pH meter must be calibrated before each use to ensure accurate measurements. In this video, our lab technician demonstrates the procedure for performing a 3 point calibration using standard buffer solutions of 4.00, 7.00 and 10.00.

Special thanks to Joe Issa and the Gaston College Biotechnology department for helping to make this video.

Free pH meter eLearning course: http://www.ncbionetwork.org/education...