In this technical presentation, the speaker explains what calibration is and why calibration is necessary. He discusses the basic terms and definitions of calibration technology and explains the calibration process. He then goes on to discuss special guidelines, particularly in GMP-regulated industries. He also explains the essential criteria for professional and GMP-compliant calibration. This also includes the traceability of a calibration and the correct documentation of the process. Finally, the speaker will introduce the most important calibration institutions.