Our department manages the service procurement process for the periodic calibration of all devices used in the institution laboratories which require calibration, and organizes calibration intermediate controls. Preparation of calibration and intermediate control calendar and the external calibration of the reference materials used in the intermediate control processes are followed by our department. Calibration service is provided by calibration laboratories accredited by TÜRKAK within the scope of related devices and measuring ranges and after calibration all devices are certified. The control and maintenance of the calibration certificates is carried out by the responsible department and the calibration department.