According to the Metrology Center, on Monday, 24/06/2021, a webinar course on calibration of balances and weights was held in English by RADWAG Company. Testing and calibration laboratories and production units participated. In this course, the capability of super-sensitive equipment and how to use them in the field of calibration of scales and weights were presented. At the end of the session and during the question and answer session, the technical questions of the experts were answered by the course instructors.