On May 26, 2015, students of the Higher Technical School of Professional Studies in Zrenjanin visited the Department of Control and Supervision of Zrenjanin (OKN Zrenjanin), organizational unit of the Directorate of Measures and Precious Metals (DMDM) for Banat region.

Students were introduced with the responsibilities of the DMDM within the Ministry of Economy and its duties and tasks in the field of metrology, which are a function of business of economic, scientific and other organizations as well as improving quality of life. They were familiar with the territorial jurisdiction of the OKN Zrenjanin and work conducted by this Department.

After getting acquainted with the organizational chart of DMDM and screening a promotional film about the work of the Directorate, expert visit continued a tour of the laboratories. In the laboratory for physico-chemical measuring instruments to students was demonstrated verification of hydrometers for measuring density and quality analysis of precious metals articles. Finally, the students were given answers to many questions regarding the use and ways of correctness checking of measuring instruments that are used in everyday life.