From November 29 to December 3. 2021, in the Directorate of Measures and Precious Metals, Dr Jelena Bebić, Head of the Group for Metrology in Chemistry, held hands-on training for the production and certification of reference materials - ethanol in water. The training was attended by three employees from the Bureau of Metrology of North Macedonia (hereinafter: BOM). The training included the determination of ethanol purity by the Karl-Fischer method, gravimetric preparation of certified reference materials of ethanol in water, and analysis of measurement results obtained during their certification on a gas chromatograph.

Luka Gažević, a metrologist at Group for Metrology in Chemistry, demonstrated verification of refractometers, while Jasmina Zukan Banović, also a metrologist at Group for Metrology in Chemistry demonstrated verification of hydrometers, greap must meter, and alcoholometers.