Organized by the Directorate of Measures and Precious Metals, Serbian Chamber of Commerce, under the auspices of the European Commission and the Institute for Reference Materials and Measurements (IRMM) as а project leader, at the Serbian Chamber of Commerce, a TrainMiC - A training program for the measurement in chemistry, was held in a period of December 21-22, 2016. There were 11 participants, that were representatives of accredited laboratories for testing and calibration, institutes, industry, laboratories in the accreditation process and Directorate of Measures and Precious Metals. Topics presented in this course were related to the traceability of measurement results, uncertainty of measurement - principles, uncertainty of measurement – approaches to evaluation, validation of measurement procedures and sampling as a part of measurement procedure, according to standard ISO/IEC 17025. In the course, presented two additional presentations - Calibration of thermometers and Calibration laboratory flasks. Example session EX-05-1-Nitrate concentration in drinking water.