In the framework of the cooperation between the Group for Metrology in Chemistry, DMDM and the Faculty of Technology and Metallurgy, University of Belgrade, as well as within the framework of the Cooperation Program in providing public administration support to higher education institutions in the educational process for the academic year 2025/2026, a professional internship was organized for final year undergraduate students, as well as for master's students at DMDM.   Internship started on 17.03.2026. and it will be continued in the future in the framework of the signed agreement with the Faculty of Technology and Metallurgy. The internship is organized for two students in one working week.

Students were first introduced with the role, rights and duties of DMDM ​​, and after that they participated in the regular activities of the Group for Metrology in Chemistry.

The representative of the Directorate for Measures and Precious Metals Nebojša Arsenijević, Head of the Metrological Inspection Department, Belgrade, attended the meeting of administrative cooperation in the field of standards (ADCO MI) and the WELMEC WG5 working group, which was held from March 24 to 25, 2026 in Rome, Italy.

The organizer of the meeting was the European Commission - IBF connect. The meeting was attended by 35 participants and 4 training organizers.

The main topics of the meeting were the exchange of experiences and improvement of market surveillance of benchmarks within the EU legislative framework (MID and NAWI).

The meeting provided a detailed understanding of the new guidelines for market surveillance, an insight into specific tools for risk assessment, involvement in international projects, a better understanding of problems in practice and preparation for the introduction of digital solutions (DPP).

It was concluded that it is necessary to further harmonize national practices, strengthen cooperation between countries, as well as introduce digital tools in supervision.

Representatives of the Directorate for Measures and Precious Metals (hereinafter: DMDM), Slobodan Zelenika, Head of the Department for Length, Optical Sizes and Acoustics, Gordana Stefanović, metrologist for acoustics, roughness and shapes and Aleksandar Jevremović, metrologist for length, participated in the work of the EURAMET Technical Committee for Acoustics, Ultrasound and Vibration (EURAMET TC-AUV), which was held hybridly, from April 14 to 15, 2026, in Warsaw, Poland.

The organizer of the meeting was the National Metrological Institute of Poland (GUM). The EURAMET TC-AUV meeting was attended by more than 25 participants, representatives of National Metrology Institutes (NMI) and Designated Institutes (DI) from most European countries.

The chairman of this meeting was Dominique Rodríguez from the National Metrological Institute of France (LNE), who spoke about the organization of the EURAMET TC-AUV, which is divided into three subcommittees:

• Sound in the air SC-A;
• Ultrasound and underwater acoustics SC-U;
• Acceleration and vibration of the SC-V.

At the meeting of the Airborne Sound Subcommittee of SC-A (in which DMDM ​​participates) the status of all existing CMCs and the application of future CMCs of all EURAMET participants were discussed. The Chairman of TC-AUV announced that DMDM ​​successfully maintained the status of existing CMCs.

Serbia is one of the countries currently participating in the EURAMET.AUV.A-K6 key comparison for LS2P (half-inch laboratory etalon microphones - gold standards) with 14 other European countries, including Saudi Arabia.

The work of the EURAMET TC-AUV is important for areas such as industry, healthcare and environmental protection. The goals of these meetings are continuous monitoring of relevant topics in the field of metrology in acoustics, improvement of communication and cooperation within EURAMET, as well as exchange of ideas and plans for future activities.

The next EURAMET TC-AUV meeting is proposed to be held in 2027, organized by CEM, the National Metrological Institute of Spain, in Madrid (Tres Cantos).

Representatives of the Directorate for Measures and Precious Metals (hereinafter: DMDM), Dragan Pantić, Head of the Department for Mass, Pressure, Volume and Flow and Jelena Ivandić, Quality Manager in the Group for Certification and Quality, in the period from March 25 to 27, 2026, attended the 21st meeting of the Technical Committee for Quality of the European Association of National Metrology Institutes - EURAMET TC-Q, which was held in Vilnius, Republic of Lithuania.

The organizer and host of the meeting was the National Metrological Institute of the Republic of Lithuania - Center for Physical Sciences and Technology (FTMC).

The EURAMET TC-Q meeting was attended by about 70 participants, representatives of national metrology institutes and designated laboratories from most European countries.

In addition to the presented five-year reports of committee members, with the aim of confirming the functioning of the quality system of metrological institutes and designated laboratories, this year the institutes of Slovenia (UL-FS-LMPS, ZAG-SM310) and Norway (NIVA) presented their systems.

Participation in EURAMET TC-Q meetings is multifold beneficial, both for the state itself and experts, as well as for the improvement of work and more efficient performance of work in DMDM. Raising metrological education through constant contacts with leading laboratories in the world enables better and higher quality metrological work in DMDM ​​and raising the level of quality of metrological services in the field of calibration.

The representative of the Directorate for Measures and Precious Metals (hereinafter: DMDM), Snezana Renovica, Head of the Group for Time and Frequency, participated in the work of the EURAMET Technical Committee for Time and Frequency EURAMET TC-TF, which was held from March 26 to 27, 2026 in Bern, Switzerland.

The organizer of the meeting was the National Metrological Institute of Switzerland METAS.

The EURAMET TC-TF meeting was attended by about 50 eminent experts, representatives of national metrology institutes (NMI) and designated institutes (DI) from most European countries, representatives of BIPM, authorized representatives of EURAMET, as well as colleagues from Asia and the USA.

Significant topics presented at the meeting were about cooperation between BIPM and EURAMET and progress in the field of strategic planning, enhanced cooperation within networks and digital transformation. Reports on activities in the past year, as well as reports on active projects, were submitted. All currently active networks are also presented.

Participation in EURAMET TC-TF meetings enables the collection and exchange of information important for fulfilling the obligations defined by the CIPM MRA Agreement, reporting and maintaining the quality of existing DMDM ​​services and the possibility of implementing new ones, as support for interested parties in the country.

Based on the Law on Time Calculation ("Official Gazette of the SCG", No. 20/06), daylight saving time in 2026 begins on March 29, 2026 at 2 h, 00 min, 00 s, so that, moving by one hour ahead, the time at 2 h, 00 min, 00 s counts as 3 h, 00 min, 00 s.

The rulebook on opacimeters was published in the “Official Gazette of the RS”, number 23/2026 of March 12, 2026.

This rulebook specifies the requirements for opacimeters, labeling of opacimeters, the method of determining the fulfillment of requirements for opacimeters, the method of testing the type of opacimeters, measurement methods, as well as the method and conditions of certification of opacimeters. This rulebook enters into force on March 20, 2026, and on the day of its entry into force, the Rulebook on opacimeters ceases to be valid ("Official Gazette of the RS", number 15/15).

The Rulebook on automatic liquid level gauges was published in the „Official Gazette of the RS”, No. 21/2026 of January 30, 2026.

This rulebook specifies the requirements for automatic liquid level gauges in stationary tanks, labeling of automatic liquid level gauges in stationary tanks, technical documentation, the method of determining the fulfillment of requirements for automatic liquid level gauges in stationary tanks, the method of testing the type of automatic liquid level gauges in stationary tanks, measurement methods, as well as the method and conditions of verification of automatic liquid level gauges in stationary tanks.

This rulebook enters into force on March 14, 2026, and on the day of its entry into force, the Rulebook on Automatic Liquid Level Gauges in Stationary Tanks ("Official Gazette", No. 114/13) ceases to be valid.

The Rulebook on hydrometer certification was published in the “Official Gazette of the RS”, No. 21/2026 of January 30, 2026.

This rulebook prescribes the manner and conditions of the first, periodic and extraordinary verification of hydrometers, as well as special purpose hydrometers, the requirements that the hydrometer must meet during verification, as well as the method of determining the fulfillment of those requirements.

This Rulebook enters into force on March 14, 2026, and on the day of its entry into force, the Rulebook on Hydrometers ("Official Gazette", No. 66/14) ceases to be valid.

The representatives of Directorate of  Measures and Precious Metals, Dr Jelena Bebić, Head of Group for Metrology in Chemistry, đJasmina Zukan Banovic, metrologist for metrology in chemistry - coordinator and Luka Gažević, metrologist for chemical and related quantities, from 3.  to 5. February 2026, have actively participated in the work of the EURAMET Technical Committee on Metrology in Chemistry (EURAMET TC-MC) as well as at the subcommittee meetings for organic and bio analysis and gas analysis in  Ljubljana, Slovenia.

The EURAMET TC-MC meeting was attended by over 70 eminent experts, representatives of the National Metrology Institutes (NMI) and designated laboratories from most European countries. The host and the organizer of the meeting was NIB, National Institute of Biology, acting as DI of Slovenia.

Reports from all subcommittees within TC-MC, the status of current EPM projects, current European Metrology Networks (EMNs), projects related to various types of cooperation between National Metrology Institutes, key comparisons, as well as information regarding the status of  submitted and published calibration and measurement capabilities  (CMCs) were discussed at the meeting.