The representative of the Directorate for Measurements and Precious Metals (hereinafter: DMDM), Boban Zarkov, Metrologist for Quantities of Optical Radiation - Coordinator, in the period from January 22 to 26, 2024, participated in the work of the EURAMET Technical Committee for Photometry and Radiometry ( EURAMET TC-PR), which this year was held hybridly in Istanbul, Turkey.

The organizer of the meetings was the National Metrology Institute of Turkey - UME Tubitak. The meeting was attended by 19 participants from national metrology institutes, 12 guests from institutions that actively participate in the work of EURAMET and 13 metrologists who participated in the work of the technical committee via the Internet.

During this meeting, a workshop on single-photon radiation sources and a retrospective of previous research through the EURAMET project SEQUME was held, including all project partners as well as interested parties from the field of industry and telecommunications.

Also, a seminar was held in the form of a training, where the participants were shown the Toolbox used by the pilot laboratories in Euramet's key comparisons. Mathematical models of the final result of the participants, the use of the Phython programming language, as well as the Rulebook on the selection of a pilot laboratory were discussed.

The meeting discussed key comparisons, as well as the measurement results that DMDM submits to this technical committee in a timely manner.

By participating in the work of EURAMET TC-PR and raising metrological education through constant contacts with leading laboratories in the world, better and better metrological work of the laboratory for optical sizes and acoustics DMDM is enabled, as well as raising the quality of services in the field of photometry and radiometry.

The Rulebook on certification of gauges and measuring systems for continuous and dynamic measurement of quantities of liquids other than water - devices for dispensing liquefied petroleum gas was published in the "Official Gazette of the RS", number 5/2024 of January 22, 2024, which enters into force on 30 January 2024, and it starts to be applied on January 1, 2025.

This regulation prescribes in more detail the method and conditions of periodic and extraordinary verification (hereinafter: verification) of gauges and measuring systems for continuous and dynamic measurement of the amount of liquids other than water - liquefied petroleum gas dispensing devices (hereinafter: LPG dispensing devices) , the requirements that the LPG dispenser must meet during certification, as well as the method of determining the fulfillment of the requirements for the LPG dispenser.

The Rulebook on certification of gauges and measuring systems for continuous and dynamic measurement of the amount of liquids other than water installed on a vehicle and on a vehicle with a tank was published in the Official Gazette of the RS", No. 5/2024 of January 22, 2024, which enters into force on 30 January 2024, and it starts to be applied on January 1, 2025.

This regulation prescribes in more detail the manner and conditions of periodic and extraordinary verification (hereinafter: verification) of gauges and measuring systems for continuous and dynamic measurement of the amount of liquids other than water installed on the vehicle and on the vehicle with a tank (hereinafter: measuring systems), requirements that the measuring system must meet during verification, as well as the method of determining the fulfillment of the requirements for the measuring system.

The Rulebook on certification of gas meters with bellows was published in the "Official Gazette of the RS", number 4/2024 of January 19, 2024, which enters into force on January 27, 2024, and begins to be applied from January 1, 2025.

This rulebook specifies in more detail the method and conditions of periodic and extraordinary verification (hereinafter: verification) of gas meters with bellows, the requirements that gas meters with bellows must meet during verification, as well as the method of determining the fulfillment of requirements for gas meters with bellows.

The Directorate for Measurements and Precious Metals (hereinafter: DMDM), Section for Length, Optical Quantities and Acoustics, plans to organize an inter-laboratory comparison (PT-scheme) in the area of length in the following period, subarea calibration of limit plane-parallel measures of length:

1. Calibration of limit plane-parallel measures of length.

All interested legal entities who wish to participate in the aforementioned comparison can submit a request/application on the form Request for issuing a report on interlaboratory comparison (https://www.dmdm.rs/sr/obrasci), to the address: Directorate for Measures and Precious Metals, 11000 Belgrade, Mike Alasa 14 or by email: This email address is being protected from spambots. You need JavaScript enabled to view it., no later than March 1, 2024.

DMDM, as a pilot laboratory, after collecting the applications, will agree with the participants on the technical protocol of the interlaboratory comparison and determine the start date of the mentioned activity.

Participating laboratories will be obliged to transport the artifact to the next laboratory participating in the interlaboratory comparison at their own expense and in accordance with the pre-agreed schedule from the technical protocol of the interlaboratory comparison.

For participation in the interlaboratory comparison, in accordance with the Law on Republic Administrative Fees, a republican administrative fee is paid, namely:

- request fee in the amount of RSD 380.00. Proof of payment of this fee shall be submitted with the request for issuing a report on interlaboratory comparison;

- fee for interlaboratory comparison, per working hour, in the total amount of RSD 40,200.00. This fee is paid after the application is submitted, based on the payment order submitted by the DMDM.

The stated amounts may be changed in the event of an amendment to the Law on Republic Administrative Fees.

The Rulebook on certification of automatic scales for measuring the mass of rail vehicles in motion was published in the "Official Gazette of RS", No. 115/2023 of December 22, 2023, which comes into force on December 30, 2023, and begins to be applied from January 1, 2025.

This regulation prescribes in more detail the method and conditions of periodic and extraordinary verification (hereinafter: verification) of automatic scales for measuring the mass of rail vehicles in motion (hereinafter: scales), the requirements that the scale must fulfill during verification, as well as the method of determining compliance requirements for scales.

The Rulebook on Certification of Automatic Dosing Scales was published in the "Official Gazette of RS", No. 115/2023 of December 22, 2023, which enters into force on December 30, 2023, and begins to be applied from January 1, 2025.  

This regulation prescribes in more detail the method and conditions of periodic and extraordinary verification (hereinafter: verification) of automatic dosing scales (hereinafter: scales), the requirements that the scale must meet during verification, as well as the method of determining the fulfillment of requirements for scales.

In Vrnjačka Banja, in the period from December 14 to 16, 2023, the Annual Meeting of employees of the Directorate for Measures and Precious Metals (hereinafter: DMDM) was held, where employees from all internal units of DMDM gathered, namely from: Belgrade, Novi Sad, Zrenjanin, Subotica, Niš, Kruševac and Užice.

On the first day, a meeting of all employees was held, at which Dejan Kovačević, mass metrologist, presented the proposals of the Group for Mass, Force and Pressure regarding amendments to the Law on Metrology.

At the meeting, the director of DMDM, Čedomir Belić, awarded individual awards for their contribution to the organization of the ceremonial academy on the occasion of marking the jubilee of 150 years of metrology in Serbia in the House of the National Assembly of the Republic of Serbia: Ana Gajić, employed at the workplace for analytical and professional-operational tasks and Jelena Orlović, employed at workplace for organizing metrological information in the Group for Information Technologies and Communication, Vanja Radojević Milošević, Head of the Department for Juridical, Human Resources, Professional Operating and Information Technology Affairs, Jasmina Pavlović, Head of the Group for Information Technologies and Communication, Slavica Simić, Head of the Group for Thermometry and Petar Veljić, Inspector II in the Group for Inspection Supervision of Items Made of Precious Metals. The director also awarded group awards for contribution to the preservation and development of the metrological system of Serbia to all organizational units in DMDM.

On the second day of the meetings, workshops were held where the DMDM work plan and program for 2024, as well as the Work Report for the previous 100 days, were created.

The Directorate for Measures and Precious Metals (hereinafter: DMDM), on December 20, 2023, hosted the students of the third year of basic academic studies, subject Production Technology and Metrology, Faculty of Mechanical Engineering, University of Belgrade.

During the visit to the DMDM, the students were introduced to the metrology system in the Republic of Serbia, the role of the DMDM as the national metrology institute of the Republic of Serbia in that system, the importance and method of ensuring metrological traceability to the international level, as well as the 150-year tradition of metrology in Serbia. Through promotional films, the beginnings of measurement in Serbia, the importance and role of DMDM, its competences, jobs and tasks in the field of metrology were presented.

The professional visit included a tour of the laboratories for mass, length and large volumes, where the students had the opportunity to get acquainted with the specific tasks and tasks of each laboratory, as well as with the national standards, which are kept, maintained and improved in those laboratories.

On December 7, 2023, the students of "Dragomir Markovic" Primary School in Krusevac, accompanied by chemistry professor Gorica Jokic, visited the Directorate for Measures and Precious Metals (hereinafter: DMDM) - Department for Metrological Inspection Krusevac.

The students were introduced to the role, importance and work performed by DMDM as a national metrology institute, the concept of measuring physical quantities, symbols and units of measurement, the importance of metrology for everyday life.

The visit continued with a tour of the laboratories, a discussion about measurements, benchmarks and measurement units. In the mass and length laboratory, the students were shown scales, sets of weights, wooden meters and measuring rods, and the testing and calibration procedures were explained.

DMDM employees explained to the students the importance of testing and certifying utility meters: water meters, electricity meters, gas meters and heat meters, as well as legal obligations and deadlines for certifying these meters, as well as the procedure for extraordinary inspection of meters in use.