On 20 May 2026, the Metrology Institute of the Republic of Slovenia organized the World Metrology Day event in Portorož. The occasion commemorates the signing of the historic international agreement known as the Metre Convention, concluded in Paris in 1875.
The aim of this year’s event was to raise public awareness of the fundamental role of measurement in supporting science, industry, and policymaking. The theme of the event, “Reliable Measurements Are the Foundation of Effective Policies,” highlighted the connection between metrology and evidence-based governance. Measurement is the basis of informed decision-making. From trade and innovation to public health and emerging technologies, reliable measurement provides the evidence upon which sound policies—and public trust—are built.
Participants were welcomed by Marko Lotrič, President of the National Council of the Republic of Slovenia, who emphasized:
“Today, we face challenges that transcend national borders: digitalization, artificial intelligence, cybersecurity, the transition to green energy, and new measurement and monitoring technologies. All of these developments require metrology systems to remain reliable, traceable, and resilient, while also being flexible enough to keep pace with rapid progress. At the national level, our task is to understand these changes in a timely manner, translate them into practice, and ensure that they benefit people, the economy, and society as a whole.”
At World Metrology Day 2026, experts from a wide range of fields shared their practical expertise in metrology. Among them was Associate Professor Dr Tea Zuliani of the Jožef Stefan Institute, who presented a current topic in food safety metrology within the framework of the circular economy: targeted and screening methods for contaminants in food and packaging.
She introduced the activities of the ScreenFood project (Metrology for Food Safety in the Circular Economy: Targeted and Screening Methods for Contaminants in Food and Recycled Packaging, Industry Programme, Project No. 23IND13), in which the Laboratory of the Institute of Olive Culture of ZRS Koper is also involved. Dr Erika Bešter attended the event on behalf of the Institute of Olive Culture of ZRS Koper.
The event provided an excellent opportunity to strengthen cooperation, exchange experiences, and reflect on future challenges. It also encouraged discussion on how metrology can continue to reinforce trust—trust in measurements, institutions, decisions, and the policies that shape our everyday lives.


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