To celebrate the 150th anniversary of the Meter Convention, the International Bureau of Weights and Measures (BIPM) organized a series of events in Paris and Versailles on May 20, 21, and 22, 2025.

Roundtable at UNESCO

On May 20, a symposium was held at UNESCO. This event brought together representatives of states, national metrology institutes, international liaison organizations, as well as scientists and other metrology professionals.

In this context, Maguelonne Chambon led a roundtable discussion on future opportunities for the BIPM and global metrology in the context of the UNESCO International Decade of Sciences for Sustainable Development, 2024–2033.

Posters on key metrology challenges

On May 21 and 22, the BIPM organized a conference at the Palais des congrès in Versailles. This event aimed to highlight achievements in metrology since the creation of the BIPM and to recognize the crucial importance of measurement science in various aspects of daily life.

The conference also provided a vision for the future of metrology, exploring innovations that will shape the landscape in the coming decades.

In preparation for this event, a call for poster submissions on key metrology challenges was organized. Over 385 posters were received. French laboratories responded with 17 selected posters, one of which was highlighted to represent the Health theme: Chiara Giangrande's poster titled "Standardisation of Measurements of Neurodegenerative Disease Biomarkers: The NEuroBioStand Project", which was presented during the conference to represent the contributions of metrology in the field of health.

Posters presented by the RNMF laboratories are available on BIPM website

Fundamental Metrology

Olga KOZLOVA

Towards Practical Integrated Primary Thermometry with Photonic and Quantum Sensors in Europe

Laurent PITRE

Redefining Exactitude at LNE-Cnam: The Last and Most Accurate Boltzmann Constant Measurement

Wilfrid POIRIER

Back to the Ampere

Mathieu TAUPIN

The complementary electrostatic and quantum roads leading to the farad realization at LNE

Matthieu THOMAS

Mass metrology in the new SI at LNE

Environment and Climate

Anthony AUZERAIS

Field measurements of gaseous emissions in livestock buildings: A new approach using mass balance to improve accuracy

Gaëlle CAPITAINE

Outputs of the EMPIR project SapHTies: Metrology for standardised seawater pHT measurements in support of international and European climate strategies

Nathalie GUIGUES

The European Metrology Network for Pollution Monitoring – EMN POLMO

Nathalie GUIGUES

Novel approach for estimating measurement uncertainty of continuously water quality sensors in rivers: a French case study

Marc HIMBERT

Citizen metrology : a key challenging issue

Health

Chiara GIANGRANDE

Standardisation of Measurements of Neurodegenerative Disease Biomarkers: The NEuroBioStand Project

Amandine BOEUF

ProMET project: Fundamental protein metrology towards a better definition of the measurand

Vincent DELATOUR

The European Metrology Network TraceLabMed : coordinating activities of European NMIs/DIs and calibration laboratories in the field of laboratory Medicine

Energy

Bruno HAY

Recent developments for measuring high-temperature thermal diffusivity of advanced materials used for energy production

Industry

Vincent DELATOUR

The COMET Project : Manufacturing commutable calibrators and quality control materials for standardisation and post-market surveillance of IVD tests

Gael OBEIN

Beyond Photometry and Colorimetry: Towards a Comprehensive Metrology of Surface Appearance

Quantum Technologies

Félicien SCHOPFER

MetriQs-France, developing reference measurements for evaluation and standardization of quantum technologies