World Metrology Day 2025
We were pleased to mark World Metrology Day earlier this week, a celebration jointly organised by the International Bureau of Weights and Measures (BIPM) and the International Organization of Legal Metrology (OIML) in order to celebrate the anniversary of the signing of the Metre Convention on 20 May 1875. This Convention is widely recognised as the start of a formal international basis for transferable measurements, with the significance of the Metre Convention being demonstrated by UNESCO’s recent recognition of World Metrology Day as a UNESCO International Day.
The Aims of World Metrology Day are to:
- Promote the importance of metrology within specific sectors.
- Inspire discussions about the role of accurate measurements in achieving sustainability goals.
- Enhance awareness of the Metre Convention’s historical and future impact.
World Metrology Day 2025 – A Special Anniversary
This year marks the 150th anniversary of the Metre Convention, making World Metrology Day 2025 extra special. Events to celebrate the occasion were held in Paris and Versailles, including a high level symposium at UNESCO, Paris, and a scientific conference on the future of metrology in Versailles entitled “From units to the universe – future revolutions in metrology”.
Appropriately for this special anniversary, the theme of this year’s World Metrology Day is “Measurements for all times, for all people”. A joint message from the Directors of BIPM and OIML includes the following comments:
“To mark this auspicious occasion, in 2025 we are coming together as a global metrology community to celebrate what has been achieved over a century and a half, and to look forward to the opportunities and challenges that may lie ahead for the future of global measurement systems.
Measurement is fundamental to every aspect of our lives – from trading goods, to monitoring our health, and observing and understanding the world around us. The original signatories of the Metre Convention understood this and had a vision that was clear and ambitious: to unify and improve measurement systems worldwide, establishing a system that would serve “for all times, for all people.”
From its foundation in 1875, the BIPM has tackled significant technological challenges to produce stable and accurate standards for the metre and the kilogram that would be suitable for use around the world.
As the world around us evolves, so too must our measurement systems, ensuring they remain precise, universally accessible and capable of meeting the needs of future generations.
The challenge before us is clear: to build a measurement framework that not only keeps pace with scientific discovery but also serves all nations, equitably and reliably. This is our shared responsibility and our collective opportunity.”
Hiden Isochema and World Metrology Day
Hiden Isochema is proud to support World Metrology Day and our high accuracy sorption analyzers are widely used to perform measurements directly relevant to the global energy challenge.
Specifically, our sorption analyzers are used for the following energy related applications:
- Development and validation of carbon capture materials and techniques in order to reduce carbon dioxide emissions
- Characterization of membrane materials used in fuel cells and batteries
- Characterization of the hydrogen storage capacity and kinetics of solid-state materials for use of hydrogen as a renewable fuel
- Development of novel catalyst materials to reduce industrial energy consumption
- Evaluation of ionic liquids as green solvents and for use in gas separation applications
- Development of solutions to harness solar energy through sorption heat pumps
We carefully calibrate our instruments and verify the results of our conformance tests against standards in order to ensure that our sorption instruments may be relied on for accurate measurements. All calibrations are traceable to national standards, and for mass measurements, ultimately to the international prototype kilogram itself, housed at the BIPM.
