World Metrology Day took place in May 2023 with a theme of measurements supporting the global food system.
The theme was chosen because of the increasing challenges of climate change, and global distribution of food in a world whose population reached 8 billion at the end of 2022.
The World Metrology Day project was realised jointly by the BIPM (the international organisation established by the Metre Convention) and the OIML (the International Organisation of Legal Metrology).
World Metrology Day is an annual celebration of the signature of the Metre Convention on 20 May 1875 by representatives of seventeen nations. The Convention set the framework for global collaboration in the science of measurement and in its industrial, commercial and societal applications.
In the UK, the National Physical Laboratory (NPL) will be opening its historic Bushy House and gardens to the public with a day of science demonstrations, including the NPL’s popular liquid nitrogen show.
