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Happy World Metrology Day – 20 May 2022

The theme this year is Metrology in the Digital Era. This theme was chosen because digital technology is revolutionizing our community and is one of the most exciting trends in society today. The adoption of digital technology is transforming metrology by improving processes and opening new opportunities.

World Metrology Day is an annual celebration of the signature of the Metre Convention on 20 May 1875 by representatives of seventeen nations, which marked the beginning of formal international collaboration in metrology. It is organized jointly by the Bureau International des Poids et Mesures (BIPM) and the International Organization of Legal Metrology (OIML) to recognize and celebrate the contribution of all the people that work in the field of metrology in intergovernmental and national metrology organizations and institutes throughout the year.

Further information on World Metrology Day, including video messages from the Directors of the two organizations, posters and a list of events, is available at: