World Metrology Day

May 20, Monday

World Metrology Day
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World Metrology Day is an event occurring on 20 May celebrating the International System of Units. The date is the anniversary of the signing of the Metre Convention in 1875.[1] Metrology is the study of measurement. The World Metrology Day project is currently realized jointly by the BIPM and the OIML.

World Metrology Day

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World Metrology Day in other years

World Metrology Day in other countries

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