Tag international system of units
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20th of May - The World Metrology Day 2019 – improving the International System of Units
On November 16th, 2018, during the XXVI General Conference of Measures, probably one of the most important changes in the International System of Units (SI) has been agreed since its inception. New definitions of basic units of measurement were adopted, which will become effective on May 20.
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World Metrology Day 20 May 2018