Italian National Agency for New Technologies, Energy and Sustainable Economic Development
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NATIONAL INSTITUTE OF IONIZING RADIATION METROLOGY

The International System of Units

A vision of the current SI

For a comprehensive and up-to-date description of the International System of Units, please refer to the BIPM pages at

http://www.bipm.org/fr/si/ for French

http://www.bipm.org/en/si/ for English

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