SI
The International System of Units
Defines the seven base units and their 2019 redefinitions based on fixed fundamental constants. The universal measurement system mandated by international trade. See metrology domain for full entry.
- Document
- SI Brochure (9th Edition, 2019)
- URL
- https://www.bipm.org/en/publications/si-brochure
- Label
- Standard
- Keywords
- SI units base units measurement system fundamental constants metrology international trade
Domain: Typography · Standard