The International System of Units (SI)

The International System of Units (SI)  The International System of Units (in French Le Systeme International d’Unites – abbreviated as SI) was established by the 11th General Conference on Weights and  Measures (CGPM from ConferenceGenerale des Poids at Measures ). The SI system  has seven base units  Prefixes in SI system  Multiple Prefix Symbol 10 -12  pico  p 10 -9 nano  n 10 -6  micro  µ 10 -3  milli  m