Resolution 10 of the 15th CGPM (1975)
SI prefixes peta and exa
The 15th Conférence Générale des Poids et Mesures (CGPM),
decides to add to the list of SI prefixes to be used for multiples,which was adopted by the
DOI : 10.59161/CGPM1975RES10EFrench text
New prefixes were added by the 19th CGPM in 1991 (Resolution 4).