Resolution 6 of the 12th CGPM (1964)
The 12th Conférence Générale des Poids et Mesures (CGPM),
- abrogates the definition of the litre given in 1901 by the
- declares that the word "litre" may be employed as a special name for the cubic decimetre,
- recommends that the name litre should not be employed to give the results of high-accuracy volume measurements.