Resolution 6 of the 9th CGPM (1948)

Proposal for establishing a practical system of units of measurement

The Conférence Générale des Poids et Mesures (CGPM),


  • that the Comité International des Poids et Mesures (CIPM) has been requested by the International Union of Physics to adopt for international use a practical Système International d'Unités; that the International Union of Physics recommends the MKS system and one electric unit of the absolute practical system, but does not recommend that the CGS system be abandoned by physicists;

  • that the CGPM has itself received from the French Government a similar request, accompanied by a draft to be used as basis of discussion for the establishment of a complete specification of units of measurement;

instructs the CIPM:

  • to seek by an energetic, active, official enquiry the opinion of scientific, technical and educational circles of all countries (offering them, in fact, the French document as basis);
  • to gather and study the answers;

  • to make recommendations for a single practical system of units of measurement, suitable for adoption by all countries adhering to the Metre Convention.

DOI : 10.59161/CGPM1948RES6E

The reader should note that the official version of this Resolution is the French text

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