BIPM - CIPM, 1969

CIPM, 1969: Recommendation 1

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Summary

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Report of the CIPM ad hoc Working Group on Materials Metrology

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Common statement and declaration by the BIPM, OIML and ILAC on the relevance of various international agreements on metrology to trade, legislation and standardization

Joint statement by the CIPM and ILAC on the roles and responsibilities of national metrology institutes and national recognized accreditation bodies

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Direct access

Système International d'Unités, Rules for application of Resolution 12 of the 11th CGPM (1960)*

The Comité International des Poids et Mesures,

considering that Resolution 12 of the 11th Conférence Générale des Poids et Mesures (CGPM) (1960), concerning the Système International d'Unités, has provoked discussions on certain of its apsects,

declares

the base units, the supplementary units and the derived units of the Système International d'Unités, which form a coherent set, are denoted by the name "SI units";
the prefixes adopted by the CGPM for the formation of decimal multiples and submultiples of SI units are called "SI prefixes";

and recommends

the use of SI units and of their decimal multiples and submultiples whose names are formed by means of SI prefixes.

Note: The name "supplementary units", appearing in Resolution 12 of the 11th CGPM (and in the present Recommendation) is given to SI units for which the General Conference declines to state whether they are base units or derived units.

Reference:

Procès-Verbaux des Séances du CIPM (1969), p. 30

Metrologia, 1970, 6(2), 66

Note:

The 20th CGPM decided to abrogate the class of supplementary units in the SI (1995, Resolution 8).

The CIPM approved in 2001 a proposal of the CCU to clarify the definition of "SI units" and "units of the SI".