The Comité international des poids et mesures (CIPM, written in English Comité International des Poids et Mesures or International Committee for Weights and Measures) consists of eighteen persons from Member States of the Convention du Mètre (Metre Convention). Its principal task is to ensure world-wide uniformity in units of measurement and it does this by direct action or by submitting proposals to the CGPM. The Convention du Mètre of May 20, 1875 is an international treaty that established what is now known as the SI system of units. ... Disparate systems of units of measurement used to be very common. ... The Conférence générale des poids et mesures (General Conference on Weights and Measures or CGPM) is one of the three organizations established to maintain the SI system under the terms of the Metre Convention (1875). ...
A recent focus area of the CIPM has been the establishment of the CIPM Arrangement de reconnaissance mutuelle (Mutual Recognition Arrangement, MRA) which serves as the framework for the mutual acceptance of measurements performed in the Member States of the Metre Convention.
The CIPM meets annually at the BIPM, and discusses reports presented to it by its Consultative Committees. It issues an Annual Report on the administrative and financial position of the BIPM to the governments of the Member States of the Metre Convention. The Bureau International des Poids et Mesures (International Bureau of Weights and Measures, or BIPM) is a standards organization, one of the three organizations established to maintain the SI system under the terms of the Metre Convention. ...
Of the metric units international definitions have been stated as follows: (a) The unit of volume for determinations of a high degree of accuracy is the volume occupied by the mass of 1 kilogram of pure water at its maximum density and under the normal atmospheric pressure; this volume is called litre.
The two standards, the cubic inch and the cubic decimetre, may not be strictly comparable owing to a difference in the normal temperature (Centigrade and Fahrenheit scales) of the two units of extension, the metre and the yard.
The value of this intensity is equal to that of the force of gravity at the Bureau International, Paris (at the level of the Bureau), divided by 1.000332; a co-efficient which allows for theoretical reduction to the latitude 45° and to the level of the sea.
The CIPM meets annually at the International Bureau of Weights and Measures (BIPM, Bureau internationaldespoidsetmesures), and discusses reports presented to it by its Consultative Committees.
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