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The General Conference on Weights and Measures ((フランス語:Conférence générale des poids et mesures) - CGPM) is the senior of the three Inter-governmental organizations established in 1875 under the terms of the Metre Convention ((フランス語:Convention du Mètre)) to represent the interests of member states. The treaty, which also set up two further bodies, the International Committee for Weights and Measures ((フランス語:Comité international des poids et mesures)- CIPM) and the International Bureau of Weights and Measures ((フランス語:Bureau international des poids et mesures) - BIPM), was drawn up to coordinate international metrology and to coordinate the development of the metric system. The conference meets in Sèvres (south-west of Paris) every four to six years. Initially it was only concerned with the kilogram and the metre, but in 1921 the scope of the treaty was extended to accommodate all physical measurements and hence all aspects of the metric system. In 1960 the 11th CGPM approved the ''Système International d'Unités'', usually known as "SI". ==Establishment== On 20 May 1875 an international treaty known as the ''Convention du Mètre'' (Metre Convention) was signed by 17 states. This treaty established the following organisations to conduct international activities relating to a uniform system for measurements:〔(【引用サイトリンク】The metre convention )〕 *Conférence générale des poids et mesures (CGPM), an intergovernmental conference of official delegates of member nations and the supreme authority for all actions; *Comité international des poids et mesures (CIPM), consisting of selected scientists and metrologists, which prepares and executes the decisions of the CGPM and is responsible for the supervision of the International Bureau of Weights and Measures; *Bureau international des poids et mesures (BIPM), a permanent laboratory and world centre of scientific metrology, the activities of which include the establishment of the basic standards and scales of the principal physical quantities and maintenance of the international prototype standards. The CGPM acts on behalf of the governments of its members. In so doing, it appoints members to the CIPM, receives reports from the CIPM which it passes on to the governments and national laboratories on member states, examines and where appropriate approves proposals from the CIPM in respect of changes to the International System of Units (SI), approves the budget for the BIPM (over €10 million in 2012) and it decides all major issues concerning the organization and development of the BIPM.〔(【引用サイトリンク】General Conference on Weights and Measures )〕〔(【引用サイトリンク】The BIPM headquarters )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「General Conference on Weights and Measures」の詳細全文を読む スポンサード リンク
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