The Convention du Mètre of May 20, 1875 is an international treaty that established three organizations to oversee the keeping of metric standards. It is written in French, and called in English the Metre Convention, or, in the United States, the Meter Convention or Treaty of the Meter. It was revised at the 6th CGPM in 1921. In 1960, the system of units it established was renamed the Système international d'unités (SI) ("International System of Units").

The Convention created three main organizations:

• Conférence générale des poids et mesures (CGPM) - a meeting every four to six years of delegates from all member states;
• Bureau international des poids et mesures (BIPM) - an international metrology centre at Sèvres in France; and
• Comité international des poids et mesures (CIPM) - an administrative committee that meets annually at the BIPM.

Signatories

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There were originally 17 signatories to the treaty. This number grew to 21 in 1900, 32 in 1950, 44 by 1975, 48 by 1997, and 49 by 2001. As of 2005, there are 51 signatories (with year of accession in parentheses):

• Argentina (1877)
• Australia (1947)
• Austria (1875)
• Belgium (1875)
• Brazil (1921)
• Bulgaria (1911)
• Cameroon (1970)
• Canada (1907)
• Chile (1908)
• China (1977)
• Czech Republic (1922)
• Denmark (1875)
• Dominican Republic (1954)
• Egypt (1962)
• Finland (1923)
• France (1875)
• Germany (1875)
• Greece (2001)
• Hungary (1925)
• India (1957)
• Indonesia (1960)
• Iran (1975)
• Ireland (1925)
• Israel (1985)
• Italy (1875)
• Japan (1885)
• Korea (Democratic Republic of) ^* (1982)
• Korea (Republic of) ^* (1959)
• Malaysia (2001)
• Mexico (1890)
• The Netherlands (1929)
• New Zealand (1991)
• Norway (1875)
• Pakistan (1973)
• Poland (1925)
• Portugal (1876)
• Romania (1884)
• Russian Federation (1875)
• Serbia and Montenegro (1879)
• Singapore (1994)
• Slovakia (1922)
• South Africa (1964)
• Spain (1875)
• Sweden (1875)
• Switzerland (1875)
• Thailand (1912)
• Turkey (1875)
• United Kingdom (1884)
• United States (1878)
• Uruguay (1908)
• Venezuela (1879)

Several other states have associate status:

• Antigua and Barbuda (Through CARICOM, October 10, 2005)
• Barbados (Through CARICOM, October 10, 2005)
• Belarus (May 5, 2003)
• Belize (Through CARICOM, October 10, 2005)
• Costa Rica (January 29, 2004}
• Croatia (June 16, 2005)
• Cuba (December 19, 2000)
• Dominica (Through CARICOM, October 10, 2005)
• Ecuador (November 20, 2000)
• Estonia (January 27], 2005)
• Guyana (Through CARICOM, October 10, 2005)
• Grenada (Through CARICOM, October 10, 2005)
• Hong Kong (April 8, 2000)
• Jamaica (September 15, 2003)
• Kazakhstan (September 14, 2003)
• Kenya (September 24, 2002)
• Latvia (January 11, 2001)
• Lithuania (March 12, 2001)
• Malta (April 11, 2001)
• Panama (August 3. 2003)
• Philippines (June 1, 2002)
• Taiwan (April 26, 2002)
• Slovenia (June 2, 2003)
• Saint Kitts and Nevis (Through CARICOM, October 10, 2005)
• Saint Lucia (Through CARICOM, October 10, 2005)
• Saint Vincent and the Grenadines (Through CARICOM, October 10, 2005)
• Suriname (Through CARICOM, October 10, 2005)
• Trinidad and Tobago (Through CARICOM, October 10, 2005)
• Ukraine (August 19, 2002)
• Vietnam (October 10, 2003)

See also

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ISO 8601 defines 1875 as the year the Convention du Mètre was signed, by way of a reference date.

External links

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• http://www.bipm.fr/enus/1_Convention/foreword.html

measurement | Systems of units

Kenemglev ar metr | Meterkonvention | Convention du Mètre | 미터 조약 | Convention du Mètre | メートル条約 | Метрическая конвенция | Metrska konvencija | Meterkonventionen