International metrology organizations
The Convention of the Metre. Metre convention (BIPM)
The Convention of the Metre is a diplomatic treaty, signed by fifty-one nations that gives authority to the Conférence Générale des Poids et Mesures (CGPM), the Comité International des Poids et Mesures (CIPM) and the Bureau International des Poids et Mesures (BIPM), to act in matters of international metrology, particularly concerning the demand for measurement standards of steadily increasing accuracy, range and diversity; and the need to demonstrate equivalence between national measurement standards.
Euro-Asian Cooperation of National Metrology Institutions (COOMET)
COOMET is the regional organisation originally establishing co-operation of state metrology institutes of countries in the region of Central and Eastern Europe. It was founded in June, 1991 and renamed "Euro-Asian cooperation of state metrology institutions" in May, 2000 (for the purpose of encouraging participation in COOMET not only European, but also Asian countries). COOMET is open for any metrology institutions from other regions to join as associate members.
Legal metrology organisation
International Organisation for Legal Metrology (OIML)
Legal metrology is the entirety of the legislative, administrative and technical procedures established by, or by reference to public authorities, and implemented on their behalf in order to specify and to ensure, in a regulatory or contractual manner, the appropriate quality and credibility of measurements related to official controls, trade, health, safety and the environment.
European Cooperation in Legal Metrology (WELMEC)
WELMEC is the European cooperation in the field of legal metrology. Its Members are representative national authorities responsible for legal metrology in the European Union and European Free Trade Association (EFTA) member States.