- International Bureau of Weights and Measures
The International Bureau of Weights and Measures (Bureau international des poids et mesures, in French), is an international
standards organization, one of three such organizations established to maintain the International System of Units ( SI) under the terms of the " Convention du Mètre" (Metre Convention). The organization is usually referred to by its French abbreviation, BIPM.
The other organisations which maintain the SI system are the
General Conference on Weights and Measures(CGPM, Conférence générale des poids et mesures) and the International Committee for Weights and Measures(CIPM, Comité international des poids et mesures).
The BIPM is based at the
Pavillon de Breteuilin Sèvres, France, where it enjoys extraterritorial status. As such, it escaped German occupation during World War II.Fact|date=October 2008
The BIPM helps to ensure uniformity of SI weights and measures around the world. It does this with the authority of the
Convention du Mètre, a diplomatic treatybetween fifty-one nations (as of|2008|8|lc=on), and it operates through a series of Consultative Committees, whose members are the national metrologylaboratories of the Member States of the Convention, and through its own laboratory work.
The BIPM carries out measurement-related research. It takes part in, and organises, international comparisons of national measurement standards, and it carries out calibrations for member states.
The BIPM has an important role in maintaining accurate worldwide time of day. It combines, analyzes, and averages the official atomic time standards of member nations around the world to create a single, official
Coordinated Universal Time(UTC).
Institute for Reference Materials and Measurements(IRMM)
International System of Units(SI)
International Organization for Standardization(ISO)
National Institute of Standards and Technology(NIST)
Coordinated Universal Time
* [http://www.bipm.org/en/home/ BIPM website]
Wikimedia Foundation. 2010.
Look at other dictionaries:
International Bureau of Weights and Measures — ▪ international organization French Bureau International des Poids et Mesures international organization founded to bring about the unification of measurement systems (measurement system), to establish and preserve fundamental… … Universalium
International Committee for Weights and Measures — The Interglobal Committee for Weights and Measures (ICWM) is the English name of the Comité international des poids et mesures (CIPM, sometimes written in English Comité International des Poids et Mesures). It consists of eighteen persons from… … Wikipedia
General Conference on Weights and Measures — The General Conference on Weights and Measures is the English name of the Conférence générale des poids et mesures (CGPM, never GCWM). It is one of the three organizations established to maintain the International System of Units (SI) under the… … Wikipedia
International Atomic Time — ( [http://www.bipm.org/en/scientific/tai/tai.html TAI] , from the French name Temps Atomique International) is a high precision atomic time standard that tracks proper time on Earth s geoid. It is the principal realisation of Terrestrial Time,… … Wikipedia
International System of Units — SI redirects here. For other uses, see Si (disambiguation). Cover of brochure The International System of Units The International System of Units (abbreviated SI from French: Système international d unités) is the modern … Wikipedia
International System of Units — an internationally accepted coherent system of physical units, derived from the MKSA system, using the meter, kilogram, second, ampere, kelvin, mole, and candela as the basic units (SI units) of the fundamental quantities length, mass, time,… … Universalium
International Time Bureau — The Bureau International de l Heure (BIH) or the International Time Bureau, seated at the Paris Observatory, was the international bureau responsible for combining different measurements of Universal Time. The bureau also played an important role … Wikipedia
International Prototype Meter — right|thumb|220px|Historical International Prototype Meter bar, made of an alloy of platinum and iridium, that was the standard from 1889 to 1960.The meter was originally defined as one ten millionth of the distance between the North Pole and the … Wikipedia
Bureau of Standards — since 1988 U.S. National Institute of Standards and Technology (NIST) Agency of the U.S. Department of Commerce responsible for the standardization of weights and measures, timekeeping, and navigation. Active since at least the mid 19th century,… … Universalium
National Institute of Standards and Technology — NIST redirects here. For other uses, see NIST (disambiguation). National Institute of Standards and Technology Agency overview Headquarters Gaithersburg, Maryland … Wikipedia