– the intergovernmental organization through which Member States act together
     on matters related to measurement science and measurement standards.
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International Committee for Weights and Measures (CIPM)

Download summary charts illustrating the CIPM membership over the years:

in English:
1875–1977
1978 – present

Former members of the CIPM include five Nobel prize winners:

Broglie, Louis de b.1892  d.1987
French physicist best known for his research on quantum theory and for his discovery of the wave nature of electrons. He was awarded the Nobel Prize for Physics 1929.
Michelson, A.A. b.1852  d.1931
German-born American physicist who established the speed of light as a fundamental constant and pursued other spectroscopic and metrological investigations. He received the Nobel Prize for Physics 1907.
Siegbahn, Manne b.1886  d.1978
Swedish physicist who was awarded the Nobel Prize for Physics 1924 for his discoveries and research in the field of x-ray spectroscopy.
Siegbahn, Kai M. b.1918  d.2007
Swedish physicist, son of Manne Siegbahn, corecipient with Nicolaas Bloembergen and Arthur Leonard Schawlow of the Nobel Prize for Physics 1981, for his contribution to the development of high-resolution electron spectroscopy.
Zeeman, Pieter b.1865  d.1943
Dutch physicist who shared with Hendrik A. Lorentz the Nobel Prize for Physics 1902 for his discovery of the Zeeman effect.

Presidents of the CIPM:

Since 1875 there have been fifteen Presidents of the CIPM. They are listed below in reverse chronological order.

Note that although members of the CIPM are elected as individuals, rather than representatives of Member States, the nationalities of the Presidents are indicated here for information.

CIPM presidency
B. Inglis (Australia)
2010–       
E.O. Göbel (Germany)
2004–2010
J. Kovalevsky (France)
1997–2004
D. Kind (Germany)
1984–1997
J.V. Dunworth (United Kingdom)
1976-1984
J.M. Otero (Spain)
1968-1976
L.E. Howlett (Canada)
1964-1968
R. Vieweg (Germany)
1960-1964
A. Danjon (France)
1954-1960
J.E. Sears (United Kingdom)
1946-1954
P. Zeeman (Netherlands)
1940-1943
V. Volterra (Italy)
1921-1940
R. Gautier (Switzerland)
1920-1921
W. Fœrster (Germany)
1891-1920
C. Ibañez de Ibero (Spain)
1875-1891

Secretaries of the CIPM:

Since 1875 there have been thirteen Secretaries of the CIPM. They are listed below in reverse chronological order.

Note that although members of the CIPM are elected as individuals, rather than representatives of Member States, the nationalities of the Secretaries are indicated here for information.

CIPM Secretary
J. McLaren (Canada)
2015–       
R. Kaarls (Netherlands)
2000–2015
W.R. Blevin (Australia)
1997-2000
J. Kovalevsky (France)
1990-1996
J. de Boer (Netherlands)
1962-1989
G. Cassinis (Italy)
1952-1962
M. Dehalu (Austria)
1946-1952
B. Cabrera (Spain)
1933-1941
D. Isaachsen (Norway)
1927-1933
L. Bodola (Hungary)
1923-1926
S. C. Hepites (Romania)
1918-1922
P. Blaserna (Italy)
1901-1918
A. Hirsch (Switzerland)
1875-1901

Vice-Presidents of the CIPM:

The position of Vice-President of the CIPM was introduced in 1952, and a second position of Vice-President was added in 1984.

Note that although members of the CIPM are elected as individuals, rather than representatives of Member States, the nationalities of the Vice-Presidents are indicated here for information.

CIPM vice-presidency
J. Ullrich (Germany)
2015–       
W.E. May (United States)
2010–       
J.W. McLaren (Canada)
2008–2015
B. Inglis (Australia)
2002–2010
G. Moscati (Brazil)
2001-2007
R. Van Koughnett (Canada)
2000-2002
K. Gebbie (United States)
1997-2000
K. Iizuka (Japan)
1995-2001
W.R. Blevin (Australia)
1992-1997
J. Skákala (Slovakia)
1984-1995
H. Preston-Thomas (Canada)
1984-1992
D. Kind (Germany)
1981-1984
B. Honti (Hungary)
1976-1981
J.V. Dunworth (United Kingdom)
1968-1976
J.M. Otero (Spain)
1964-1968
L.E. Howlett (Canada)
1960-1964
R. Vieweg (Germany)
1954-1960
E.C. Crittenden (United States)
1952-1954

Other former members include:

Bertrand, Joseph b.1822  d.1900
French mathematician and educator remembered for his elegant applications of differential equations to analytical mechanics, particularly in thermodynamics, and for his work on statistical probability and the theory of curves and surfaces.
Danjon, André-Louis b.1890  d.1967
French astronomer noted for his important developments in astronomical instruments and for his studies of the Earth's rotation.
Darboux, Jean Gaston b.1842  d.1917
French mathematician who made important contributions to geometry and analysis and after whom the Darboux integral is named.
de Haas, Wander Johannes b.1878  d.1960
Dutch physicist best known for the de Haas-van Alphen and Shubnikov-de Haas effects, descibing the quantum oscillations induced by a magnetic field, and the Einstein-de Haas effect, describing the rotation of a ferromagnetic material suspended in a magnetic field.
Dumas, Jean Baptiste André b.1800  d.1884
French chemist who pioneered in organic chemistry, particularly organic analysis.
Fabry, Charles b.1867  d.1945
French physicist specializing in optics, whose invention (with Perot) of the Fabry-Perot interferometer led him to discover the ozone layer in the upper atmosphere.
Ferraris, Galileo b.1847  d.1897
Italian physicist who established the principles of the induction motor, which is now the principal device for the conversion of electrical power to mechanical power.
Fredholm, Erik Ivar b.1866  d.1927
Swedish mathematician who founded modern integral equation theory.
Gill, Sir David b.1843  d.1914
Scottish astronomer known for his measurements of solar and stellar parallax, showing the distances of the Sun and other stars from Earth, and for his early use of photography in mapping the heavens.
Kennelly, Arthur Edwin b.1861  d.1939
American electrical engineer who made innovations in analytic methods in electronics, particularly the definitive application of complex-number theory to alternating-current circuits.
Mendeleev, Dmitri Ivanovich b.1834  d.1907
(also spelt Mendeleyev). Russian chemist who developed the periodic classification of the elements. In his final version of the periodic table (1871) he left gaps, foretelling that they would be filled by elements not then known and predicting the properties of three of those elements.
Vaïsälä, Yrjö b.1891  d.1971
Finnish meteorologist and astronomer noted for developing meteorological measuring methods and instruments.
Volterra, Vito b.1860  d.1940
Italian mathematician who strongly influenced the modern development of calculus.

Biographical details from Encyclopaedia Britannica
CIPM summary
General information
Consultative Committees
CIPM Sub-Committees and ad hoc Groups
CIPM publications
Strategic planning: BIPM and Consultative Committees
Joint Working Groups
CIPM election process
ad hoc Working Group on Governance
Members of the CIPM
CIPM Decisions and Recommendations
Photographs of the CIPM
Related articles
Selected biographies
Honorary members of the CIPM
History of the Pavillon de Breteuil