the intergovernmental organization through which Member States act together
on matters related to measurement science and measurement standards.
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History of the Pavillon de Breteuil
Selected pictures...
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View from the Trianon de Saint-Cloud
(© cliché Bibliothèque Nationale)
Other pictures
View from the banks of the Seine
Map of the Maison de Gondi
Portrait of Monsieur
Map of the magnificent house of Monsieur
View from the Trianon de Saint-Cloud
Eighteenth century plan
Portrait of the Abbé de Breteuil
Portrait of the Baron de Breteuil
The Pavillon d'Italie
Photo of the damaged Pavillon de Breteuil in 1870
Letter accepting the site in 1875
Plan in 1793
Trianon de Saint-Cloud
View of the Trianon de Saint-Cloud
Metrology area:
AUV
Metrology in the field of Acoustics, Ultrasound and Vibration
Committee structure (CCAUV)
Strategic plan
Units (SI Brochure)
International comparisons
Calibration and measurement capabilities (CMCs)
BIPM contact
EM
Metrology in the field of Electricity and Magnetism
Committee structure (CCEM)
Strategic plan
Units for electrical quantities
International comparisons
Calibration and measurement capabilities (CMCs)
BIPM laboratory work
Ongoing BIPM comparisons
BIPM calibrations of electrical standards
BIPM publications in the scientific literature
BIPM contact
L
Length Metrology
Committee structure (CCL)
Strategic plan
Unit of length (metre)
International comparisons
Calibration and measurement capabilities (CMCs)
Recommended values of standard frequencies
BIPM contact
M
Mass Metrology
Committee structure (CCM)
Strategic plan
Unit of mass (kilogram)
International comparisons
Calibration and measurement capabilities (CMCs)
BIPM laboratory work
Calibration services
BIPM publications in the scientific literature
BIPM contact
PR
Metrology in the field of Photometry and Radiometry
Committee structure (CCPR)
Strategic plan
Photometric units
International comparisons
Calibration and measurement capabilities (CMCs)
BIPM liaison and coordination work
BIPM contact
QM
Metrology in the field of Chemistry and Biology
Committee structure (CCQM)
Strategic plan
Unit for amount of substance (mole)
International comparisons
Calibration and measurement capabilities (CMCs)
BIPM laboratory work
Comparisons piloted by the BIPM
BIPM calibrations: National ozone standards
BIPM publications in the scientific literature
BIPM liaison and coordination work
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RI
Metrology in the field of Ionizing Radiation
Committee structure (CCRI)
Strategic plan
SI units
International comparisons
Calibration and measurement capabilities (CMCs)
International Reference System (SIR)
BIPM laboratory work
Ongoing BIPM comparisons
BIPM calibrations: Ionization chambers
BIPM publications in the scientific literature
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BIPM
BIPM liaison and coordination work
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T
Metrology in Thermometry
Committee structure (CCT)
Strategic plan
SI base unit (kelvin)
International comparisons
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TF
Time and Frequency Metrology
Committee structure (CCTF)
Strategic plan
What time is it?
Timescales
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Recommended values of standard frequencies
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BIPM calibrations for time transfer
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BIPM Annual Report on Time Activities
FTP server of the BIPM Time Department
Time Department Database
BIPM liaison and coordination work
BIPM contact
U
Measurement units: the International System (SI)
SI Brochure
SI base units
SI prefixes
Consultative Committee for Units (CCU)
BIPM liaison and coordination work
CODATA recommended values of the Fundamental Physical Constants
CODATA Task Group on Fundamental Constants
BIPM contact
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