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Working together to promote and advance the global comparability of measurements

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About us
About us
Benefits of participation
Benefits of participation
Governance
Governance
Our Mission and Objectives
Our Mission and Objectives
Historical information
Historical information
Coordination
Coordination
CIPM MRA
CIPM MRA
CIPM Forums
CIPM Forums
CIPM Consultative Committees
CIPM Consultative Committees
- Page CIPM Consultative Committees
- CCAUV
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- CCL
- CCM
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- CCU
Guides in Metrology Committee: JCGM
Guides in Metrology Committee: JCGM
International reference time scales
International reference time scales
Laboratory medicine: JCTLM
Laboratory medicine: JCTLM
Liaison
Liaison
Institutional liaisons
Institutional liaisons
CODATA-TGFC
Joint Committees
Joint Committees
NMI Directors and Member State Representatives
Regional metrology organizations
Regional metrology organizations
- Page Regional metrology organizations
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Technical/Scientific
Technical/Scientific
The SI
The SI
Technical areas of the BIPM
Technical areas of the BIPM
Publications & Events
Publications & Events
Publications
Publications
Metrology resources
Metrology resources
Events
Events

Metrology areas
AUV: Acoustics, Ultrasound and Vibrations

CCAUV

BIPM contact: Dr Gianna Panfilo

EM : Electricity and Magnetism

Metrologia: Focus on Metrology in Electricity and Magnetism

CCEM

BIPM contact: Dr Michael Stock

L: Length

CCL

BIPM contact: Dr Gianna Panfilo

M: Mass and related quantities

CCM

BIPM contact: Dr Hao Fang

PR: Photometry and Radiometry

QM: Chemistry and Biology

People

RI: Ionizing radiation

T: Thermometry

TF: Time and Frequency

CCTF

BIPM Time Department Database

Time FTP Server

BIPM contact: Dr Patrizia Tavella

U

CCU

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Metrology areas
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Metrology areas

AUV: Acoustics, Ultrasound and Vibrations
- CCAUV
- BIPM contact: Dr Gianna Panfilo
EM : Electricity and Magnetism
L: Length
- CCL
- BIPM contact: Dr Gianna Panfilo
M: Mass and related quantities
- CCM
- BIPM contact: Dr Hao Fang
PR: Photometry and Radiometry
QM: Chemistry and Biology
- People
RI: Ionizing radiation
T: Thermometry
TF: Time and Frequency
U
- CCU

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Metrology areas
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The 2018 revision of the SI
World Metrology Day
International Vocabulary of Metrology (VIM)
Metrologia
Guide to the Expression of Uncertainty in Measurement
Autres publications
- Resolutions of the CGPM
- Time FTP Server
Capacity Broadening & Knowledge Transfer (CBKT)
NMI Directors and Member State Representatives
- BIPM strategy document
- Toolbox: Benefits and how to participate
JCRB
tests
- Test URL
KCDB

/committees/cg/cgpm/6-1921

Asset Publisher

6th meeting of the CGPM

27 September to 6 October 1921

Meeting report

6th CGPM (1921)

Contact person

Céline Fellag Ariouet

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Asset Publisher

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