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CCL: Consultative Committee for Length
CCL summary
General information
CCL members
CCL publications and bibliography
Mise en pratique for the definition of the metre
Presentation by Prof. Chung to the 23rd CGPM
CCL key comparison portfolio
CCL working groups
Photographs of the CCL
Key comparisons
DimVIM: Multilingual CMC classification scheme
Open access
CCL documents
CCL-CCTF documents
CCL-WG-MRA documents
Restricted access  
CCL working documents
CCL-CCTF documents
CCL-WG documents
CCL-WG-MRA documents
CCL-WG-N documents
CCL-WG-S documents
MePWG documents
WGDM documents
Direct access
in French: Comité consultatif des longueurs
The Consultative Committee for the Definition of the Metre (CCDM) was set up in 1952. Its name was changed to Consultative Committee for Length by the CIPM in 1997.

Present activities concern matters related to the definition and realization of the metre, practical length and angle measurement, and advice to the CIPM in the field of length metrology.

 
President
Dr A. Sacconi
Science Director 
Istituto Nazionale di Ricerca Metrologica 
Strada delle Cacce, 91 
I-10135  Turin 
ITALY 
 
 
Executive secretary
Dr L. Robertsson
Bureau International des Poids et Mesures 
Pavillon de Breteuil 
92312  Sèvres 
FRANCE 

Contact form:  
 
  Criteria for membership of the CCL
Directory of Consultative Committees

 
Meetings  
•  8 June 2010
Symposium "Challenges and Trends in Nanometrology", at A*STAR, Singapore

•  10 June 2010
Meeting of the CCL-WG-MRA (sWG-KC from 9:00 to 12:30 and sWG-CMC from 13:30 to15:15), at A*STAR, Singapore

•  10 June 2010
Meeting of the CCL-WG-N (15:30–18:00), at A*STAR, Singapore

•  10 June 2010
Meeting of the CCL-WG-S (evening), at A*STAR, Singapore

•  11 June 2010
Joint meeting of the CCL-WG-MRA, CCL-WG-N and CCL-WG-S, at A*STAR, Singapore