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CCL working groups
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Mise en pratique for the definition of the metre
CCL key comparison portfolio
Presentation by Prof. Chung to the 23rd CGPM
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DimVIM: Multilingual CMC classification scheme
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CCL-CCTF documents
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Where access is restricted to working group members, a username and password are required.


CCL-CCTF Frequency Standards Working Group access restricted to WG members
     (joint chairs: Dr F. Riehle, PTB, and P. Gill, NPL)
CCL Working Group on Dimensional Metrology (WGDM) access restricted to WG members
     (chair: Dr R. Thalmann, METAS)
  • Discussion groups:
  • DG2/3: Gauge blocks (R. Thalmann, METAS; A. Lewis, NPL)
    DG4: Angle (O. Kruger, NMISA)
    DG5: Diameter (J. Stone, NIST)
    DG6: CMM (O. Jusko, PTB)
    DG7: Nanometrology (G. Wilkening, PTB)
    DG8: Thermal expansion (H. Matsumoto, NMIJ)
    DG9: Line scales (H. Bosse, PTB)
    DGx: Surface texture
  • DimVIM - CMC classification scheme (multiple languages)


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