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CCT working groups
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The CCT has nine working groups and a task group, listed below. The Chairs are named individuals, and the formal members are the listed NMIs or RMOs – with, in some cases, additional experts and/or representatives of other groups. For the names of the delegates at the last meetings, please refer to the CC Directory.

| WG1 | WG2 | WG3 | WG4 | WG5 | WG6 | WG7 | WG8 | WG9 | TG-SI |

WG1 CCT Working Group 1: Defining fixed points and interpolating instruments
  • Chair: Dr D.C. Ripple, NIST
  • Members: INRIM, KRISS, LNE, NIM, NIST, NMIJ, NMi-VSL, NPL, PTB, VNIIM
  • Terms of reference
  • WG2 CCT Working Group 2: Secondary reference points and techniques for approximating the ITS-90
  • Chair: Mr H. Liedberg, NMISA
  • Members: CEM, CENAM, INRIM, KRISS, LNE, MSL, NIM, NIST, NMIJ, NMISA, PTB, UME
  • Terms of reference
  • WG3 CCT Working Group 3: Uncertainties access restricted to WG members
  • Chair: Mr D.R. White, MSL
  • Members: CEM, CENAM, INRIM, IPQ, LNE, MSL, NIM, NMIA, NMIJ, NMi-VSL, NIST, PTB, SMU, UME, VNIIM
  • Terms of reference
  • WG4 CCT Working Group 4: Thermodynamic temperature determinations and extension of the ITS-90 to lower temperatures
  • Chair: Dr J. Fischer, PTB
  • Members: INRIM, KRISS, LNE, MSL, NIM, NIST, NMIJ, NPL, NRC-INMS, PTB
  • Terms of reference
  • WG5 CCT Working Group 5: Radiation thermometry access restricted to WG members
  • Chair: Dr G. Machin, NPL
  • Members: INRIM, KRISS, LNE, MSL, NIM, NIST, NMC/A*STAR, NMIA, NMIJ, NMi-VSL, NPL, PTB, SMU, UME, VNIIM
  • Terms of reference
  • WG6 CCT Working Group 6: Humidity measurements access restricted to WG members
  • Chair: Dr S. Bell, NPL
  • Members: CENAM, INRIM, INTA, KRISS, LNE-CETIAT, MSL, NIM, NIST, NMIJ, NMi-VSL, NPL, PTB, NMC/A*STAR, UME, VNIIM, VNIIFTRI
  • Terms of reference
  • WG7 CCT Working Group 7: Key comparisons access restricted to WG members
  • Chair: Dr M. Ballico, NMIA
  • Members: Pilots of CCT-K1, CCT-K2, CCT-K3, CCT-K4, CCT-K5, CCT-K6, CCT-K7, Chair of CCT-WG3, KCDB Manager, INRIM, NMIA
  • Terms of reference
  • WG8 CCT Working Group 8: Calibration and measurement capabilities access restricted to WG members
  • Chair: Mr G.F. Strouse, NIST
  • Members: APMP, COOMET, EUROMET, SADCMET, SIM
  • Terms of reference
  • CMC review protocols
  • WG9 CCT Working Group 9: Thermophysical properties
  • Chair: Dr T. Baba, NMIJ
  • Members: CENAM, INRIM, KRISS, LNE, NIM, NIST, NMIJ, NPL, PTB, VNIIM
  • Terms of reference

  • TG-SI CCT TG-SI: Task Group on the SI access restricted to TG members
  • Chair: Dr J. Fischer, PTB
  • Members: INRIM, KRISS, LNE-INM/CNAM, MSL, NIM, NIST, NMIJ, NPL, NRC-INMS, VNIIM, the CCT President and CCT Executive Secretary
  • Terms of reference
  • Report submitted to the CIPM (2007)
  • Note on updating the definition of the kelvin


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