CCT logo

Asset Publisher

Working Groups

Working Group Members

CCT Working Group for Contact Thermometry (CCT-WG-CTh)


Dr Christof Gaiser

Physikalisch-Technische Bundesanstalt


List of meetings

Meetings and related documents

Past Meeting

  • 13
  • May
  • 2024

Past Meeting

  • 03
  • April
  • 2023

Past Meeting

  • 12
  • May
  • 2022

Past Meeting

  • 01
  • December
  • 2020

Asset Publisher


Terms of reference

The terms of reference of WG-CTh are to review and document progress in contact thermometry, with a focus on thermodynamic temperature determination and defined scales. The list of tasks has been updated according to the discussions at the WG-SP meeting on 31 May 2017 and is given below.


  • reviewing and reporting on measurements of T – T90 and T – T2000;
  • recommending key comparisons in contact thermometry to the CCT;
  • reviewing the research and application of primary contact thermometers to realize the kelvin;
  • updating the Mise en Pratique of the definition of the kelvin;
  • updating the Guide to the Realization of the ITS-90;
  • reviewing novel contact thermometry techniques.