Terms of reference
The terms of reference of CCT-WG1 are to improve and document the techniques for using defining fixed points and interpolating instruments of the ITS-90 and to supervise the dissemination of the SI unit of temperature through the
mise en pratique for the definition of the kelvin.
Working Group 1 is tasked to continue with the updates to the Supplementary Information for the ITS-90, collaborating with Working Group 3 and Working Group 5 in the incorporation of material on uncertainties.
Working Group 1 also coordinates a task group (including a representative from Working Groups 2, 3, 4 and 5, and the BIPM) that:
monitors developments supporting a future International Temperature Scale;
prepares and maintains the mise en pratique for the definition of the kelvin;
monitors research conducted to support the mise en pratique and future temperature scales; and
coordinates the presentation of CCT material on the dissemination of the kelvin by the BIPM.
CCT summary
