New capabilities for the realisation and the dissemination of the kelvin at high temperature in Europe

The Mise-en-Pratique for the recent redefinition of the kelvin has opened the possibility to directly disseminate the thermodynamic temperature by the mean of high-temperature fixed points whose thermodynamic temperature was assigned once and for all. These newly characterised fixed points offer to NMIs and DIs the possibility to perform a temperature scale directly linked to a thermodynamic temperature, without the complexity of an absolute measurement and without the need for extensive characterisation of the pyrometer performing the extrapolation. This article describes the various stages of the European project “Realising the redefined kelvin”, aimed at opening up these new possibilities to European laboratories.