ThermoSI contributed to a summer school ‘Contemporary issues in primary thermometry’ held in Santander, Spain, from May 13^th to 15^th 2026. The symposium was organized under the framework of the European Partnership Research Project ‘Dissemination of the redefined kelvin (DireK-T)’. From ThermoSI, presentations were given on practical Johnson noise thermometry (including a live demonstration of the prototype unit), and a lecture on future thermodynamic temperature traceability.

The event addressed current challenges and developments in thermodynamic temperature realization and dissemination following the kelvin redefinition. The program included lectures and practical sessions on gas-based methods, Johnson noise, Doppler broadening, and emerging quantum techniques, as well as fundamentals of temperature metrology.

It was attended by metrologists from NMIs, calibration laboratories, and also industrial/academic researchers requiring precision thermodynamic temperature measurements.