Intercomparison of copper fixed-point cells by using Pt/Pd thermocouples

F. Edler (Corresponding Author), M. Anagnostou, J. Bojkovski, S. Gaita, C. Garcia, E. Grudniewicz, F. Helgesen, J. Ivarsson, A. Pauza, P. Rosenkranz, M. Smid, T. Weckström, D. Zvizdic

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The objective of the EUROMET Project No. 844 in the field of thermometry was the intercomparison of the freezing temperatures of the copper fixed-point cells (t 90 = 1084.62°C) of the participating laboratories by using Pt/Pd thermocouples. For most of the 13 participating laboratories, agreement of the freezing temperatures of the different copper fixed points within ±0.06 K was found. Furthermore, the results of the intercomparison show that Pt/Pd thermocouples are suitable for use as transfer standards for the dissemination of temperatures and to approximate the ITS-90, at least up to the freezing point of copper.
Original languageEnglish
Pages (from-to)171-180
JournalInternational Journal of Thermophysics
Issue number1
Publication statusPublished - 2008
MoE publication typeA1 Journal article-refereed


  • Copper freezing point
  • Intercomparison
  • Platinum/palladium thermocouple


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