Intercomparison of Copper Fixed-Point Cells by Using Pt/Pd Thermocouples

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 o...

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Bibliographic Details
Published in:International journal of thermophysics 2008-02, Vol.29 (1), p.171-180
Main Authors: Edler, F., Anagnostou, M., Bojkovski, J., Gaita, S., García, C., Grudniewicz, E., Helgesen, F., Ivarsson, J., Pauza, A., Rosenkranz, P., Smid, M., Weckström, T., Zvizdic, D.
Format: Article
Language:English
Subjects:
Classical Mechanics
Condensed Matter Physics
Industrial Chemistry/Chemical Engineering
Physical Chemistry
Physics
Physics and Astronomy
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Summary: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.
ISSN:0195-928X
1572-9567
DOI:10.1007/s10765-007-0282-z