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Final report on EURAMET.T-K3.5: bilateral comparison of SPRT calibration at the ITS-90 fixed points of Ar, Hg, H2O, Ga, In, Sn, Zn and Al

A. Peruzzi, C. Bruin-Barendregt, R. Bosma and R. Senn, “Final report on EURAMET.T-K3.5: bilateral comparison  of SPRT calibration at the ITS-90 fixed points of Ar, Hg, H2O, Ga, In, Sn, Zn and Al”, Metrologia 51 03001 DOI 10.1088/0026-1394/51/1A/03001 (2014).

Abstract:
ROTH+CO. AG (Switzerland) was designated by METAS for participation in the MRA in the field of thermometry. To demonstrate its technical competence, ROTH+CO. AG asked VSL (the Netherlands) for a bilateral comparison of SPRT calibration at the ITS-90 fixed points of Ar, Hg, H2O, Ga, In, Sn, Zn and Al. The comparison, designated as EURAMET.T-K3.5, was initiated in February 2013 (with the preparation of the technical protocol) and completed in July 2014 (with the CCT approval of the final report). The results showed a satisfactory degree of equivalence between VSL and ROTH+CO. AG, and were successfully linked to comparisons. As a consequence, ROTH+CO. AG is now able to support CMCs for the services covered by this comparison and publish them in the KCDB.

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For more information contact aperuzzi@vsl.nl