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Realization of the ITS-90 at IMGC in the range of long stem PRTS

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Measurement Techniques Aims and scope

Abstract

IMGC has established the fixed points required by the International Temperature Scale of 1990 (ITS-90) for long-stem platinum resistance thermometers (PRTs) at the highest accuracy level. The present paper describes the fixed point apparatus and the measuring procedures used at IMGC for the accurate realization of each fixed point, and gives some data on the typical phase transitions thereby obtained. Moreover, since IMGC has developed both traditional and sealed cells for the realization of the freesing or melting points of metals, the different types of cells and the procedure used for their construction and preparation are also supplied. Finally, the reproducibilities of the freezing points of Sn, Zn, Al, and Ag were evaluated by means of several determinatiaons with one standard thermometer.

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References

  1. G. Bonnier, BNM Bulletin, October, 14 (1985).

  2. P. Marcarino, R. Dematteis, and V. Fernicola, IMGC Report S 242, November (1985).

  3. G. T. Furukawa, et al., NBS Special Publication 260-77, August (1982).

  4. G. Bongiovanni, G. Frassineti, and P. Marcarino, Atti XXXIV Congresso Nazionale ATI, Associ azione Termotecnica Italiana (1979), p. 233.

  5. M. V. Chattle, et al., in: Temperature: Its Measurement and Control in Science and Industry, J. F. Schooley (ed.), Vol. 5, American Institute of Physics, New York (1982), p. 311.

    Google Scholar 

  6. M. V. Chattle, et al., Metrologiya,23, 153 (1986)/87).

    Google Scholar 

  7. G. Bongiovanni, L. Crovini, and P. Marcarino, High Temp. — High Press,4, 573 (1972).

    Google Scholar 

  8. G. Bongiovannie, P. Marcarino, L. Crovini, Metrologiya,11, 125 (1975).

    Google Scholar 

  9. L. Crovini, P. Marcarino, High Temp. — High Press,23 (1991).

  10. P. Marcarino, R. Dematteis, B. Fernicola, IMGC Report S/267, August (1989).

  11. P. Marcarino et al., in: Temperature: Its Measurement and Control in Science and Industry, J. F. Schooley (ed.), Vol. 6 (1992).

  12. L. Crovini, P. Marcarino, and T. Ricolfi, Atti Convegno: I risultati del Progetto Strategico Strumentazione, CNR, November (1989), p. 7.

  13. Supplementary Information for the ITS-90, BIMP, December (1990).

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Authors and Affiliations

  1. CNR-Instituto di Metrologia “G. Colonnetti,” Strada delle Cacce 73, 10135, Torino, Italia

    P. Marcarino & R. Dematteis

Authors
  1. P. Marcarino
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  2. R. Dematteis
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Translated from Izmeritel'naya Tekhnika, No. 12, 58–62, December, 1993.

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Marcarino, P., Dematteis, R. Realization of the ITS-90 at IMGC in the range of long stem PRTS. Meas Tech 36, 1406–1414 (1993). https://doi.org/10.1007/BF00978272

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