Comparisons of some NIST fixed-point cells with similar cells of other standards laboratories

B. W. Mangum, E. R. Pfeiffer, G. F. Strouse, J. Valencia-Rodriguez, J. H. Lin, T. I. Yeh, P. Marcarino, R. Dematteis, Yang Liu, Q. Zhao, A. T. Ince, F. Çakiroĝlu, H. G. Nubbemeyer, H. J. Jung

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8 Citations (Scopus)

Abstract

In this paper we present results of international comparisons of fixed-point cells of some of the defining fixed-point materials of the International Temperature Scale of 1990. These comparisons involved cells from seven national laboratories, although in some cases only one type of fixed-point material was compared. Except for silver cells, the agreement among cells of the same defining fixed-point material from the various laboratories was to within 1 mK. The expanded uncertainties (k = 2) of the comparison measurements were 12 μK for Ga, 18 μK for H2O, 27 μK for Sn, 35 μK for In, 37 μK for Zn, 42 μK for Al, and 55 μK for Ag.
Original languageEnglish
Pages (from-to)215-225
Number of pages11
JournalMetrologia
Volume33
Issue number3
DOIs
Publication statusPublished - 1 Dec 1996
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering

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