Abstract
The subrange inconsistency is a significant factor to uncertainty in the standard platinum resistance thermometer (SPRT) subranges of the International Temperature Scale of 1990 (ITS-90). This paper investigated the subrange inconsistency between the water–zinc and water–aluminum subranges. The calibration data for 60 SPRTs from four manufacturers were analyzed, and the result confirms that the coefficient c in the interpolation of ITS-90 is available to determine the subrange inconsistency in this temperature range again. The inconsistency, Δt, can be simply equal to 59.83c.
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Sun, J.P., Zhang, J.T., Kang, Z.R. et al. Investigating the Inconsistency of ITS-90 for SPRTs in the Subrange 0 °C to 419.527 °C . Int J Thermophys 31, 1789–1794 (2010). https://doi.org/10.1007/s10765-010-0835-4
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DOI: https://doi.org/10.1007/s10765-010-0835-4