A new interpolation equation in the ITS-90 subrange from the triple point of water to the freezing point of indium
Kang Lan,
Lide Fang,
Ying Wang
et al.
Abstract:For all the subranges above 0.01 ℃, other than the interpolation between the triple point of water (TPW) to the melting point of gallium, temperatures on the ITS-90 are specified without the melting point of gallium. This study suggests a new interpolation equation in the subrange from the triple point of water to the freezing point of indium which is a polynomial of fractional third order with two coefficients to be determined by the measuring values of standard platinum resistance thermometers (SPRTs)’ resis… Show more
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