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Publication Citation: Standard Platinum Resistance Thermometer Calibrations from the Ar TP to the Ag FP

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Author(s): Gregory F. Strouse;
Title: Standard Platinum Resistance Thermometer Calibrations from the Ar TP to the Ag FP
Published: December 19, 2007
Abstract: The National Institute of Standards and Technology (NIST) is in charge of realizing, maintaining, and disseminating the international Scale of 1990 (ITS-90). The Standard Platinum Resistance Thermometer (SPRT) Calibration Laboratory of the NIST Thermometry Group realizes the ITS-90 from the argon triple point (Ar TP, 189.3442 °C) to the silver freezing point (Ag FP, 961.78 °C) for the calibration of SPRTs. This special publication describes the calibration services, methods, measurement assurance, and uncertainties for the NIST ITS-90 calibration SPRTs.
Citation: NIST SP - 250-81
Keywords: Fixed-point cells, International Temperature Scale of 1990, ITS-90, Standard Platinum Resistance Thermometer, SPRT, SPRT Cal.
Research Areas: Thermometry
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