Fixed points as part of the KT-500 and KT-650 temperature calibrators
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The results of a measurement of the indium, tin, and zinc fixed points in the KT-500 and KT-650 temperature calibrators are presented. It is shown that the error in reproducing the temperature does not exceed 0.003°C for indium and tin and 0.014°C for zinc. It is concluded that it is possible to use these points to check second-class and third-class standard resistance thermometers.
Key wordsfixed point ITS-90 temperature calibrator
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