Use of the quartz crystal thermometer for absolute temperature measurements

Abstract
Tests of a quartz crystal thermometer over a period of two years indicate that with yearly NBS calibration and appropriate weekly ice point and other calibration checks, it is a reliable secondary standard for absolutetemperature measurements. Over a range of at least 0–60°C it is accurate to better than 0.005°C and perhaps as good as 0.003°C. Descriptions are given of the absolute calibrations and of the tests for internal consistency of the quartz probes.

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