Abstract
There are several techniques available to generate humidity references by using stream of saturated gas with well-known water vapor content. Two-pressure humidity generator (2-P) is the most commonly used for the realization of temperature and relative humidity scales at National Institute for standards (NIS) and for disseminating traceability. This generator has been shown to be highly reproducible when properly used. In order to obtain traceable measurements and best performance, the temperature sensors and pressure gauges of this generator should be calibrated. This paper explained the calibration of 2-P temperature sensors and pressure gauges and the analysis of their performance for the first time at NIS.
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