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Bilateral Key Comparison SIM.T-K6.5 on Humidity Standards in the Dew/Frost-Point Temperature Range from –30 °C TO +20 °C



Christopher W. Meyer, Adrian Solano


A Regional Metrology Organization (RMO) Key Comparison of dew/frost point temperatures was carried out by the National Institute of Standards and Technology (NIST, USA) and the Laboratorio Costarricense de Metrología (LACOMET, Costa Rica) between February, 2015 and August, 2015. The results of this comparison are reported here, along with descriptions of the humidity laboratory standards for NIST and LACOMET and the uncertainty budget for these standards. This report also describes the protocol for the comparison and presents the data acquired. The results are analyzed, determining degree of equivalence between the dew/frost-point standards of NIST and LACOMET.


Comparison, Humidity, Dew Point, Frost Point, Degree of Equivalence.
Created May 19, 2016, Updated November 10, 2018