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Draft B Report of Bilateral Key Comparison SIM.T-K6.2 on Humidity Standards In the Dew/Frost-point Temperature Range from -20 °C to 20 °C



Christopher W. Meyer, Peter H. Huang, Enrique Martines-Lopez, Edgar Mendez-Lango, Jesus Davila Pacheco


A Regional Metrology Organization (RMO) Key Comparison of dew/frost point temperatures TDP/FP was carried out by NIST and the Centro Nacional de Metrologia (CENAM, México) between July, 2008 and December, 2008. This report presents the results of this comparison. It describes the humidity laboratory standards for NIST and for CENAM and provides the uncertainty budget for these standards. The 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 CENAM.


frost point, bilateral, comparison, humidity, dew point
Created September 26, 2014, Updated November 10, 2018