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Draft B Report of Bilateral Key Comparison SIM.T-K6.3 on Humidity Standards in the Dew/Frost-point Temperature Range from -30 °C to 20 °C



Christopher W. Meyer, Peter H. Huang, Julio Brionizio


A Regional Metrology Organization (RMO) Key Comparison of dew/frost point temperatures TDP/FP was carried out by NIST and the Instituto Nacional de Metrologia, Qualidade e Tecnologia (INMETRO, Brazil) between October, 2009 and March, 2010. This report presents the results of this comparison. It describes the humidity laboratory standards for NIST and for INMETRO 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 INMETRO.
Tech. Supplement


frost point, bilateral, comparison, humidity, dew point
Created November 4, 2014, Updated November 10, 2018