The CMA humidity standard

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    10 Citations (Scopus)

    Abstract

    A two-temperature humidity generator has been developed at the Centre for Metrology and Accreditation (CMA) in order to have a reliable humidity standard. The system has been tested and the analysis of uncertainty has been carried out. The disturbance of the saturation equilibrium, the accuracy of temperature measurements, pressure differences, leaks, desorption and contamination have been investigated. The measurement range of the system is from -40 to +60°C with an uncertainty of less than ±0.25°C (k = 2). The system was found suitable to be used as the CMA humidity standard.

    Original languageEnglish
    Pages (from-to)183-188
    Number of pages6
    JournalMeasurement
    Volume17
    Issue number3
    DOIs
    Publication statusPublished - 1 Jan 1996
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Analysis of uncertainty
    • Dew-point
    • Humidity standard
    • Saturation

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