Volume 25, Issue 4 (July 1997)

    A Test Method to Determine the Relative Humidity Dependence of the Air Permeability of Woven Textile Fabrics

    (Received 23 September 1996; accepted 20 November 1996)

    CODEN: JTEOAD

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    Abstract

    This paper describes a test method used to determine the relative humidity dependence of the air permeability of hygroscopic woven textile fabrics. Changes in fabric structure as hygroscopic fibers swell at high humidities can have a large influence on the measured air permeability of materials such as cotton, wool, silk, and nylon fabrics. The method is sensitive enough to show sorption hysteresis effects in the relative humidity versus air permeability curve. The instrumentation also permits dynamic measurements during a step change in relative humidity. Typical results are shown for seven fabrics, covering a range of fiber hygroscopic properties and air permeabilities.


    Author Information:

    Gibson, PW
    U.S. Army Soldier Systems Command, Natick Research, Development, and Engineering Center, Natick, MA

    Elsaiid, AE
    U.S. Army Soldier Systems Command, Natick Research, Development, and Engineering Center, Natick, MA

    Kendrick, CE
    U.S. Army Soldier Systems Command, Natick Research, Development, and Engineering Center, Natick, MA

    Rivin, D
    U.S. Army Soldier Systems Command, Natick Research, Development, and Engineering Center, Natick, MA

    Charmchi, M
    University of Massachusetts at Lowell, Lowell, MA


    Stock #: JTE11878J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11878J

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    Title A Test Method to Determine the Relative Humidity Dependence of the Air Permeability of Woven Textile Fabrics
    Symposium , 0000-00-00
    Committee D13