Various methods of determining the pemeability of textile fabrics to the passage of water vapour have been developed and described. An investigation was undertaken to compare the Canadian General Specifications Board (CGSB) Control Dish Method, the apparatus and method described by Farnworth and Dolhan (the DND Method) and two procedures from the American Society for Testing and Materials (ASTM) Method E96, and to determine the accuracy of the first two.
CAN2-4.2-M77 Method 49, Method for Test of Resistance of Materials to Water Vapor Diffusion (Control-Dish Method).
2.
Farnworth, B. and P.A. Dolhan. "Apparatus to Measure the Water-Vapour Resistance of Textiles," J. Test. Inst, (2):142-145 (1984).
3.
van Beest, C.A. and P. P.M.M. Wittgen. "A Simple Apparatus to Measure Water Vapor Resistance of Textiles," Textile Research Journal , p. 566-568, Sept. 1986.
4.
Watkins, D.A. and K. Slater. "The Moisture Vapour Permeability of Textile Fabrics," J. Text. Inst., (1):11-18 (1981).
5.
Fahmy, S.M.A. and K. Slater. "A New Apparatus to Measure the Resistance of Textiles to Water-Vapour Diffusion," J. Text. Inst., (7/8):273-276 (1976).
6.
Day, M. and P.Z. Sturgeon. "Water Vapor Transmission Rates Through Textile Materials as Measured by Differential Scanning Calorimetry," Textile Research Journal, p. 157-161, March 1986.
7.
ASTM Method E96-80, Standard Test Method for Water Vapor Transmission of Materials.
8.
Vander Beke, R. and L. Dekomnck. "New Developments in the Microporous Coating Field," Translation of Melliand Textilberiente, 67:824-829 (1986).
9.
Joy, F.A. and A.G. Wilson. "Standardization of the Dish Method for Measuring Water Vapor Transmission, National Research Council of Canada, Research Paper279, p. 263-270, January 1966.
10.
Farnworth, B., W.A. Lotens and P. P.M.M. Wittgen. "The Variations of Water Vapour Resistance of Microporous and Hydrophilic Films with Relative Humidity," Submitted for publication in the Textile Research Journal.
11.
Kennedy, J.E. and L.H. Turl. "The Measurement of the Resistance of Materials to Water Vapor Diffusion by the Control Dish Method," Defence Research Medical Laboratories Report No. 121-6 (1961).
