Résumé

The air permeability test method is based on the Kozeny equation. Weighed fibres (test specimen) are introduced in a measuring chamber with known volume. Air is passed through this test specimen. A scale indicating variations in permeability of air may be calibrated in appropriate absolute units of rate of flow or pressure difference and a table or graph is provided for conversion of the observed reading into values of mean diameter of the measured wool fibres.


Informations générales 

  • État actuel
     : Annulée
    Date de publication
     : 1976-11
  • Edition
     : 1
    Nombre de pages
     : 10
  • Comité technique
     : ISO/TC 38/SC 23 Fibres et fils
  • ICS
     :
    59.060.10 Fibres naturelles

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  2. Store
  3. Catalogue de normes
  4. TC
  5. ISO/TC 38/SC 23
  6. ISO 1136:1976