Textile fabrics -- Determination of resistance to water penetration -- Hydrostatic pressure test

The information about the standard:

Designation standards: ISO 811:1981
Publication date standards: 1.9.1981
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard

Annotation of standard text ISO 811:1981 :

A specimen is subjected to a steadily increasing pressure of water on one face, under standard conditions, until penetration occurs in three places. The water pressure may be applied from below or from above the test specimen. The hydrostatic head supported by a fabric is a measure of the resistance to the passage of water through the fabric.