ISO 11058
Geotextiles and geotextile-related products — Determination of water permeability characteristics normal to the plane, without load
Organization: | ISO |
Publication Date: | 1 April 2010 |
Status: | inactive |
Page Count: | 22 |
ICS Code (Geotextiles): | 59.080.70 |
scope:
This International Standard specifies two test methods for determining the water permeability characteristics of a single layer of geotextile or geotextile-related product normal to the plane:
a) the constant head method;
b) the falling head method.
NOTE If the full permeability characteristics of the geotextile or geotextile-related product have previously been established, then for control purposes it can be sufficient to determine the velocity index at a head loss of 50 mm only.