ISO 11058:2019
ISO 11058:2019 Geotextiles and geotextile-related products - Determination of water permeability characteristics normal to the plane, without load
standard by International Organization for Standardization, 06/01/2019
Full Description
ISO 11058:2019 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; and
b) the falling head method.