This document 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.
                WITHDRAWN
                                    SRPS EN ISO 11058:2012
                            
                    PUBLISHED
                    SRPS EN ISO 11058:2019
                    60.60
                                        Standard published
                    Jul 31, 2019