CSN EN ISO 12958-2

CSN EN ISO 12958-2 This document specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related product, using boundary materials and test conditions of interest. A standard series of test conditions are proposed, involving soil confinement, low hydraulic gradients, seating times and an array of normal loads.
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.