NF EN ISO 12958

Le présent document décrit une méthode d'essai permettant de déterminer la capacité de débit dans le plan des géotextiles. L'écoulement de l'eau est mesuré sous diverses contraintes normales en compression pour des gradients hydrauliques types.

This document specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related product. This document describes the in-plane water flow index test, only applicable to factory-assembled products. For the in-plane water flow performance test, see 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.