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ISO 12958-2:2020
Geotextiles and geotextile-related products - Determination of water flow capacity in their plane - Part 2: Performance test
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.
International Organization for Standardization [iso]