Standardization of guidelines for durability, terminology, identification, sampling, design, methods of determining the protective effectiveness of a geosynthetic, permeability to gases and fluids, and procedures for simulating damage under a geosynthetic coating, mechanical properties, hydraulic properties, general and specific requirements of geotextiles and related products. A geosynthetic is a product of which at least one of the constituents is based on synthetic or natural polymer, generally used in contact with the ground or other materials, in the fields of geotechnics and civil engineering.