Geotextiles - Test method for the determination of the filtration behaviour of geotextiles under turbulent water flow conditions (ISO 10772:2012); German version EN ISO 10772:2012— 15 стр.
Geotextiles and geotextile-related products - Determination of the characteristic opening size (ISO 12956:2010); German version EN ISO 12956:2010— 18 стр.
Test method for the determination of the filtration behaviour of geotextiles under turbulent water flow conditions (ISO/DIS 10772:2010); German version prEN ISO 10772:2010