It is used to test the permeability coefficient of geomembrane under water pressure, various types of geomembranes for waterproof performance, and can also test non-woven geotextiles or other materials as base materials, and use polyethylene, polyvinyl chloride, etc. as membrane materials. Permeability test of the non-woven composite geotextile under the specified water pressure difference.

SL235-2012