PERMEABILITY APPARATUS FOR GEOTEXTILE-(MANUAL OBSERVATION)-(ASTM D4491, EN ISO 11058)-CONSTANT HEAD TEST-NO LOAD CONDITION

Comprises of Main working unit mounted on Table Top Bench with back support, Upper & Lower unit made of Transparent acrylic material, Geo‑textile specimen holder assembly between Upper & Lower unit, Inlet and outlet valves with PVC Pipe network, Head differential measurement arrangement mounted on a stand, Manual observation of quantity of flow (in case of Constant Head Test).