Geomembrane tank systems According to Dutch CUR/PBV Recommendation 44(fourth revision) a geomembrane tank system is a tank construction employing geomembranes, including transport, drainage and separation installations. The geomembrane may be a film of high density polythene (PE-HD), low density polythene, or plasticised polyvinyl chloride (PVC-P). Inspection Under CUR/PBV Recommendation 44(fourth revision), the liquid tightness of a geomembrane tank system must be demonstrated by means of a visual inspection covering the visible parts of the geomembrane tank system and the completion of a geo-electric measurement. For the purposes of this test, electrical energy is introduced to the water-bearing soil layer outside the geomembrane tank system using at least two measuring points. A grid of sensors is installed within the geomembrane tank system. Where these sensors detect energy from outside the geomembrane tank system, a leak may be suspected. A report will be drawn up on the basis of the completed inspection, setting out the inspection findings. Procedure The procedure leading to the issue of a Liquid-tight Facility Declaration is as described under Floor - Wall - Hard Surfacing.

© 2010 QSBV / YellowMind BV