This European Standard specifies a method for measuring the steady-state liquid flow through a geosynthetic
barrier, used to contain liquids in long-term applications.
The test method and described apparatus allow the measurement of flows accurately down to 10-6 m3/m2/day.
In particular circumstances where testing indicates that values obtained for a geosynthetic barrier lie below the
threshold of sensitivity of this test method, then the value of liquid flow is declared as being less than
10-6 m3/m2/day.
Due to its long duration this test method is not suitable for production control testing.
Geosynthetic clay liners cannot be tested with this apparatus.
Diese Norm beschreibt eine Methode für die Durchflussmessung von Flüssigkeiten durch geosynthetische Dichtungsbahnen und deren Bewertung des Wasserdichtheitsgrades. Diese Testmethode und die beschriebene Prüfapparatur lässt eine Durchflussmessung von genau 10-7m3 je m2 und Tag zu.