本文件规定了测量通过土工合成材料的稳态液体流量的方法 屏障，长期使用时用于盛装液体。 试验方法和所述仪器允许精确测量流量，精确到10–6m3/m2/天。在测试表明土工合成屏障获得的数值低于本测试方法灵敏度阈值的特殊情况下，则宣布液体流量值小于10–6m3/m2/天。 由于其持续时间较长，该试验方法不适用于生产控制试验。 粘土土工合成屏障不能用这种仪器进行测试。交叉引用:ISO 5813EN 25813购买本文件时可获得的所有现行修订均包含在购买本文件中。

This document 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 10–6m3/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 than10–6m3/m2/day. Due to its long duration, this test method is not suitable for production control testing. Clay geosynthetic barriers cannot be tested with this apparatus.Cross References:ISO 5813EN 25813All current amendments available at time of purchase are included with the purchase of this document.