本欧洲标准描述了一种指数测试方法，其涵盖了使用柔性壁渗透仪在恒定头部的饱和粘土土工合成屏障（GBR-C）样品的实验室测量水通量。 本试验方法适用于不附加密封层的GBR-C产品。 该测试方法提供了可用于制造质量控制的规定条件下的通量测量。测试方法也可用于检查一致性。 使用该测试方法确定的通量值不被认为是代表GBR-C的在役通量

This European Standard describes an index test method that covers laboratory measurement of water flux through saturated clay geosynthetic barrier (GBR-C) specimens using a flexible wall permeameter at constant head. This test method is applicable to GBR-C products with no additional sealing layers attached. This test method provides a measurement of flux under a prescribed set of conditions that can be used for manufacturing quality control. The test method can also be used to check conformance. The flux value determined using this test method is not considered to be representative of the in-service flux of a GBR-C.