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This European Standard specifies the relevant characteristics of geosynthetic barriers, including polymeric geosynthetic barriers, clay geosynthetic barriers and bituminous geosynthetic barriers, when used as fluid barriers in the construction of liquid waste disposal sites and in the construction of transfer stations and secondary containment for the storage of liquid waste on a waste disposal site only and the appropriate test methods to determine these characteristics. The intended use of these products is to control the leakage of fluids through the construction. This document is not applicable to geotextiles or geotextile-related products. This document provides for the evaluation of conformity of the product to this document. This document defines requirements to be met by manufacturers and distributors with regard to the presentation of product properties.