scope:

This document specifies the characteristics of geosynthetic barriers, including polymeric geosynthetic barriers, clay geosynthetic barriers and bituminous geosynthetic barriers, when used as fluid barriers and separation layer for water, in the construction of reservoirs and dams, and the appropriate test methods to determine these characteristics.

The intended use of these products is to control the leakage of potable, fresh or saline water through the construction.

This document is not applicable to geotextiles or geotextile-related products, as defined in EN ISO 10318‑1.

This document provides for the assessment and verification of constancy of performance (AVCP) of the product to this European Standard including factory production control procedures.

This document defines characteristics to be considered with regard to the presentation of performance.

NOTE Where potable water is or can be in direct contact with the product, other relevant standards, requirements and/or regulations can be considered for the design.