EN 14414:2004

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
   5.1 Exposure tank
   5.2 Lid for sealing the exposure tank
   5.3 Temperature control equipment
   5.4 Sample holder
   5.5 Stirrer
6 Reagents and materials
   6.1 Hydrolysis under acid conditions (method A)
   6.2 Hydrolysis under basic conditions (method B)
   6.3 Solvation and swelling (method C)
   6.4 Synthetic leachate (method D)
7 Sampling
   7.1 Geotextiles and geosynthetic clay barriers
   7.2 Polymeric and bituminous geosynthetic barriers
8 Test procedure
   8.1 General
   8.2 Control specimens
   8.3 Tank preparation
   8.4 Preparation of liquid and placing of samples
   8.5 Sealing the tank
   8.6 Stirring the solution
   8.7 Immersion temperatures
   8.8 Test duration
   8.9 Removal of specimens and conditioning
9 Evaluation
   9.1 Geotextiles and geosynthetic clay barriers
   9.2 Polymeric and bituminous geosynthetic barriers
10 Test report
Bibliography

This European Standard describes a test method to determine the chemical resistance of geosynthetics to liquid municipal, agricultural and industrial wastes, using a laboratory immersion procedure.The procedure includes three chemical compounds chosen to initiate known types of chemical degradation, and a synthetic leachate representative of a landfill containing domestic waste. The procedure can also be applied using a site-specific leachate. These options are denoted by methods A to E: - method A: hydrolysis under acidic conditions;- method B: hydrolysis under basic conditions;- method C: solvation/swelling;- method D: synthetic leachate;- method E: any site-specific leachate;The method of evaluation (see clause 9) differs according to whether the material is a geotextile, a polymeric or bituminous geosynthetic barrier, or a geosynthetic clay barrier. In the case of geosynthetic clay barriers only the polymeric component will be tested.