EN 14576:2005

Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 General requirements and procedure
  4.1 Apparatus
      4.1.1 Blanking die
      4.1.2 Notching device
      4.1.3 Stress cracking apparatus
      4.1.4 Compression moulding press
      4.1.5 Compression moulding die
  4.2 Test temperatures
  4.3 Reagent
  4.4 Test duration
  4.5 Compression moulding procedure
  4.6 Specimens
  4.7 Test procedure
5 Test report
Annex A (informative) Potential supply sources for the equipment
Bibliography

This document specifies a test method for screening the resistance of polymeric geosynthetic barriers to stress cracking. The test is applicable to polypropylene and polyethylene based products and to all other polymeric geosynthetic barriers which have a partially crystalline structure.NOTEThe described method is suitable for conformance testing of smooth surfaced (non-textured) geosynthetic barriers. However the resistance to stress cracking of the resin used in the manufacture of structured surface materials can be evaluated by carrying out the test on a plaque formed from the relevant resin (see 4.5) or, where structuring is carried out as a separate processing step, on a preformed smooth surface geosynthetic barrier, the test can be performed on the intermediate smooth material.The data are suitable for screening and determination of conformity but not for deriving performance data such as lifetime, unless supported by further evidence.