EN 14150:2006

Foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
  4.1 Cell
  4.2 Volume measuring devices and pressure delivery system
  4.3 Liquid supply
  4.4 Temperature control
5 Specimens
6 Procedure
  6.1 Installation
      6.1.1 General
      6.1.2 Type A volume measuring devices:
      6.1.3 Type B volume measuring devices:
  6.2 Preparation stages
      6.2.1 General
      6.2.2 First preparation stage
      6.2.3 Second preparation stage
  6.3 Test stage
7 Calculation
  7.1 Preparation stages
  7.2 Volume-temperature dependence coefficients
  7.3 Test
  7.4 Test validity
8 Test report
Bibliography

This European Standard specifies a method for measuring the steady-state liquid flow through a geosynthetic barrier, used to contain liquids in long-term applications.The test method and described apparatus allow the measurement of flows accurately down to 10-6 m3/m2/day. In particular circumstances where testing indicates that values obtained for a geosynthetic barrier lie below the threshold of sensitivity of this test method, then the value of liquid flow is declared as being less than 10-6 m3/m2/day.Due to its long duration this test method is not suitable for production control testing.Geosynthetic clay liners cannot be tested with this apparatus.