EN 13948:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
   5.1 Greenhouse
   5.2 Test and control containers
   5.3 Moisture layer
   5.4 Pressure distribution layer
   5.5 Growing substrate
   5.6 Fertiliser
       5.6.1 Basic fertilisers (to be mixed with the growing
             substrate)
       5.6.2 Slow working coated fertiliser (to be used during the
             testing period)
   5.7 Tensiometer
   5.8 Test plants
   5.9 Water quality for irrigation
6 Sampling of test specimens
7 Procedure
   7.1 Preparation of growing substrate
   7.2 Preparation and installation of the test containers
   7.3 Preparation and installation of the control containers
   7.4 Care of the plants
8 Expression of results
   8.1 General
   8.2 During the test
   8.3 At the end of the test
9 Precision of test method
10 Test report

This European Standard specifies a method to determine the resistance of roof waterproofing sheets to root penetration.This European Standard relates exclusively to sheets. It is not possible to test a system comprising several different sheets.This European Standard does not contain any evaluation of the sheet to be tested in respect of its environmental requirements.