Foreword
1 Scope
2 Normative references
3 Requirements
  3.1 General requirements
  3.2 Thickness
  3.3 Heavy metal content
  3.4 Colour
  3.5 Thermal stability
  3.6 Colour fastness
      3.6.1 Resistance to UV light
      3.6.2 Resistance to hot water
  3.7 Resistance to chemicals and stains
  3.8 Resistance to wet and dry cycling
4 Test methods
  4.1 Determination of tensile strength
  4.2 Determination of thermal stability
  4.3 Determination of colour fastness to hot water
  4.4 Determination of resistance to chemicals and stains
      4.4.1 Reagents
      4.4.2 Apparatus
      4.4.3 Procedure
      4.4.4 Results
  4.5 Determination of resistance to wet and dry cycling
      4.5.1 Test specimens
      4.5.2 Procedure
       4.5.3 Results
  4.6 Verification of crosslinking
  4.7 Determination of water absorption
      4.7.1 Principle
      4.7.2 Apparatus
      4.7.3 Test specimens
      4.7.4 General conditions
      4.7.5 Procedure
      4.7.6 Expression of results