DIN 19535-2:1987-04

1 Field of application
2 Requirements
      2.1 Material
      2.2 Workmanship
      2.3 Dimensions
      2.4 Strength
      2.5 Watertightness of pipes, fittings and pipe
             joints
      2.6 Resistance to thermal stressing
      2.7 Fire behaviour
      2.8 Heat reversion
             2.8.1 Pipes
             2.8.2 Fittings
      2.9 Melt flow index
      2.10 Weldability
      2.11 Surface finish
      2.12 Colour
3 Testing
      3.1 Material
      3.2 Workmanship
      3.3 Dimensions
      3.4 Long-term internal pressure creep test
      3.5 Watertightness of pipes, fittings and pipe
             joints
      3.6 Resistance to thermal stressing
             3.6.1 Alternating stress
             3.6.2 Continuous stress
             3.6.3 Test set-up
      3.7 Fire behaviour
      3.8 Heat reversion
             3.8.1 Pipes
             3.8.2 Fittings
      3.9 Melt flow index
      3.10 Weldability
      3.11 Surface finish
      3.12 Colour
4 Inspection
      4.1 General
      4.2 Internal control
      4.3 Third-party inspection
      4.4 Other tests
5 Marking