NEN EN 12842 : 2012

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Technical requirements
      4.1 General
      4.2 Dimensional requirements
      4.3 Mechanical properties of ductile iron
      4.4 Coatings
      4.5 Marking
      4.6 Leaktightness
5 Performance requirements for joints
      5.1 General
      5.2 Flexible joints
      5.3 Flanged joints
6 Test methods
      6.1 Tensile testing
      6.2 Brinell hardness
      6.3 Works leaktightness tests
7 Type tests
      7.1 Leaktightness of joints to internal hydrostatic
             pressure
      7.2 Leaktightness of joints to negative internal
             pressure
      7.3 Leaktightness of joints to cyclic internal
             pressure
8 Tables of dimensions
      8.1 Dimensions of sockets for push-in flexible
             joints
      8.2 Dimensions of sockets for mechanical flexible
             joints
      8.3 Dimensions of fittings
Annex A (informative) Quality assurance

Defines the requirements and associated test methods applicable to ductile iron fittings, ductile iron and mild steel couplings and flange adaptors and their joints to be used with poly(vinyl chloride) (PVC-U) pipes or polyethylene (PE) pipes.