NBN EN 12324-2 : 1999

      Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Specifications for the material of the
      polyethylene tubes
      4.1 General
      4.2 Characteristics
      4.3 Classification and designation
      4.4 Overall service (design) coefficient and
             design stress
      4.5 Reprocessable material
5 General characteristics for pipes
      5.1 Visual inspection
      5.2 Colour
      5.3 Geometrical characteristics
      5.4 Length
      5.5 Mechanical characteristics
6 Selection of the series number according to the
      length
7 Calculation of the reference mass per unit length
8 Internal diameter of coils for transportation
9 Marking
      9.1 Contents of the marking
      9.2 Spacing between the markings
      9.3 Example of marking for 1m spacing between
             the markings

Describes the features required for the polyethylene (PE) tubes for irrigation reel machines. Tubes are intended to be coiled onto reel machine structures conforming to the size series defined in EN 12324-1, and to perform the functions of carrying water and dragging the water emitting system, as it travels along the irrigated lane.