NEN EN 13244-3 : 2003

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
4 Material
   4.1 PE compound
   4.2 Material for non-polyethylene parts
        4.2.1 General
        4.2.2 Metal parts
        4.2.3 Elastomers
        4.2.4 Other materials
5 General characteristics
   5.1 Appearance
   5.2 Design
   5.3 Colour
   5.4 Electrical characteristics for electrofusion
        fittings
   5.5 Appearance of factory made joints
6 Geometrical characteristics
   6.1 Measurement of dimensions
   6.2 Dimensions of electrofusion sockets
        6.2.1 Diameters and lengths of electrofusion
              sockets
        6.2.2 Wall thicknesses
   6.3 Dimensions of spigotted fittings
   6.4 Dimensions of socket fusion fittings
   6.5 Socketed pipe
        6.5.1 Dimensions and tolerances of the socket
              and length of spigot end
        6.5.2 Equations for calculating the dimensions
              of sockets of non-end-load-resistant
              fittings for use with pipes up to 6 m
              lengths
   6.6 Dimensions of mechanical fittings
   6.7 Dimensions of loose backing flanges and flange
        adapters
7 Mechanical characteristics
   7.1 General
   7.2 Conditioning
   7.3 Requirements
   7.4 Retest in case of failure at 80 degrees C
   7.5 Pressure drop
8 Physical characteristics
   8.1 Conditioning
   8.2 Requirements
9 Chemical characteristics of fittings in contact with
   chemicals
10 Sealing rings
11 Performance requirements
12 Marking
   12.1 General
   12.2 Minimum required marking of fittings
   12.3 Minimum required marking on a label
   12.4 Fusion system recognition
13 Packaging
Annex A (normative) - Socket fusion fittings
Annex B (informative) - Examples of typical terminal
                        connection for electrofusion fittings
Bibliography

Describes the characteristics of fittings made from polyethylene (PE) intended for buried and above-ground pressure systems for water for general purposes, drainage and sewerage.