NEN EN 12666-1 : 2006 + A1 2011

Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
   3.1 Terms and definitions
   3.2 Symbols
   3.3 Abbreviations
4 Material
   4.1 Base material
   4.2 Reprocessable and recyclable material
   4.3 Melt mass-flow rate
   4.4 Resistance to internal pressure (long-term
        behaviour)
   4.5 Thermal stability
   4.6 Fusion compatibility
   4.7 Sealing ring retaining means
5 General requirements
   5.1 Appearance
   5.2 Colour
6 Geometrical characteristics
   6.1 General
   6.2 Dimensions of pipes
   6.3 Dimensions of fittings
   6.4 Dimensions of sockets and spigots
   6.5 Types of fittings
7 Mechanical characteristics
   7.1 Mechanical characteristics of pipes
   7.2 Mechanical characteristics of fittings
8 Physical characteristics
   8.1 Physical characteristics of pipes
   8.2 Physical characteristics of fittings
9 Performance requirements
10 Sealing rings
11 Marking
   11.1 General
   11.2 Minimum required marking of pipes
   11.3 Minimum required marking of fittings
   11.4 Additional marking
Annex A (informative) General characteristics of PE
        pipes and fittings
Bibliography

Defines the requirements for pipes, fittings and the system of polyethylene (PE) piping systems intended to be used for non-pressure underground drainage and sewerage outside the building structure (application area code "U"), and non-pressure underground drainage and sewerage for both buried in the ground within the building structure (application area code "D") and outside the building structure.