NBN EN 13476-1 : 2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions, symbols and abbreviations
   3.1 Definitions
        3.1.1 General definitions
        3.1.2 Geometrical definitions
   3.2 Symbols and abbreviations
4 Material
   4.1 General
   4.2 Utilisation of non-virgin material
   4.3 Sealing ring retaining components
   4.4 Sealing rings
   4.5 Fused or welded joints
5 Designation of wall construction
6 Appearance and colour
   6.1 Appearance
   6.2 Colour
7 Geometrical characteristics
8 Types of fittings
   8.1 General
   8.2 Design length of fittings
9 System performance related test methods and characteristics
10 Marking, general
   10.1 Presentation
   10.2 Marking process
   10.3 Size
Annex A (informative) Characteristics of PVC-U, PP and PE pipes
        and fittings
        A.1 General
        A.2 Material characteristics
        A.3 Chemical resistance
        A.4 Abrasion resistance
        A.5 Hydraulic roughness
Annex B (informative) Structural design
        B.1 General
        B.2 Structural design based on practical experience
        B.3 Structural design based on a design calculations
        B.4 Selection of fitting stiffness or class
Annex C (informative) Designation of pipes and corresponding
        fittings
Annex D (informative) Guidance in cleaning plastics pipes
        D.1 Introduction
        D.2 Cleaning and unblocking
            D.2.1 Choosing the right equipment
            D.2.2 Comparing techniques
        D.3 Conclusions from independent jetting tests
            D.3.1 Assessing efficiency and impact
            D.3.2 Testing of plastic pipes
            D.3.3 Clearing tests
        D.4 Supplementary cleaning techniques
        D.5 Recommended practice principles for jetting
National Annex NA (informative) to BS EN 13476-1:2007
Additional guidance for UK users
Bibliography

Describes the definitions and general requirements for pipes, fittings and the system based on unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) structured-wall piping systems that are to be used for non-pressure underground drainage and sewerage systems.