NEN EN 14409-1 : 2004

Foreword
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Pipes at the "M" stage
5 Fittings at the "M" stage
6 Valves
7 Fitness for purpose of the system for pipes and fittings at
  the "I" stage
8 Installation practice
Annex A (informative) Recommended scheme for assessment of
        conformity
Bibliography

Describes the requirements and test methods for plastics piping systems used for renovation of underground water supply networks which transport water intended for human consumption, including raw water intake pipelines.