scope:

Specifies the requirements for the structural design of water supply pipelines, drains and sewers, and other water industry pipelines, whether operating under atmospheric, greater or lesser pressure. This standard gives guidance on the application of the established methods of design used in CEN member countries at the time of preparation of the standard. This guidance is an important source of design expertise, but it cannot include all possible special cases, in which extensions or restrictions to the basic design methods may apply. Since in practice precise details of types of soil and installation conditions are not always available at the design stage, the choice of design assumptions is left to the discretion of the engineer. In this connection the guide can only provide general indications and advice.