1. Qualities for use

Knowledge of the qualities or defects of materials is linked to practical application, health and safety measures, the longevity of structures and the economic constraints of the market.

Designing a hydraulic wastewater network involves :

• assess effluent flow ;

• design the facilities, taking into account the future development of collection, while ensuring protection against flooding and pollution.

The reference text for the mechanical design of pipes is fascicule 70 of the CCTG "Ouvrages d'assainissement".

The European standard NF EN 752 – Drainage and sewerage systems outside buildings – provides the framework for the design, construction, rehabilitation, maintenance and operation of sewerage systems.

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