EN 642:1994 Prestressed concrete pressure pipes, cylinder and non-cylinder type, including joints, fittings and specific requirement for prestressing steel for pipes
This standard covers the requirements and the manufacture of prestressed concrete cylinder and non-cylinder pressure pipes and fittings in sizes from DN/ID 500 to DN/ID 4000 inclusive. Larger sizes could be manufactured based on the concepts of this standard. These types of pipes are designed for the internal pressure, external loads and bedding conditions designated by the purchaser.
EN 642:1994 history
1994EN 642:1994 Prestressed concrete pressure pipes, cylinder and non-cylinder type, including joints, fittings and specific requirement for prestressing steel for pipes