BS EN 642:1995 Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes
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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 conceptof this standard. These types of pipes are designed for the internal pressure, external loads and bedding conditions designated by the purchaser.
BS EN 642:1995 Prestressed concrete pressure pipes, cylinder and non-cylinder, including joints, fittings and specific requirement for prestressing steel for pipes