scope:

This part of EN 1452 specifies the general aspects of unplasticized poly(vinyl chloride) (PVC-U) piping systems in the field of water supply. In conjunction with Parts 2 to 5 of EN 1452 it is applicable to PVC-U pipes, fittings, valves and ancillary equipment, their joints and to joints with components of other plastics and nonplastics materials indented to be used for the following: a) water mains and services buried in ground; b) conveyance of water above ground for both outside and inside buildings, for the supply of water under pressure at approximately 20°C (cold water) intended for human consumption and for general purposes. This standard is also applicable to components for the conveyance of water up to and including 45°C. For temperatures between 25°C and 45°C figure A.1 given in annex A of EN 1452-2:1999 applies.