This Part of EN 1452 specifies the characteristics for the fitness for purpose of unplasticized poly(vinyl
chloride) (PVC-U) piping systems in the field of water supply.
It also specifies the test parameters for the test methods referred to in this standard.
In conjunction with Parts 1 to 4 of EN 1452, ENV 1452-6 and ENV 1452-7 it is applicable to joints and
assemblies with components of PVC-U, other plastics and non-plastics materials intended 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 assemblies for the conveyance of water up to and including 45 °C.
For temperatures between 25 °C and 45 °C figure A.1 in annex A of EN 1452-2:1999 applies.