prCEN/TR 1452-7

Plastics piping systems for water supply - Unplasticized poly(vinyl chloride) (PVC-U) - Part 7: Guidance for the assessment of conformity prCEN/TR 1452-7

Scope

This Technical Report gives guidance for the assessment of conformity intended to be included in the manufacturer's quality plan as part of the quality management system.
It includes:
a) requirements for materials, components, joints and assemblies given in EN ISO 1452;
b) requirements for the manufacturer's quality management system;
NOTE 1 It is recommended that the quality management system conforms to EN ISO 9001 [1];
c) definitions and procedures to be applied if third party certification is involved.
NOTE 2 If third party certification is involved, it is recommended that the certification body is accredited to EN 45011[2] or EN 45012[3], as applicable.
In conjunction with EN ISO 1452 it is applicable to PVC-U piping systems intended to be used for
a) water supply, and
b) drainage and sewerage under pressure at approximately 20 °C:
1) buried in the ground;
2) sea outfalls;
3) laid in inland waters and/or in ducts;
4) suspended below bridges.
This specification is also applicable to PVC-U piping systems for the continuous conveyance of sewage and drainage up to and including 45 °C as required in EN 773 [4].
NOTE 3 In this case the pressure derating factors given in Figure A.1 of EN ISO 1452-2 apply.
NOTE 4 No pressure reduction is necessary for the drainage of waste waters at short-term peak temperatures up to 45 °C (cumulated for 2 years during a service life of 50 years).