scope:

This Part of ISO 1452 specifies the characteristics of fittings made from unplasticized poly(vinyl chloride) (PVC-U) for piping systems intended for water supply and for buried and above ground drainage and sewerage under pressure.
It also specifies the test parameters for the test methods referred to in this standard.
In conjunction with Parts 1, 2, and 5 of ISO 1452, it is applicable to PVC-U fittings and to joints with
components of PVC-U, other plastics and non-plastics materials intended to be used for the following:
b) water mains and services buried in ground;
c) conveyance of water above ground for both outside and inside buildings;
d) buried and above ground drainage and sewerage under pressure.
It is applicable to fittings in piping systems intended for the supply of water under pressure up to and including 25 °C (cold water) intended for human consumption and for general purposes as well as for waste water under pressure.
This standard is also applicable to components for the conveyance of water and waste water up to and including 45 °C. For temperatures between 25 °C and 45 °C Figure A.1 given in Annex A of
ISO/DIS 1452-2:2008 applies.
NOTE The possibilities of use for temperatures above 45° C should be defined between the producer and end-user case by case.
Depending on the jointing method, this standard is applicable to the following types of fittings:
. fittings for solvent cementing;
. elastomeric ring seal fittings.
PVC-U fittings can be manufactured by injection-moulding and/or be fabricated from pipe.
This standard is also applicable to PVC-U flange adapters and to the corresponding flanges made from various materials.
This standard covers a range of fitting sizes and pressure classes and gives requirements concerning colours.
NOTE 2 It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes.