prSSH EN 16903:2025

Plastic piping systems buried outside the building structure - Environmental product declarations - Product category rules complementary to EN 15804

Scope

This document specifies product category rules (PCR) for Environmental Product Declarations (EPDs), as described in EN ISO 14025 and EN 15942.
This document is applicable to:
- functional unit as plastic piping systems buried outside building structure;
- declared unit as one or more main structural components, as specified by the list of product standards provided in Annex CC.
Main structural components are:
- pipes;
- fittings (e.g. flange couplers, bends and reducers, valves and electrofusion fittings);
- manholes, inspection chambers and infiltration boxes.
This document gives guidelines for both pressure and non-pressure applications.
The intended function of the system considered is to convey fluids according to EN 476 (for sewers, drain and surface water), EN 805 (water supply), or EN 12007 (gas supply).
This document provides in Annex DD a non-exhaustive list of application fields. In addition, the following applications and materials are not in scope of this document: GRP pipes and fittings, and district heating pipes.
This document specifies the rules for the product category of construction products as defined in and is intended to be used in conjunction with EN 15804+A2.
In addition to EN 15804+A2, this document specifies:
- the functional unit (consisting of pipes, fittings, manholes and inspection chambers and ancillary components) and declared unit (consisting of pipes and/or fittings and/or manholes and /or inspection chambers);
- the system boundaries and additional mandatory modules to be declared;
- the processes to be included in the installation phase;
- scenarios for module A4, A5;
- use conditions for the use phase (B modules);
- reference service life (RSL);
- end of life scenarios.