scope:

This document specifies requirements for the design, manufacture and testing of composite pipe for use with LPG in liquid phase and vapour pressure phase.

This document is applicable to LPG composite pipe having a maximum allowable pressure of less than or equal to 25 bar.

This document applies to pipe made from thermoplastics, which can include some degree of reinforcement.

It does not apply to fibre reinforced thermosets, commonly referred to as glass fibre reinforced plastic (GRP), nor rigid metals or corrugated metal pipe or hoses to EN ISO 10380 [6].

For the purpose of this document, composite pipe refers to the design requirements below:

a) Design 1: PE-based thick-walled pipe with multi-layer design without additional reinforcement than the wall thickness of the PE;

b) Design 2: Nylon-based multi-layer design with a polyester or aramid braid for reinforcement.

NOTE For installation of composite pipework systems, see EN 16125.