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ISO - 18225

Plastics piping systems - Multilayer piping systems for outdoor gas installations - Specifications for systems

active, Most Current
Organization: ISO
Publication Date: 1 December 2012
Status: active
Page Count: 24
ICS Code (Petroleum products and natural gas handling equipment): 75.200
ICS Code (Plastics fittings): 23.040.45
ICS Code (Plastics pipes): 23.040.20
scope:

This International Standard specifies general and performance requirements for multilayer pipe systems based on pipes made thermoplastics and intended to be used for gas supply outdoors.

It gives requirements for the design of pipe systems consisting of multilayer pipes based on thermoplastics and for which at least 60 % of the wall thickness is of a polymeric material. The polymeric material used and for stress design layer and all inner layers must be polyethylene (PE) and/or crosslinked polyethylene (PE-X), in accordance with Annex A. The outer layers of metal multilayer pipes must me of either PE or PE-X.

NOTE For the purposes of this International Standard, PE-RT is considered as PE, while PE-X and adhesive layers are considered as thermoplastics materials.

This International Standard is applicable to systems intended to be operated at temperatures ranging from -20 °C to 40 °C. It is applicable to pipes in these systems having a nominal diameter up to and including 630 mm, and to the supply of gaseous fuels of categories D (natural gas) and (LPG vapour and natural gas or LPG vapour.

Document History

18225
December 1, 2012
Plastics piping systems - Multilayer piping systems for outdoor gas installations - Specifications for systems
This International Standard specifies general and performance requirements for multilayer pipe systems based on pipes made thermoplastics and intended to be used for gas supply outdoors. It gives...
October 15, 2007
Plastics piping systems — Multilayer piping systems for outdoor gas installations — Specifications for systems
A description is not available for this item.

References

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