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SIST EN ISO 15875-2:2026

(Main)

Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO 15875-2:2025)

Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO 15875-2:2025)

This document specifies the characteristics of pipes for crosslinked polyethylene (PE-X) piping systems intended to be used for hot and cold water installations within buildings for the conveyance of water whether or not intended for human consumption (domestic systems), and for heating systems, under design pressures and temperatures according to the class of application (see ISO 15875-1:2025, Table 1).
This document also specifies the test parameters for the test methods referred to in this document.
It is applicable to PE-X pipes with and without barrier layer.
This document is applicable to PE-X pipes for hot and cold water installations, which are intended to be connected to fittings conforming to ISO 15875-3, whereby the joints conform to the requirements of ISO 15875-5.

Kunststoff-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation – Vernetztes Polyethylen (PE‑X) – Teil 2: Rohre (ISO 15875-2:2025)

Dieses Dokument legt Eigenschaften von Rohren für Rohrleitungssysteme aus vernetztem Polyethylen (PE-X) fest, die in der Warm- und Kaltwasserinstallation innerhalb von Gebäuden für den Transport von Wasser für den menschlichen Gebrauch oder Brauchwasser (Hausinstallation) sowie für Heizungsanlagen unter Berücksichtigung der betreffenden Betriebsdrücke und der für die jeweilige Anwendungsklasse geltenden Temperaturen (siehe ISO/FDIS 15875 1:—, Tabelle 1) eingesetzt werden.
Dieses Dokument legt auch die Prüfparameter für die Prüfverfahren fest, auf die in diesem Dokument verwiesen wird.
Es gilt für Rohre aus PE-X mit und ohne Sperrschicht.
Dieses Dokument gilt für PE-X-Rohre für Warmwasser- und Kaltwasserinstallationen, die dafür vorgesehen sind, mit Formstücken nach ISO 15875 3 verbunden zu werden, wobei die Verbindungen den Anforderungen von ISO 15875 5 entsprechen.

Systèmes de canalisations en plastique pour les installations d'eau chaude et froide - Polyéthylène réticulé (PE-X) - Partie 2: Tubes (ISO 15875-2:2025)

Le présent document spécifie les caractéristiques des tubes pour les systèmes de canalisations en polyéthylène réticulé (PE-X) destinés à des installations d'eau chaude et froide à l'intérieur des bâtiments ainsi qu'au transport de l'eau, destinée ou non à la consommation humaine (systèmes domestiques) et aux installations de chauffage à des pressions et des températures de service correspondant à la classe d'application (voir ISO 15875-1:2025, Tableau 1).
Le présent document spécifie également les paramètres d'essai pour les méthodes d'essai référencées dans le présent document.
Il s’applique aux tubes en PE-X avec ou sans couche barrière.
Le présent document s'applique aux tubes en PE-X destinés aux installations d'eau chaude et d'eau froide, qui sont destinés à être connectés à des raccords conformes à l’ISO 15875-3, les assemblages étant conformes aux exigences de l’ISO 15875-5.

Cevni sistemi iz polimernih materialov za napeljave z vročo in hladno vodo - Zamreženi polietilen (PE-X) - 2. del: Cevi (ISO 15875-2:2025)

General Information

Status
Published
Public Enquiry End Date
14-Oct-2024
Publication Date
19-Nov-2025
ICS
23.040.20 - Plastics pipes
91.140.60 - Water supply systems
Technical Committee
PCV - Plastic pipes, fittings and valves
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
10-Nov-2025
Due Date
15-Jan-2026
Completion Date
20-Nov-2025
Ref Project
EN ISO 15875-2:2025 - Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO 15875-2:2025)

Relations

Revises
SIST EN ISO 15875-2:2004/A1:2007 - Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes - Amendment 1 (ISO 15875-2:2003/Amd 1:2007)
Effective Date
19-Jan-2023
Revised
SIST EN ISO 15875-2:2004/A2:2021 - Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes - Amendment 2 (ISO 15875-2:2003/Amd 2:2020)
Effective Date
19-Jan-2023
Revised
SIST EN ISO 15875-2:2004 - Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO 15875-2:2003)
Effective Date
19-Jan-2023
SIST EN ISO 15875-2:2026SIST EN ISO 15875-2:2026
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SIST EN ISO 15875-2:2026
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Standards Content (Sample)


SLOVENSKI STANDARD
01-januar-2026
Cevni sistemi iz polimernih materialov za napeljave z vročo in hladno vodo -
Zamreženi polietilen (PE-X) - 2. del: Cevi (ISO 15875-2:2025)
Plastics piping systems for hot and cold water installations - Crosslinked polyethylene
(PE-X) - Part 2: Pipes (ISO 15875-2:2025)
Kunststoff-Rohrleitungssysteme für die Warm- und Kaltwasserinstallation – Vernetztes
Polyethylen (PE‑X) – Teil 2: Rohre (ISO 15875-2:2025)
Systèmes de canalisations en plastique pour les installations d'eau chaude et froide -
Polyéthylène réticulé (PE-X) - Partie 2: Tubes (ISO 15875-2:2025)
Ta slovenski standard je istoveten z: EN ISO 15875-2:2025
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
91.140.60 Sistemi za oskrbo z vodo Water supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 15875-2
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2025
EUROPÄISCHE NORM
ICS 23.040.20; 91.140.60 Supersedes EN ISO 15875-2:2003, EN ISO 15875-
2:2003/A1:2007, EN ISO 15875-2:2003/A2:2020
English Version
Plastics piping systems for hot and cold water installations
- Crosslinked polyethylene (PE-X) - Part 2: Pipes (ISO
15875-2:2025)
Systèmes de canalisations en plastique pour les Kunststoff-Rohrleitungssysteme für die Warm- und
installations d'eau chaude et froide - Polyéthylène Kaltwasserinstallation - Vernetztes Polyethylen (PE-X)
réticulé (PE-X) - Partie 2: Tubes (ISO 15875-2:2025) - Teil 2: Rohre (ISO 15875-2:2025)
This European Standard was approved by CEN on 23 October 2025.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15875-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 15875-2:2025) has been prepared by Technical Committee ISO/TC 138
"Plastics pipes, fittings and valves for the transport of fluids" in collaboration with Technical Committee
CEN/TC 155 “Plastics piping systems and ducting systems” the secretariat of which is held by NEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2026, and conflicting national standards shall be
withdrawn at the latest by April 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15875-2:2003, EN ISO 15875-2:2003/A1:2007, EN ISO 15875-
2:2003/A2:2020.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 15875-2:2025 has been approved by CEN as EN ISO 15875-2:2025 without any
modification.
International
Standard
ISO 15875-2
Second edition
Plastics piping systems for hot
2025-10
and cold water installations —
Crosslinked polyethylene (PE-X) —
Part 2:
Pipes
Systèmes de canalisations en plastique pour les installations
d'eau chaude et froide — Polyéthylène réticulé (PE-X) —
Partie 2: Tubes
Reference number
ISO 15875-2:2025(en) © ISO 2025

ISO 15875-2:2025(en)
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 15875-2:2025(en)
Contents Page
Foreword .v
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 2
3.1 Terms and definitions .2
3.2 Symbols .4
4 Generic requirements, instructions and explanations. 5
4.1 Designation PE-X .5
4.2 Application classes, design pressures and pipe dimension classes restrictions .5
4.3 Application classes — Responsibility of the purchaser or specifier .5
4.4 Use of the parts of the ISO 15875 series .5
4.5 PE-X pipes provided with a thin barrier layer .5
4.6 Completeness of tests .5
4.7 Test result interchangeability restriction .5
5 Material. 6
5.1 Pipe material .6
5.2 Evaluation of σ -curves .6
LPL
5.3 Reference lines . .7
5.4 Influence on water intended for human consumption .9
5.5 Barrier layer material .9
5.5.1 General .9
5.5.2 Thermal stability of the barrier layer material .9
5.5.3 Thermal stability of the adhesive layer material .9
5.5.4 Thermal stability of the outer layer material .9
6 General characteristics . 10
6.1 Pipe construction .10
6.2 Appearance .10
6.3 Opacity .10
6.4 Oxygen permeability .10
7 Geometrical characteristics . 10
7.1 Pipes without barrier layer(s) - General .10
7.2 Pipes without barrier layer - Dimensions of pipes .11
7.2.1 Outside diameters .11
7.2.2 Wall thicknesses and their tolerances .11
7.3 Pipes with barrier layer — Dimensions of pipes .14
7.3.1 General .14
7.3.2 Option I - Dimensional integration of the barrier layer .14
7.3.3 Option II - Barrier layer on top .14
8 Mechanical characteristics .15
9 Physical and chemical characteristics .16
10 Performance requirements . .
...

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