SIST EN ISO 2505:2023

Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2023)

This document specifies a method for determining the longitudinal reversion of thermoplastics pipes,
to be carried out in either a liquid or in air. In case of dispute, heated liquid is used as the reference.
This document is applicable to all thermoplastics pipes with smooth internal and external walls of
constant cross‑section. It is not applicable to non‑smooth structured‑wall thermoplastics pipes.
The parameters appropriate to the pipe material and recommendations for the maximum levels of
reversion as a function of the pipe material are given in Annex A.
This method is applicable for pipes of wall thickness ≤ 16 mm.

Rohre aus Thermoplasten - Längsschrumpf - Prüfverfahren und Kennwerte (ISO 2505:2023)

Dieses Dokument legt ein Verfahren zur Bestimmung des Längsschrumpfes von Rohren aus Thermoplasten fest, deren Durchführung im Flüssigkeitsbad oder in Luft erfolgt. Im Schiedsfall wird das Verfahren im Flüssigkeitsbad als Referenzverfahren angewendet.
Diese Internationale Norm gilt für alle Rohre aus Thermoplasten mit glatten Innen- und Außenwänden mit konstantem Querschnitt. Sie gilt nicht für raue Rohre aus Thermoplasten mit strukturierten Wänden.
Die für den Rohrwerkstoff geeigneten Parameter sowie Empfehlungen für die maximalen Werte des Schrumpfes als Funktion des Rohrwerkstoffes sind in Anhang A angegeben.
Dieses Verfahren gilt für Rohre mit einer Wanddicke ≤ 16 mm.

Tubes en matières thermoplastiques - Retrait longitudinal à chaud - Méthode d'essai et paramètres (ISO 2505:2023)

Termoplastične (plastomerne) cevi - Dolžinska reverzija - Preskusna metoda in parametri (ISO 2505:2023)

Ta dokument določa metodo za določevanje dimenzijske stabilnosti termoplastične cevi po segrevanju, ki se izvaja v tekočini ali na zraku. V spornem primeru se za referenco uporabi segreta tekočina. Ta dokument se uporablja za vse termoplastične cevi z gladkimi notranjimi in zunanjimi površinami s stalnim prečnim prerezom. Ne uporablja se za termoplastične cevi z negladkimi površinami. Ustrezni parametri za material cevi in priporočila za največje stopnje dimenzijske stabilnosti kot funkcije materiala cevi so podani v dodatku A. Ta metoda velja za cevi z debelino stene ≤ 16 mm.

General Information

• Status: Published
• Public Enquiry End Date: 01-Sep-2021
• Publication Date: 13-Nov-2023
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: PCV - Plastic pipes, fittings and valves
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-Nov-2023
• Due Date: 13-Jan-2024
• Completion Date: 14-Nov-2023
• Ref Project: EN ISO 2505:2023 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2023)

Relations

• Replaces: SIST EN ISO 2505:2005 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2005)
• Effective Date: 01-Dec-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 2505:2023
01-december-2023
Nadomešča:
SIST EN ISO 2505:2005
Termoplastične (plastomerne) cevi - Dolžinska reverzija - Preskusna metoda in
parametri (ISO 2505:2023)
Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO
2505:2023)
Rohre aus Thermoplasten - Längsschrumpf - Prüfverfahren und Kennwerte (ISO
2505:2023)
Tubes en matières thermoplastiques - Retrait longitudinal à chaud - Méthode d'essai et
paramètres (ISO 2505:2023)
Ta slovenski standard je istoveten z: EN ISO 2505:2023
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
SIST EN ISO 2505:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 2505:2023

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SIST EN ISO 2505:2023


EN ISO 2505
EUROPEAN STANDARD

NORME EUROPÉENNE

October 2023
EUROPÄISCHE NORM
ICS 23.040.20 Supersedes EN ISO 2505:2005
English Version

Thermoplastics pipes - Longitudinal reversion - Test
method and parameters (ISO 2505:2023)
Tubes en matières thermoplastiques - Retrait Rohre aus Thermoplasten - Längsschrumpf -
longitudinal à chaud - Méthode d'essai et paramètres Prüfverfahren und Kennwerte (ISO 2505:2023)
(ISO 2505:2023)
This European Standard was approved by CEN on 12 September 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2505:2023 E
worldwide for CEN national Members.

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SIST EN ISO 2505:2023
EN ISO 2505:2023 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 2505:2023
EN ISO 2505:2023 (E)
European foreword
This document (EN ISO 2505:2023) 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 2024, and conflicting national standards shall be
withdrawn at the latest by April 2024.
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 2505:2005.
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 2505:2023 has been approved by CEN as EN ISO 2505:2023 without any modification.

3

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SIST EN ISO 2505:2023

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...

SLOVENSKI STANDARD
oSIST prEN ISO 2505:2021
01-september-2021
Plastomerne cevi - Dimenzijska stabilnost po segrevanju - Preskusna metoda in
parametri (ISO/DIS 2505:2021
Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO/DIS
2505:2021)
Rohre aus Thermoplasten - Längsschrumpf - Prüfverfahren und Kennwerte (ISO/DIS
2505:2021)
Tubes en matières thermoplastiques - Retrait longitudinal à chaud - Méthode d'essai et
paramètres (ISO/DIS 2505:2021)
Ta slovenski standard je istoveten z: prEN ISO 2505
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
oSIST prEN ISO 2505:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 2505:2021

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oSIST prEN ISO 2505:2021
DRAFT INTERNATIONAL STANDARD
ISO/DIS 2505
ISO/TC 138/SC 5 Secretariat: NEN
Voting begins on: Voting terminates on:
2021-06-09 2021-09-01
Thermoplastics pipes — Longitudinal reversion — Test
method and parameters
Tubes en matières thermoplastiques — Retrait longitudinal à chaud — Méthode d'essai et paramètres
ICS: 23.040.20
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 2505:2021(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2021

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oSIST prEN ISO 2505:2021
ISO/DIS 2505:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

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oSIST prEN ISO 2505:2021
ISO/DIS 2505:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviations. 1
5 Principle . 2
6 Apparatus . 2
7 Preparation . 3
7.1 Tes
...