oSIST prEN ISO 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)

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/DIS 2505:2021)

Plastomerne cevi - Dimenzijska stabilnost po segrevanju - Preskusna metoda in parametri (ISO/DIS 2505:2021

General Information

• Status: Not Published
• Public Enquiry End Date: 01-Sep-2021
• ICS: 23.040.20 - Plastics pipes
• Technical Committee: PCV - Plastic pipes, fittings and valves
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 22-Jun-2023
• Due Date: 10-Aug-2023
• Ref Project: FprEN ISO 2505 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO/FDIS 2505:2023)

Relations

• Revised: SIST EN ISO 2505:2005 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2005)
• Effective Date: 04-Nov-2020
• Revised: SIST EN ISO 2505:2005 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2005)
• Effective Date: 18-Jan-2023
• Revised: SIST EN ISO 2505:2005 - Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2005)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

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.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 2505:2021
---------------------- Page: 2 ----------------------
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
---------------------- Page: 3 ----------------------
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
---------------------- Page: 4 ----------------------
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 Test piece ..................................................................................................................................................................................................... 3

7.2 Conditioning .............................................................................................................................................................................................. 3

8 Procedure..................................................................................................................................................................................................................... 4

9 Expression of results ........................................................................................................................................................................................ 4

10 Test report ................................................................................................................................................................................................................... 5

Annex A (informative) Recommended basic specifications for longitudinal reversion .................................6

© ISO 2021 – All rights reserved iii
---------------------- Page: 5 ----------------------
oSIST prEN ISO 2505:2021
ISO/DIS 2505:2021(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves

for the transport of fluids, Subcommittee SC 5, General properties of pipes, fittings and valves of plastic

materials and their accessories — Test methods and basic specifications.

This third edition cancels and replaces the second edition (ISO 2505:2005), which has been technically

revised.
The main changes compared to the previous edition are as follows:

— the following materials with test requirements have been added: PE 100-RC, PB-H, PB-R, PE-RT, PP-

RCT and PE-UHMW
— small diameter pipes from coils shall be straightened prior to testing

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
oSIST prEN ISO 2505:2021
ISO/DIS 2505:2021(E)
Introduction
© ISO 2021 – All rights reserved v
---------------------- Page: 7 ----------------------
oSIST prEN ISO 2505:2021
---------------------- Page: 8 ----------------------
oSIST prEN ISO 2505:2021
DRAFT INTERNATIONAL STANDARD ISO/DIS 2505:2021(E)
Thermoplastics pipes — Longitudinal reversion — Test
method and parameters
1 Scope

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 refer

...