EN ISO 2440:2019
(Main)Flexible and rigid cellular polymeric materials - Accelerated ageing tests (ISO 2440:2019)
Flexible and rigid cellular polymeric materials - Accelerated ageing tests (ISO 2440:2019)
This document specifies, for flexible and rigid cellular polymeric materials, laboratory procedures which are intended to imitate the effects of naturally occurring reactions such as oxidation or hydrolysis by humidity. The physical properties of interest are measured before and after the application of the specified treatments.
Test conditions are only given for open cellular latex, both open- and closed-cell polyurethane foams, and closed-cell polyolefin foams. Conditions for other materials will be added as required.
The effect of the ageing procedures on any of the physical properties of the material can be examined, but those normally tested are either the elongation and tensile properties, or the compression or indentation hardness properties.
These tests do not necessarily correlate either with service behaviour or with ageing by exposure to light.
If desired, the ageing conditions contained in this document can be applied to composite structures containing any of the above types of cellular material. This can be helpful in the investigation of possible interactions between cellular materials and other substrates. Composite constructions can be in the form of complete finished products or representative small specimens cut there-from.
Weich- und Hartschaumstoffe - Schnellalterungsprüfung (ISO 2440:2019)
Dieses Dokument für Weich- und Hartschaumstoff legt die Laborverfahren fest, mit denen die Auswirkungen natürlicher Reaktionen wie Oxydation oder Hydrolyse durch Feuchtigkeit untersucht werden können. Die relevanten physikalischen Eigenschaften werden vor und nach der Durchführung der festgelegten Behandlungsverfahren bestimmt.
Es werden nur Prüfbedingungen für offenzellige Latex , offen und geschlossenzellige Polyurethanschäume und geschlossenzellige Polyolefinschäume angegeben. Prüfbedingungen für andere Werkstoffe werden nach den jeweiligen Erfordernissen ergänzt.
Die Auswirkung der Alterungsprüfungen auf die physikalischen Eigenschaften des Werkstoffs können untersucht werden; aber üblicherweise werden jedoch entweder die Dehnungs und Zugfestigkeits-eigenschaften oder die Druckfestigkeitseigenschaften bzw. die Eindrückhärte geprüft.
Diese Prüfungen sagen nicht unbedingt etwas über das Verhalten beim Gebrauch oder die Alterung bei Lichteinwirkung aus.
Falls erforderlich, können die in diesem Dokument enthaltenen Alterungsbedingungen auf Verbund-strukturen angewendet werden, die eine der vorstehend genannten Arten von Schaumstoffen enthalten. Dies kann bei der Untersuchung möglicher Wechselwirkungen zwischen Schaumstoffen und anderen Trägermaterialien nützlich sein. Bei den Verbundkonstruktionen kann es sich um komplette Fertigerzeugnisse oder um daraus entnommene kleine repräsentative Proben handeln.
Matériaux polymères alvéolaires souples et rigides - Essais de vieillissement accéléré (ISO 2440:2019)
Le présent document spécifie, pour les matériaux polymères alvéolaires souples et rigides, des méthodes de laboratoire qui ont pour but de reproduire les effets des réactions se produisant naturellement, telles que l'oxydation ou l'hydrolyse causées par l'humidité. Les caractéristiques physiques considérées sont mesurées avant et après l'application des traitements spécifiés.
Les conditions d'essai sont données uniquement pour le latex à alvéoles ouverts, les mousses de polyuréthanne à alvéoles ouverts et fermés, et les mousses de polyoléfine à alvéoles fermés. Les conditions pour les autres matériaux seront ajoutées suivant les besoins.
L'effet des méthodes de vieillissement sur l'une quelconque des caractéristiques physiques du matériau peut être examiné, mais celles qui sont normalement vérifiées par les essais sont les caractéristiques d'allongement et de traction ou les caractéristiques de compression ou de dureté par indentation.
Ces essais ne sont pas nécessairement en corrélation, soit avec le comportement en utilisation, soit avec le vieillissement par exposition à la lumière.
Si cela est souhaité, les conditions de vieillissement contenues dans le présent document peuvent être appliquées à des structures composites contenant l'un des types de matériaux alvéolaires ci-dessus. Cela peut être utile dans la recherche des interactions possibles entre les matériaux alvéolaires et d'autres substrats. Les constructions composites peuvent être sous la forme de produits finis complets ou de petits échantillons représentatifs qui en seraient prélevés.
Prožni in penjeni polimerni materiali - Preskus s pospešenim staranjem (ISO 2440:2019)
Za prožne in penjene polimerne materiale ta standard določa laboratorijske postopke, ki so namenjeni imitaciji učinkov naravnih reakcij, kot sta oksidacija ali hidroliza zaradi vlage. Želene fizikalne lastnosti se izmerijo pred uporabo posebnih obdelav in po njej. Preskusni pogoji so podani samo za odprt celični lateks, odprto in zaprto celično poliuretansko peno ter zaprto celično poliolefinsko peno. Pogoji za druge materiale se bodo dodali po potrebi. Preveriti je mogoče učinek postopkov staranja katerih koli fizikalnih lastnosti materiala, toda običajno so preskušane raztezne in natezne lastnosti ali kompresijske lastnosti oziroma lastnosti za ugotavljanje trdnosti. Ti preskusi niso nujno v korelaciji z obnašanjem med obratovanjem ali staranjem zaradi izpostavljenosti svetlobi. Po želji je mogoče pogoje staranja, ki jih vsebuje ta dokument, uporabiti za sestavljene strukture, ki vsebujejo katero koli od zgornjih vrst celičnega materiala. To je lahko v pomoč pri preiskavi možnih interakcij med celičnimi materiali in drugimi substrati. Sestavljene strukture so lahko v obliki popolnih končnih izdelkov ali reprezentativnih majhnih vzorcev, izrezanih iz teh izdelkov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2020
Nadomešča:
SIST EN ISO 2440:2000
SIST EN ISO 2440:2000/A1:2014
SIST EN ISO 2440:2000/A2:2015
Prožni in penjeni polimerni materiali - Preskus s pospešenim staranjem (ISO
2440:2019)
Flexible and rigid cellular polymeric materials - Accelerated ageing tests (ISO 2440:2019)
Weich- und Hartschaumstoffe - Schnellalterungsprüfung (ISO 2440:2019)
Matériaux polymères alvéolaires souples et rigides - Essais de vieillissement accéléré
(ISO 2440:2019)
Ta slovenski standard je istoveten z: EN ISO 2440:2019
ICS:
83.100 Penjeni polimeri Cellular materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 2440
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 83.100 Supersedes EN ISO 2440:1999
English Version
Flexible and rigid cellular polymeric materials -
Accelerated ageing tests (ISO 2440:2019)
Matériaux polymères alvéolaires souples et rigides - Weich- und Hartschaumstoffe -
Essais de vieillissement accéléré (ISO 2440:2019) Schnellalterungsprüfung (ISO 2440:2019)
This European Standard was approved by CEN on 5 October 2019.
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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2440:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 2440:2019) has been prepared by Technical Committee ISO/TC 45 "Rubber and
rubber products" in collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of
which is held by NBN.
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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
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 2440:1999.
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, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 2440:2019 has been approved by CEN as EN ISO 2440:2019 without any modification.
INTERNATIONAL ISO
STANDARD 2440
Fourth edition
2019-10
Flexible and rigid cellular polymeric
materials — Accelerated ageing tests
Matériaux polymères alvéolaires souples et rigides — Essais de
vieillissement accéléré
Reference number
ISO 2440:2019(E)
©
ISO 2019
ISO 2440:2019(E)
© ISO 2019
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.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 2440:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Apparatus . 2
4.1 For dry heat ageing . 2
4.2 For humidity ageing . 2
4.3 For physical –property measurements . 2
5 Test pieces . 2
5.1 Number, size and shape . 2
5.2 Conditioning . 2
6 Procedure. 3
6.1 General . 3
6.2 Dry heat ageing . 3
6.2.1 Temperature . 3
6.2.2 Duration of ageing . 3
6.3 Humidity ageing . 3
6.3.1 Humidity . 3
6.3.2 Temperatures and duration of ageing . 3
6.4 Reconditioning . 4
7 Expression of results . 4
7.1 Calculation . 4
7.2 Format . 4
8 Test report . 4
ISO 2440:2019(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
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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).
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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 45, Rubber and rubber products,
Subcommittee SC 4, Products (others than hoses).
This fourth edition cancels and replaces the third edition (ISO 2440:1997), of which it constitutes a minor
revision to incorporate the Amendments ISO 2440:1997/Amd.1:2010 and ISO 2440:1997/Amd.2:2014.
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 2019 – All rights reserved
INTERNATIONAL STANDARD ISO 2440:2019(E)
Flexible and rigid cellular polymeric materials —
Accelerated ageing tests
WARNING — Persons using this document should be familiar with normal laboratory practice.
This document does not purport to address all of the safety problems, if any, associated with its
use. It is the responsibility of the user to establish appropriate safety and health practices and to
determine the applicability of any other restrictions.
1 Scope
This document specifies, for flexible and rigid cellular polymeric materials, laboratory procedures
which are intended to imitate the effects of naturally occurring reactions such as oxidation or hydrolysis
by humidity. The physical properties of interest are measured before and after the application of the
specified treatments.
Test conditions are only given for open cellular latex, both open- and closed-cell polyurethane foams,
and closed-cell polyolefin foams. Conditions for other materials will be added as required.
The effect of the ageing procedures on any of the physical properties of the material can be examined,
but those normally tested are either the elongation and tensile properties, or the compression or
indentation hardness properties.
These tests do not necessarily correlate either with service behaviour or with ageing by exposure to light.
If desired, the ageing conditions contained in this document can be applied to composite structures
containin
...
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