EN ISO 4577:2019
(Main)Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)
Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative stability in air - Oven method (ISO 4577:2019)
This document specifies a method for the determination of the resistance of moulded test specimens of polypropylene and propylene-copolymers to accelerated ageing by heat in the presence of air using a forced draught oven.
The method represents an attempt to estimate the service life of parts fabricated from propylene plastics.
The stability determined by this method is not directly related to the suitability of the material for use when different environmental conditions prevail.
NOTE The specified thermal levels are considered sufficiently severe to cause failure of commercial grades of heat-stable propylene plastics within a reasonable period of time. If desired, lower temperatures can be applied to estimate the performance of propylene plastics with lower heat stabilities.
Kunststoffe - Polypropylen und Propylen-Copolymere - Bestimmung der thermischen Oxidationsstabilität in Luft - Ofen-Verfahren (ISO 4577:2019)
Dieses Dokument legt ein Verfahren zur Bestimmung des Widerstandes geformter Probekörper aus Polypropylen und Propylen Copolymeren gegen beschleunigte Alterung durch Wärme in Gegenwart von Luft fest, wobei ein Ofen mit Zwangsbelüftung angewandt wird.
Mit dem Verfahren wird versucht, die Gebrauchsdauer von aus Propylen hergestellten Kunststoffteilen einzuschätzen.
Die nach diesem Verfahren bestimmte Stabilität steht nicht in direktem Verhältnis zur Gebrauchstauglichkeit des Werkstoffes bei Vorherrschen anderer Umgebungsbedingungen.
ANMERKUNG Die angegebenen Temperaturbereiche werden als ausreichend hoch angesehen, um bei handels-üblichen Qualitäten wärmebeständiger Propylenkunststoffe innerhalb einer vertretbaren Zeit zur Schädigung zu führen. Falls dies gewünscht wird, können bei der Einschätzung der Gebrauchsleistung von Propylenkunststoffen mit geringerer Wärmestabilität niedrigere Temperaturen angewandt werden.
Plastiques - Polypropylène et copolymères de propylène - Détermination de la stabilité à l'oxydation à chaud dans l'air - Méthode à l'étuve (ISO 4577:2019)
Le présent document spécifie une méthode de détermination de la résistance d'éprouvettes moulées, en polypropylène ou copolymères de propylène, au vieillissement accéléré à la chaleur en présence d'air, dans une étuve à circulation d'air forcé.
La méthode représente une tentative d'estimation de la durée de vie en service des pièces en plastiques propyléniques.
La stabilité déterminée par la présente méthode n'est pas directement liée à l'aptitude du matériau à une utilisation dans différentes conditions d'environnement.
NOTE Les niveaux thermiques spécifiés sont considérés comme suffisamment sévères pour entraîner la dégradation, en un temps raisonnable, des types commerciaux de plastiques propyléniques résistant à la chaleur. Si on le désire, des températures plus basses peuvent être appliquées pour estimer les performances de types de plastiques propyléniques de stabilité plus faible à la chaleur.
Polimerni materiali - Polipropilen in kopolimeri propilena - Določanje termično-oksidativne stabilnosti na zraku - Metoda s pečjo (ISO 4577:2019)
Ta standard določa metodo za določitev odpornosti oblikovanih preskusnih vzorcev iz polipropilena in propilen-kopolimerov proti pospešenemu staranju zaradi vročine v prisotnosti zraka s pomočjo peči s prisilnim vpihovanjem zraka. Z metodo se poskuša oceniti življenjska doba delov, izdelanih iz propilenskih polimerov. Stabilnost, določena s to metodo, ni neposredno povezana s primernostjo materiala za uporabo v različnih okoljskih pogojih.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2019
Nadomešča:
SIST EN ISO 4577:2000
Polimerni materiali - Polipropilen in kopolimeri propilena - Določanje termično-
oksidativne stabilnosti na zraku - Metoda s pečjo (ISO 4577:2019)
Plastics - Polypropylene and propylene-copolymers - Determination of thermal oxidative
stability in air - Oven method (ISO 4577:2019)
Kunststoffe - Polypropylen und Propylen-Copolymere - Bestimmung der thermischen
Oxidationsstabilität in Luft - Ofen-Verfahren (ISO 4577:2019)
Plastiques - Polypropylène et copolymères de propylène - Détermination de la stabilité à
l'oxydation à chaud dans l'air - Méthode à l'étuve (ISO 4577:2019)
Ta slovenski standard je istoveten z: EN ISO 4577:2019
ICS:
83.080.20 Plastomeri Thermoplastic materials
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 4577
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 83.080.20 Supersedes EN ISO 4577:1999
English Version
Plastics - Polypropylene and propylene-copolymers -
Determination of thermal oxidative stability in air - Oven
method (ISO 4577:2019)
Plastiques - Polypropylène et copolymères de Kunststoffe - Polypropylen und Propylen-Copolymere -
propylène - Détermination de la stabilité à l'oxydation Bestimmung der thermischen Oxidationsstabilität in
à chaud dans l'air - Méthode à l'étuve (ISO 4577:2019) Luft - Ofen-Verfahren (ISO 4577:2019)
This European Standard was approved by CEN on 25 July 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 4577:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 4577:2019) has been prepared by Technical Committee 61 "Plastics" 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 March 2020, and conflicting national standards shall
be withdrawn at the latest by March 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 4577:1999.
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 4577:2019 has been approved by CEN as EN ISO 4577:2019 without any modification.
INTERNATIONAL ISO
STANDARD 4577
Second edition
2019-07
Plastics — Polypropylene
and propylene-copolymers —
Determination of thermal oxidative
stability in air — Oven method
Plastiques — Polypropylène et copolymères de propylène —
Détermination de la stabilité à l'oxydation à chaud dans l'air —
Méthode à l'étuve
Reference number
ISO 4577:2019(E)
©
ISO 2019
ISO 4577:2019(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.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 4577:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Test specimens. 5
7 Conditioning . 5
8 Test conditions . 5
9 Procedure. 5
10 Expression of results . 6
11 Test report . 6
Bibliography . 7
ISO 4577:2019(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
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 61, Plastics, Subcommittee SC 9,
Thermoplastic materials.
This second edition cancels and replaces the first edition (ISO 4577:1983), of which it constitutes a
minor revision. The changes compared to the previous edition are as follows:
— the normative references have been updated;
— the mandatory Clause 3 "Terms and definitions" has been added the subsequent clauses have been
renumbered.
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 4577:2019(E)
Plastics — Polypropylene and propylene-copolymers
— Determination of thermal oxidative stability in air —
Oven method
1 Scope
This document specifies a method for the determination of the resistance of moulded test specimens
of polypropylene and propylene-copolymers to accelerated ageing by heat in the presence of air using a
forced draught oven.
The method represents an attempt to estimate the service life of parts fabricated from propylene
plastics.
The stability determined by this method is not directly related to the suitability of the material for use
when different environmental conditions prevail.
NOTE The specified thermal levels are considered sufficiently severe to cause failure of commercial grades
of heat-stable propylene plastics within a reasonable period of time. If desired, lower temperatures can be applied
to estimate the performance of propylene plastics with lower heat stabilities.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 291, Plastics — Standard atmospheres for conditioning and testing
ISO 19069-2, Plastics — Polypropylene (PP) moulding and extrusion materials — Part 2: Preparation of
test specimens and determination of properties
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
4 Principle
Accelerated ageing of test specimens is performed by heat in the presence of air using a forced draught
oven. Visual examination and determination of the time to failure is done.
Under the severe conditions of this test, the specimens undergo degradation at a rate dependent upon
the thermal endurance of the propylene plastic under examination.
For the purpose of this document, the time to failure of the material is taken as the number of days after
which the specimen shows localized crazing, crumbling and/or discoloration.
If a more reliable estimate of the life-temperature relationship of propylene plastics is required, the
test may be conducted at several temperatures and the data interpreted through use of the Arrhenius
ISO 4577:2019(E)
relation, by plotting the logarithms of times to failure against the reciprocals of the temperatures in
kelvins. Temperatures in the range from 100 °C to 150 °C, with intervals of 10 °C, are suggested for this
purpose.
5 Apparatus
5.1 Oven
The oven shall be
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.