EN ISO 4611:2008

SLOVENSKI STANDARD
01-februar-2009
1DGRPHãþD
SIST EN ISO 4611:2000
Polimerni materiali - Ugotavljanje vplivov vlažne toplote, vodne prhe in slane
megle (ISO 4611:2008)
Plastics - Determination of the effects of exposure to damp heat, water spray and salt
mist (ISO 4611:2008)
Kunststoffe - Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima,
Sprühwasser und Salznebel (ISO 4611:2008)
Plastiques - Détermination des effets d'une exposition à la chaleur humide, au brouillard
d'eau et au brouillard salin (ISO 4611:2008)
Ta slovenski standard je istoveten z: EN ISO 4611:2008
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 4611
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2008
ICS 83.080.01 Supersedes EN ISO 4611:1999
English Version
Plastics - Determination of the effects of exposure to damp heat,
water spray and salt mist (ISO 4611:2008)
Plastiques - Détermination des effets d'une exposition à la Kunststoffe - Bestimmung des Verhaltens bei Einwirkung
chaleur humide, au brouillard d'eau et au brouillard salin von warmfeuchtem Klima, Sprühwasser und Salznebel
(ISO 4611:2008) (ISO 4611:2008)
This European Standard was approved by CEN on 18 September 2008.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4611:2008: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 4611:2008) has been prepared by Technical Committee ISO/TC 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 April 2009, and conflicting national standards shall be withdrawn at the
latest by April 2009.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 4611:1999.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 4611:2008 has been approved by CEN as a EN ISO 4611:2008 without any modification.

INTERNATIONAL ISO
STANDARD 4611
Third edition
2008-10-15
Plastics — Determination of the effects of
exposure to damp heat, water spray and
salt mist
Plastiques — Détermination des effets d'une exposition à la chaleur
humide, au brouillard d'eau et au brouillard salin

Reference number
ISO 4611:2008(E)
©
ISO 2008
ISO 4611:2008(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2008
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2008 – All rights reserved

ISO 4611:2008(E)
Contents Page
Foreword. iv
0 Introduction . v
1 Scope . 1
2 Normative references . 1
3 Principle. 1
4 General test conditions. 2
4.1 Environmental conditions and equipment. 2
4.2 Duration of tests . 3
4.3 Test specimens . 3
4.4 Conditioning. 3
4.5 Treatment after exposure. 4
5 Change in mass . 4
5.1 General. 4
5.2 Test specimens . 5
5.3 Conditioning. 5
5.4 Procedure . 5
5.5 Expression of results . 6
6 Change in dimensions and appearance.6
6.1 General. 6
6.2 Test specimens . 6
6.3 Conditioning. 6
6.4 Procedure . 7
6.5 Expression of results . 7
7 Change in other physical properties . 8
7.1 General. 8
7.2 Test specimens . 8
7.3 Conditioning. 8
7.4 Procedure . 8
7.5 Expression of results . 9
8 Test report . 9
Annex A (informative) Absorption of moisture by a test specimen of a plastics material in
equilibrium with its conditioning atmosphere. 10
Bibliography . 11

ISO 4611:2008(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 4611 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical
and environmental resistance.
This third edition cancels and replaces the second edition (ISO 4611:1987), of which it constitutes a minor
revision, the main purpose of which was to update the normative references.
iv © ISO 2008 – All rights reserved

ISO 4611:2008(E)
0 Introduction
0.1 Various test methods are available for the exposure of plastics to different aggressive agents acting in a
combined and simultaneous fashion, such as natural weathering. Other test methods are available for the
purpose of a separate evaluation of the action of individual aggressive agents. Among the latter there are, for
example, tests for the resistance to specific chemicals and to radiation in a definite spectral range.
For some applications, it may be desirable to evaluate the behaviour of the materials in a hot damp
atmosphere just below the saturation limit of water vapour, as well as in the presence of the liquid phase.
In these conditions, not only water absorption or leaching of some ingredients of the composition may be
observed but also degradation phenomena due to hydrolysis, exudation of plasticizers, etc.
It may also be desirable sometimes to evaluate the behaviour of materials in the presence of a highly
corrosive electrolyte, such as a sodium chloride solution (salt mist), which is the principal aggressive agent
present in marine environments and of particular importance in the case of nautical applications. It is well
known that sodium chloride has no noticeable action on the polymers that are the basic components of
plastics, and that salt solutions, owing to their
...