SIST EN ISO 4611:2011
(Main)Plastics - Determination of the effects of exposure to damp heat, water spray and salt mist (ISO 4611:2010)
Plastics - Determination of the effects of exposure to damp heat, water spray and salt mist (ISO 4611:2010)
This International Standard specifies the conditions of exposure of plastics to - damp heat, - water spray, - salt mist, and the methods for the evaluation of the change in some significant characteristics after given exposure stages. This International Standard is, in general, suitable for all plastics in the form of standard test specimens, and finished articles or parts thereof. This International Standard considers separately methods for the determination of - change in mass, - change in dimensions and appearance, - change in physical properties.
Kunststoffe - Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima, Sprühwasser und Salznebel (ISO 4611:2010)
1.1 Diese Internationale Norm legt die Bedingungen für Beanspruchung von Kunststoffen durch
warmfeuchtes Klima,
Sprühwasser,
Salznebel
und die Verfahren zur Bewertung der Veränderung aussagekräftiger Eigenschaften nach vorgegebenen Beanspruchungsstufen fest.
1.2 Diese Internationale Norm ist allgemein anwendbar auf alle Kunststoffe in Form genormter Probekörper sowie auf Fertigartikel oder Teile von diesen.
1.3 Diese Internationale Norm beschreibt im Einzelnen Verfahren für die Bestimmung von
Masseänderung,
Änderung der Maße und des Aussehens,
Änderung physikalischer Eigenschaften.
Plastiques - Détermination des effets d'une exposition à la chaleur humide, au brouillard d'eau et au brouillard salin (ISO 4611:2010)
L'ISO 4611:2010 spécifie les conditions d'exposition des plastiques
à la chaleur humide,
au brouillard d'eau,
au brouillard salin,
et les méthodes de détermination des variations de quelques caractéristiques particulièrement significatives, après des périodes d'exposition données.
L'ISO 4611:2010 est, en général, applicable à tous les plastiques sous forme d'éprouvettes normalisées et de produits finis ou de leurs éléments.
Elle envisage séparément les méthodes de détermination
de la variation de la masse,
de la variation des dimensions et du changement d'aspect,
de la variation des caractéristiques physiques.
Polimerni materiali - Ugotavljanje vplivov vlažne toplote, vodne prhe in slane megle (ISO 4611:2010)
Ta mednarodni standard določa okoliščine izpostavljenosti polimernih materialov – vlažni toploti, - vodni prhi, - slani megli in metode za vrednotenje sprememb nekaterih pomembnih lastnosti po določenih stopnjah izpostavljenosti. Ta mednarodni standard je v splošnem primeren za vse polimerne materiale v obliki standardnih preskušancev in končnih proizvodov ali njihovih delov. Ta mednarodni standard ločeno obravnava metode za ugotavljanje – spremembe mase, - spremembe mer in videza, -spremembe fizikalnih lastnosti.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4611:2011
01-november-2011
1DGRPHãþD
SIST EN ISO 4611:2009
Polimerni materiali - Ugotavljanje vplivov vlažne toplote, vodne prhe in slane
megle (ISO 4611:2010)
Plastics - Determination of the effects of exposure to damp heat, water spray and salt
mist (ISO 4611:2010)
Kunststoffe - Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima,
Sprühwasser und Salznebel (ISO 4611:2010)
Plastiques - Détermination des effets d'une exposition à la chaleur humide, au brouillard
d'eau et au brouillard salin (ISO 4611:2010)
Ta slovenski standard je istoveten z: EN ISO 4611:2010
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST EN ISO 4611:2011 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 4611:2011
---------------------- Page: 2 ----------------------
SIST EN ISO 4611:2011
EUROPEAN STANDARD
EN ISO 4611
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2010
ICS 83.080.01 Supersedes EN ISO 4611:2008
English Version
Plastics - Determination of the effects of exposure to damp heat,
water spray and salt mist (ISO 4611:2010)
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 4611:2010) (ISO 4611:2010)
This European Standard was approved by CEN on 14 December 2010.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4611:2010: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 4611:2011
EN ISO 4611:2010 (E)
Contents Page
Foreword .3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 4611:2011
EN ISO 4611:2010 (E)
Foreword
This document (EN ISO 4611:2010) 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 June 2011, and conflicting national standards shall be withdrawn at
the latest by June 2011.
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 4611:2008.
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, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 4611:2010 has been approved by CEN as a EN ISO 4611:2010 without any modification.
3
---------------------- Page: 5 ----------------------
SIST EN ISO 4611:2011
---------------------- Page: 6 ----------------------
SIST EN ISO 4611:2011
INTERNATIONAL ISO
STANDARD 4611
Fourth edition
2010-12-15
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 4611:2010(E)
©
ISO 2010
---------------------- Page: 7 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(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.
COPYRIGHT PROTECTED DOCUMENT
© ISO 2010
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 2010 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(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 Equipment requirements .2
4.2 Exposure conditions.3
4.3 Test specimens (see 5.2, 6.2 and 7.2) .5
5 Change of mass.5
5.1 General .5
5.2 Test specimens.6
5.3 Conditioning .7
5.4 Procedure.7
5.5 Expression of results.7
6 Change of dimensions and appearance .7
6.1 General .7
6.2 Test specimens.8
6.3 Conditioning .8
6.4 Procedure.8
6.5 Expression of results.8
7 Change of other physical properties.9
7.1 General .9
7.2 Test specimens.9
7.3 Conditioning .9
7.4 Procedure.10
7.5 Expression of results.10
8 Test report.10
Annex A (informative) Absorption of moisture by a test specimen of a plastics material in
equilibrium with its conditioning atmosphere .11
Bibliography.12
© ISO 2010 – All rights reserved iii
---------------------- Page: 9 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(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 fourth edition cancels and replaces the third edition (ISO 4611:2008), which has been technically revised.
The main changes concern the equipment requirements and exposure conditions specified in Clause 4.
iv © ISO 2010 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(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 radiations of 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 higher osmotic pressure, are normally absorbed by plastics to a
lesser degree than pure water, but it cannot be assumed a priori that they have no action on composite
materials, containing fillers, reinforcing components or pigments, for instance.
Furthermore, the evaluation of the effect of salt mist can be very important for finished or semi-finished articles
which, while basically consisting of plastic materials, do contain some metallic elements, such as moulded-in
inserts, thin laminated foils, surface coatings applied by electro-plating or other procedures, or, lastly, metal
cores sheathed with plastics by extrusion or by dipping in pastes or fluidized-bed powders.
0.2 Methods and equipment for obtaining reproducible aggressive environments of the above types are well
known and have been described by International Standards relevant to other materials and IEC (International
Electrotechnical Commission) standards relevant to electrical and electronic components. The same
equipment and procedures described in these standards can also be employed for plastics, with appropriate
care and adjustments.
0.3 The present International Standard is intended to provide general guidance only, on the choice of
suitable equipment and procedures for obtaining the exposure conditions described above and for the
preparation of test specimens. It also only gives general guidance on the properties to be evaluated. Specific
details are given in the various ISO and IEC publications.
For the expression of results, the present International Standard follows, as far as possible, the same criteria
adopted in the existing test methods for the exposure to chemicals (see ISO 175) and to natural weathering or
artificial light (see ISO 4582).
0.4 These tests are intended to yield data about the effects of the described exposures on the materials;
however, a direct correlation between the experimental results and the behaviour in service is not to be
inferred.
© ISO 2010 – All rights reserved v
---------------------- Page: 11 ----------------------
SIST EN ISO 4611:2011
---------------------- Page: 12 ----------------------
SIST EN ISO 4611:2011
INTERNATIONAL STANDARD ISO 4611:2010(E)
Plastics — Determination of the effects of exposure to damp
heat, water spray and salt mist
1 Scope
1.1 This International Standard specifies the conditions of exposure of plastics to
⎯ damp heat,
⎯ water spray,
⎯ salt mist,
and the methods for the evaluation of the change in some significant characteristics after given exposure
stages.
1.2 This International Standard is, in general, suitable for all plastics in the form of standard test specimens,
and finished articles or parts thereof.
1.3 This International Standard considers separately methods for the determination of
⎯ change in mass,
⎯ change in dimensions and appearance,
⎯ change in physical properties.
2 Normative references
The following referenced documents are indispensable for the application 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 62, Plastics — Determination of water absorption
3 Principle
One or more properties are determined before and after given periods of exposure in the specified
environmental conditions, and any change in appearance is observed. If required, the determination of one or
more properties may be carried out after exposure and a subsequent drying treatment or a reconditioning
treatment carried out with the aim of obtaining the same state of equilibrium with atmospheric humidity as that
of the initial specimens.
© ISO 2010 – All rights reserved 1
---------------------- Page: 13 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(E)
4 General test conditions
4.1 Equipment requirements
4.1.1 General
Equipment used for exposing specimens to steady state or cyclic exposure conditions involving heat, humidity,
and water or salt spray shall be made from corrosion resistant materials that will not interact with or
contaminate the specimens being exposed. In addition, the device shall provide a means to programme and
time the various portions of the exposure cycles that are used.
Sensing devices for measurement of temperature and relative humidity shall be located within the working
volume of the chamber.
Any condensed water shall be continuously drained from the chamber and not re-used until re-purified.
No condensed water from the walls or roof of the chamber can fall on the test specimens.
Water used for the maintenance of the chamber humidity shall have a resistivity of at least 0,05 MΩ cm.
For the water spray (see 4.2.2) and salt mist (see 4.2.3) tests, the following additional equipment requirements
3
shall be met. The cabinet shall have a volume of not less than 0,4 m since, with smaller volumes, difficulties
have been experienced in ensuring an even distribution of spray. For large-volume cabinets, it is nevertheless
necessary to ensure that the spray is distributed homogeneously throughout the cabinet. The upper parts of
the inside of the cabinet shall be designed so that any drops of spray which form on its surface cannot fall on
the specimens being tested.
For the salt mist test (see 4.2.3), the apparatus should, for environmental reasons, preferably be fitted with
equipment for treating the salt mist after the test, prior to releasing it to the atmosphere, and also with
equipment for treating the salt water produced during the test, prior to discharging it to the sewage system.
For the water spray (see 4.2.2) and salt mist (see 4.2.3) tests, the device for spraying the water or salt solution
shall include a supply of compressed air, a reservoir containing the water or salt solution to be sprayed, and
one or more atomizers. Before it reaches the atomizers, the compressed air shall be passed through a filter to
remove all traces of oil and solid matter, and the atomization shall be carried out at an overpressure of about
70 kPa. The level of the water or salt solution shall be maintained automatically. In order to prevent
evaporation of water from the sprayed droplets, the compressed air shall be humidified, before entering the
atomizer, by passing it through a saturation tower containing distilled or deionized water at a temperature
10 °C above that of the cabinet.
For the salt mist test (see 4.2.3), the characteristics of the mist produced will depend on the pressure used
and on the type of atomizer nozzle. These shall be adjusted so that the concentration of the salt mist in the
cabinet (as measured by the rate of deposition of the mist on a collection surface) and the salt concentration
in the mist are kept within the limits specified in 4.2.3.
NOTE ISO 9142:2003, Annex E, describes exposure conditions similar to those used in this International Standard.
4.1.2 Temperature
The exposure cabinet shall be capable of controlling the temperature in the exposure chamber to within ±2 °C
of the desired equilibrium temperature. The temperature tolerance limits of ±2 °C are intended to allow for any
systematic measurement errors, any temperature drift and any variations in temperature at different points in
the chamber. However, in order to maintain the relative humidity throughout the chamber within the required
tolerances, it is necessary to keep the temperature difference between any two points in the chamber at any
given time within narrower limits. Specimens being exposed in the chamber shall not be subjected to radiant
heat from the chamber temperature-control devices.
The chamber temperature shall be measured at least 100 mm from the walls.
2 © ISO 2010 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(E)
4.2 Exposure conditions
4.2.1 Damp heat
4.2.1.1 General
The preferred exposure conditions correspond to those described in the IEC publications referred to in 4.2.1.2
and 4.2.1.3. Different temperature and/or humidity conditions may be used, however, if specified in the
relevant product specifications or by agreement between the interested parties.
4.2.1.2 Steady state test
Unless otherwise specified, the chamber shall be at ambient laboratory temperature and humidity at the start
of the test. Place the conditioned specimens (see 4.3.1) in the chamber and adjust the controls to produce the
following conditions:
+2
temperature: 40 °C;
−1
+4
relative humidity: 93 %.
−8
As the chamber temperature is increasing to 40 °C, the rate of temperature change shall not exceed 1 °C/min,
averaged over a period of not more than 5 min. During the heating-up period, condensation shall not occur on
the specimens.
Once the specified temperature is reached, adjust the relative humidity to the specified level within no more
than 2 h.
The period of exposure shall be as specified by the specification covering the material or product being tested.
When not specified, this period shall be agreed upon by the interested parties. Recommended periods of
exposure are 12 h, 16 h, 24 h, 48 h, 96 h and 240 h.
NOTE The conditions given in this subclause correspond to those specified in IEC 60068-2-78:2001.
4.2.1.3 Cyclic test
This test takes the chamber and specimens through a number of 24 h cycles during which the temperature
shall be maintained at an upper value and at (25 ± 3) °C. One of the following two temperatures shall be
chosen as the upper temperature:
a) (40 ± 1) °C (in which case the number of cycles shall be 2, 6, 12, 21 or 56);
b) (55 ± 1) °C (in which case the number of cycles shall be 1, 2 or 6).
The upper temperature shall be reached within the first 3 h ± 30 min of each 24 h cycle. During this
temperature increase, the relative humidity shall not drop below 95 %, except during the last 15 min when the
relative humidity may drop below 95 % but not below 90 %. During the temperature increase, condensation on
the specimens is allowed.
In the following hours, the temperature shall be maintained at the upper value chosen and the relative
humidity shall be maintained at (93 ± 4) %.
After 12 h of the 24 h cycle, the temperature shall be allowed to decrease, within 3 h to 6 h, to the lower
temperature of (25 ± 3) °C. During this temperature decrease, the relative humidity shall not drop below 80 %.
For the rest of the 24 h cycle, the temperature shall be maintained at (25 ± 3) °C and the relative humidity
shall not be less than 95 %.
© ISO 2010 – All rights reserved 3
---------------------- Page: 15 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(E)
NOTE 1 The conditions given in this subclause correspond to those specified in IEC 60068-2-30:2005 (using variant 2
for the temperature decrease part of the cycle).
NOTE 2 For composite temperature/humidity cycles, with the addition of a number of excursions to sub-zero
temperatures, guidance can be found in IEC 60068-2-38.
4.2.2 Water spray
The main difference between this exposure condition and that for damp heat/steady state (see 4.2.1.2) is the
constant presence of the liquid phase, in the form of small water droplets.
Suitable equipment for obtaining these conditions is substantially identical to that for the salt mist exposure
(see 4.2.3) and is described in the relevant specifications.
Distilled or deionized water, having a pH between 6 and 7, shall be used instead of the salt solution.
The temperature in the test enclosure shall be (40 ± 2) °C.
4.2.3 Salt mist
Dissolve a sufficient mass of sodium chloride in distilled or deionized water with a conductivity not higher than
20 μS/cm at (25 ± 2) °C to produce a concentration of (50 ± 5) g/l. The specific-gravity range for a (50 ± 5) g/l
solution is 1,029 to 1,036 at 25 °C.
The sodium chloride shall contain less than 0,001 % by mass of copper and less than 0,001 % by mass of
nickel, as determined by atomic absorption spectrophotometry or another analytical method of similar
sensitivity. It shall not contain more than 0,1 % by mass of sodium iodide or more than 0,5 % by mass of total
impurities, calculated with respect to the dry salt.
Adjust the pH of the salt solution so that the pH of the salt mist collected in the chamber (see below) is
between 6,5 and 7,2 at (25 ± 2) °C. Check the pH by electrometric measurement or, for routine checks, using
short-range pH paper which can be read in increments or 0,3 pH-units or less. Make any necessary correction
by adding hydrochloric acid, sodium hydroxide or sodium bicarbonate solution prepared from analytical-grade
reagents.
The temperature inside the cabinet shall be (35 ± 2) °C.
The chamber shall contain at least two devices for collecting salt mist. These devices shall include a
2
horizontal surface of area 80 cm on which mist will be deposited during the exposure. They shall be placed
so that only mist, and not liquid falling from specimens or from parts of the cabinet, is collected. They shall be
used to ensure that the following requirements are met:
⎯ the average collection rate shall be 1 ml/h to 2 ml/h when measured over a period of at least 16 h;
⎯ the pH of the mist collected shall be between 6,5 and 7,2 at (25 ± 2) °C (see above);
⎯ the sodium chloride concentration in the mist collected shall be (50 ± 5) g/l.
NOTE 1 The conditions given in this subclause correspond to those specified in ISO 9227:2006 and
IEC 60068-2-11:1981.
NOTE 2 In this test, the exposure temperature used is 35 °C, even though this temperature is not included among
those recommended in ISO 3205, because it is specified in ISO 9227 and in the majority of existing national standards.
The period of exposure shall be as specified by the specification covering the material or product being tested.
When not specified, this period shall be agreed upon by the interested parties. Recommended periods of
exposure are 2 h, 6 h, 24 h, 48 h, 96 h, 168 h, 240 h, 480 h, 720 h and 1 000 h.
4 © ISO 2010 – All rights reserved
---------------------- Page: 16 ----------------------
SIST EN ISO 4611:2011
ISO 4611:2010(E)
4.3 Test specimens (see 5.2, 6.2 and 7.2)
4.3.1 Conditioning
Unless otherwise agreed by the interested parties, the test specimens shall be conditioned before testing for
at least 86 h at (23 ± 2) °C and (50 ± 10) % RH.
For certain materials which are known to approach rapidly, or on the contrary very slowly, the state of
equilibrium of temperature and, above all, of humidity, shorter or longer conditioning periods may be specified
in the particular specifications concerning them (see Annex A).
4.3.2 Treatment after exposure
4.3.2.1 General
The exposed specimens shall be tested either
a) directly after the exposure, or
b) after the exposure and subsequent drying or reconditioning.
The first procedure shall be used when it is required to know the state of the material while it still contains the
amount of water it had absorbed by the end of the exposure. The second procedure shall be used when it is
required to determine the changes in properties of the
...
SLOVENSKI STANDARD
oSIST prEN ISO 4611:2010
01-maj-2010
Polimerni materiali - Ugotavljanje vplivov vlažne toplote, vodne prhe in slane
megle (ISO/DIS 4611:2010)
Plastics - Determination of the effects of exposure to damp heat, water spray and salt
mist (ISO/DIS 4611:2010)
Kunststoffe - Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima,
Sprühwasser und Salznebel (ISO/DIS 4611:2010)
Plastiques - Détermination des effets d'une exposition à la chaleur humide, au brouillard
d'eau et au brouillard salin (ISO/DIS 4611:2010)
Ta slovenski standard je istoveten z: prEN ISO 4611
ICS:
83.080.01 Polimerni materiali na Plastics in general
splošno
oSIST prEN ISO 4611:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 4611:2010
---------------------- Page: 2 ----------------------
oSIST prEN ISO 4611:2010
EUROPEAN STANDARD
DRAFT
prEN ISO 4611
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2010
ICS 83.080.01 Will supersede EN ISO 4611:2008
English Version
Plastics - Determination of the effects of exposure to damp heat,
water spray and salt mist (ISO/DIS 4611:2010)
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/DIS 4611:2010) (ISO/DIS 4611:2010)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 249.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Croatia, 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.
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.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 4611:2010: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN ISO 4611:2010
prEN ISO 4611:2010 (E)
Contents Page
Foreword .3
2
---------------------- Page: 4 ----------------------
oSIST prEN ISO 4611:2010
prEN ISO 4611:2010 (E)
Foreword
This document (prEN ISO 4611:2010) 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 document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 4611:2008.
Endorsement notice
The text of ISO/DIS 4611:2010 has been approved by CEN as a prEN ISO 4611:2010 without any
modification.
3
---------------------- Page: 5 ----------------------
oSIST prEN ISO 4611:2010
---------------------- Page: 6 ----------------------
oSIST prEN ISO 4611:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 4611
ISO/TC 61/SC 6 Secretariat: DIN
Voting begins on: Voting terminates on:
2010-01-07 2010-06-07
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
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
[Revision of third edition (ISO 4611:2008)]
ICS 83.080.01
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est distribué
en version anglaise seulement.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED 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 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 NATIONAL REGULATIONS.
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.
©
International Organization for Standardization, 2010
---------------------- Page: 7 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
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.
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user's country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, photocopying,
recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to 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
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
©
ii ISO 2010 – All rights reserved
---------------------- Page: 8 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
Contents Page
Foreword .v
0 Introduction.vi
1 Scope.1
2 Normative references.1
3 Principle.1
4 General test conditions.2
4.1 Equipment requirements .2
4.1.1 General .2
4.1.2 Temperature.2
4.2 Exposure conditions.3
4.2.1 Damp heat .3
4.2.2 Water spray .4
4.2.3 Salt mist.4
4.3 Duration of tests.4
4.4 Test specimens.5
4.5 Conditioning .5
4.6 Treatment after exposure .5
4.6.1 General .5
4.6.2 Test after exposure only.5
4.6.3 Test after exposure and drying or reconditioning.5
5 Change of mass.6
5.1 General .6
5.2 Test specimens.6
5.2.1 General .6
5.2.2 Moulding and extrusion compounds .6
5.2.3 Sheet.6
5.2.4 Semi-finished and finished products (other than sheets).7
5.2.5 Number of test specimens.7
5.3 Conditioning .7
5.4 Procedure.7
5.5 Expression of results.7
6 Change of dimensions and appearance .8
6.1 General .8
6.2 Test specimens.8
6.3 Conditioning .8
6.4 Procedure.8
6.5 Expression of results.8
7 Change of other physical properties.9
7.1 General .9
7.2 Test specimens.10
7.3 Conditioning .10
7.4 Procedure.10
7.5 Expression of results.10
8 Test report.10
Annex A (informative) Absorption of moisture by a test specimen of a plastics material in
equilibrium with its conditioning atmosphere .12
Bibliography.13
© ISO 2009 – All rights reserved iii
DRAFT 2010
---------------------- Page: 9 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
iv © ISO 2009 – All rights reserved
DRAFT 2010
---------------------- Page: 10 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
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 second/third/. edition cancels and replaces the first/second/. edition (), [clause(s) / subclause(s) /
table(s) / figure(s) / annex(es)] of which [has / have] been technically revised.
ISO 4611 was prepared by Technical Committee ISO/TC 61, Plastics.
Users should note that all international Standards undergo revision from time to time and that any reference
made herein to any other International Standard implies its latest edition, unless otherwise stated.
© ISO 2009 – All rights reserved v
DRAFT 2010
---------------------- Page: 11 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
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 radiations of 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 higher osmotic pressure, are normally absorbed by plastics to a
lesser degree than pure water, but it cannot be assumed a priori that they have no action on composite
materials, containing fillers, reinforcing components or pigments, for instance.
Furthermore, the evaluation of the effect of salt mist can be very important for finished or semi-finished articles
which, while basically consisting of plastic materials, do contain some metallic elements, such as moulded-in
inserts, thin laminated foils, surface coatings applied by electro-plating or other procedures, or, lastly, metal
cores sheathed with plastics by extrusion or by dipping in pastes or fluidized-bed powders.
0.2 Methods and equipment for obtaining reproducible aggressive environments of the above types are well
known and have been described by International Standards relevant to other materials and IEC (International
Electrotechnical Commission) standards relevant to electrical and electronic components. The same
equipment and procedures described in these standards can also be employed for plastics, with appropriate
care and adjustments.
0.3 The present International Standard is intended to provide general guidance only, on the choice of
suitable equipment and procedures for obtaining the exposure conditions described above and for the
preparation of test specimens. It also only gives general guidance on the properties to be evaluated. Specific
details are given in the various ISO and IEC Publications.
For the expression of results, the present International Standard follows, as far as possible, the same criteria
adopted in the existing test methods for the exposure to chemicals (see ISO 175) and to natural weathering or
artificial light (see ISO 4582).
0.4 These tests are intended to yield data about the effects of the described exposures on the materials;
however, a direct correlation between the experimental results and the behaviour in service is not to be
inferred.
vi © ISO 2009 – All rights reserved
DRAFT 2010
---------------------- Page: 12 ----------------------
oSIST prEN ISO 4611:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 4611
Plastics — Determination of the effects of exposure to damp
heat, water spray and salt mist
1 Scope
1.1 This International Standard specifies the exposure conditions of plastics to
⎯ damp heat,
⎯ water spray,
⎯ salt mist,
and the methods for the evaluation of the change of some significant characteristics after given exposure
stages.
1.2 This International Standard is, in general, suitable for all plastics in the form of standard test specimens,
and finished articles or parts thereof.
1.3 This International Standard considers separately methods for the determination of
⎯ change in mass,
⎯ change in dimensions and appearance,
⎯ change in physical properties.
2 Normative references
The following referenced documents are indispensable for the application 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 175, Plastics - Methods of test for the determination of the effects of immersion in liquid chemicals
ISO 4582, Plastics - Determination of changes in colour and variations in properties after exposure to daylight
under glass, natural weathering or laboratory light sources
3 Principle
One or more properties are determined before and after given periods of exposure in the specified
environmental conditions, and any change in appearance is observed. If required, the determination of one or
more properties may be carried out after exposure and a subsequent drying treatment or a reconditioning
treatment carried out with the aim of obtaining the same state of equilibrium with atmospheric humidity as that
of the initial specimens.
© ISO 2009 – All rights reserved 1
DRAFT 2010
---------------------- Page: 13 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
4 General test conditions
4.1 Equipment requirements
4.1.1 General
Equipment used for exposing specimens to steady state or cyclic exposure conditions involving heat,
humidity, and water or salt spray shall be made from corrosion resistant materials that will not interact with or
contaminate the specimens being exposed. In addition, the device shall provide a means to program and
time the various portions of the exposure cycles that are used.
Sensing devices for measurement of temperature and relative humidity shall be located within the working
volume of the chamber.
Any condensed water shall be continuously drained from the chamber and not re-used until re-purified.
No condensed water from the walls or roof of the chamber can fall on the test specimens.
Water used for the maintenance of chamber humidity shall have a resistivity of at least 0,05 MΩcm.
For tests according to 4.2.2 and 4.2.3, additional equipment requirements are to be met. The cabinet shall
have a capacity of not less than 0,4 m³ since, with smaller volumes, difficulties have been experienced in
ensuring an even distribution of spray. For large-capacity cabinets, it is necessary to ensure that the
conditions of homogeneity and distribution of the spray are met. The upper parts of the cabinet shall be
designed so that drops of sprayed solution formed on its surface do not fall on the specimens being tested.
For tests according to 4.2.3, it is preferred that the apparatus has a means to properly treat the fog after the
test, prior to releasing it from the building for environmental conservation, and also to drain water prior to
discharging it to the drainage system.
For tests according to 4.2.2 and 4.2.3, the device for spraying the water or salt solution comprises a supply of
clean air, of controlled pressure and humidity, a reservoir to contain the solution to be sprayed, and one or
more atomizers. The compressed air supplied to the atomizers shall be passed through a filter to remove all
traces of oil or solid matter, and the atomizing pressure shall be at an overpressure of about 70 kPa. The
level of the water shall be maintained automatically to ensure adequate humidification. In order to prevent
evaporation of water from the sprayed droplets, the air shall be humidified before entering the atomizer, by
passage through a saturation tower containing hot distilled water or deionized water at a temperature 10 °C
above that of the cabinet.
For tests according to 4.2.3, the appropriate temperature depends on the pressure used and on the type of
atomizer nozzle and shall be adjusted so that the rate of collection of spray in the cabinet, and the
concentration of the collected spray, are kept within the specified limits.
NOTE Annex E of ISO 9142, Adhesives — Guide to the selection of standard laboratory ageing conditions for testing
bonded joints describes test conditions similar to those used in this standard.
4.1.2 Temperature
The chamber shall be able to control temperature within ± 2 K of the desired equilibrium temperature. The
total temperature tolerance of ± 2 K is intended to take account of the absolute errors in the measurement,
slow changes of temperature and temperature variations within the chamber. However, in order to maintain
relative humidity within required tolerances, it is necessary to keep the temperature difference between any
two points within the chamber at any moment to narrower limits. Specimens being exposed within the
chamber shall not be subjected to radiant heat from the chamber conditioning devices.
The temperature shall be measured at least 100 mm from the walls.
2 © ISO 2009 – All rights reserved
DRAFT 2010
---------------------- Page: 14 ----------------------
oSIST prEN ISO 4611:2010
ISO/DIS 4611
4.2 Exposure conditions
4.2.1 Damp heat
4.2.1.1 General
The preferred test conditions are those described by the IEC Publications referred to in 4.2.1.2 and 4.2.1.3.
Different temperature and/or humidity conditions may be specified, however, in the relevant product
specifications or by agreement between the interested parties.
4.2.1.2 Steady state test
Unless otherwise specified, the chamber and the specimens shall be at ambient laboratory conditions at the
start of the test. Place the specimens in the chamber and adjust the device to produce the following
conditions.
+2
Temperature: (40 ) °C
-1
+4
Relative humidity: (93 ) %
-8
Once the chamber is turned on, the rate of temperature change shall not exceed 1 K/min, averaged over a
period of not more than 5 minutes. During this period, condensation shall not occur on the specimens.
Once the specified temperature is reached, adjust relative humidity to the specified level within no more than 2
h.
Operate the device at the conditions given above for the time required in the relevant specification. If no time
is specified, the exposure time shall be agreed upon by all interested parties. In this case, it is recommended
that the time periods be chosen from the following standard scale: 12, 16, 24, 48, 96, 240 h.
Note These conditions comply with IEC 60068-2-78.
4.2.1.3 Cyclic test
A number of 24-h-cycles has to be passed through, whereas the temperature has to be maintained at an
upper value and at (25 ± 3) °C. The upper temperature limit shall be chosen between:
a) (40 ±1) °C (number of cycles: 2, 6, 12, 21, or 56)
b) (55 ±1) °C (number of cycles: 1, 2, or 6
Within the first 3 h ± 30 min of each 24-h-cycle, the upper temperature shall be reached. During this
temperature increase, the relative humidity must not drop below 95 %RH, excepting the last 15 minutes, when
the relative humidity must not drop below 90 %RH. During this temperature increase, condensation on the
samples is allowed.
In the following hours, the upper temperature and a relative humidity of (93 ±4) %RH have to maintained.
After 12 h of the 24-h-cycle, the upper temperature level is turned off to reach the lower temperature limit of
(25 ± 3) °C within the following 3 to 6 h. During this temperature decrease, the relative humidity must not drop
below 80 %RH.
The rest of the 24-h-cycle, temperature is maintained at (25 ± 3) °C, relative humidity must not be less than
95 %RH.
Note 1 These conditions comply with IEC 60068-2-30, variant 2.
NOTE 2 For composite temperature/humidity cycles, with t
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.