DIN EN ISO 4611-2011 Plastics - Determination of the effects of exposure to damp heat water spray and salt mist (ISO 4611 2010) German version EN ISO 4611 2010《塑料 曝露于湿热 水喷淋和盐雾的效果测定.pdf

《DIN EN ISO 4611-2011 Plastics - Determination of the effects of exposure to damp heat water spray and salt mist (ISO 4611 2010) German version EN ISO 4611 2010《塑料 曝露于湿热 水喷淋和盐雾的效果测定.pdf》由会员分享，可在线阅读，更多相关《DIN EN ISO 4611-2011 Plastics - Determination of the effects of exposure to damp heat water spray and salt mist (ISO 4611 2010) German version EN ISO 4611 2010《塑料 曝露于湿热 水喷淋和盐雾的效果测定.pdf（18页珍藏版）》请在麦多课文档分享上搜索。

1、April 2011 Translation by DIN-Sprachendienst.English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS

2、83.080.01!$nwq“1758478www.din.deDDIN EN ISO 4611Plastics Determination of the effects of exposure to damp heat, water spray andsalt mist (ISO 4611:2010)English translation of DIN EN ISO 4611:2011-04Kunststoffe Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima, Sprhwasser undSalznebel (

3、ISO 4611:2010)Englische bersetzung von DIN EN ISO 4611:2011-04Plastiques Dtermination des effets dune exposition la chaleur humide, au brouillard deau et aubrouillard salin (ISO 4611:2010)Traduction anglaise de DIN EN ISO 4611:2011-04SupersedesDIN EN ISO 4611:2009-02www.beuth.deIn case of doubt, the

4、 German-language original shall be considered authoritative.03.11Document comprises pages18DIN EN ISO 4611:2011-04 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: ANSI, USA) in collaboration with Techn

5、ical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-01-04 AA Verhalten gegen Umgebungseinflsse. The DIN Standard corresponding to the Int

6、ernational Standard referred to in Clause 2 of this document is as follows: ISO 62 DIN EN ISO 62 Amendments This standard differs from DIN EN ISO 4611:2009-02 as follows: a) the standard has been editorially revised; b) normative references have been updated; c) Subclause 4.1.2 “Temperature” has bee

7、n added (subsequent subclauses have been renumbered); d) the test conditions in Subclause 4.2.1.2 “Steady state test” (previously 4.1.1.2) and Subclause 4.2.1.3 “Cyclic test” (previously 4.1.1.3) have been given in more detail; e) Subclause 4.2.3 “Salt mist” (previously 4.1.3) has been rendered more

8、 precise; f) in Subclause 4.3.2 “Treatment after exposure” (previously 4.5), the tolerance of the relative humidity has been increased. Previous editions DIN EN ISO 4611: 2000-05, 2009-02 National Annex NA (informative) Bibliography 2 DIN EN ISO 62, Plastics Determination of water absorption EUROPEA

9、N STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4611 December 2010 ICS 83.080.01 Supersedes EN ISO 4611:2008English Version Plastics - Determination of the effects of exposure to damp heat, water spray and salt mist (ISO 4611:2010) Plastiques - Dtermination des effets dune exposition la chaleur hu

10、mide, au brouillard deau et au brouillard salin (ISO 4611:2010) Kunststoffe - Bestimmung des Verhaltens bei Einwirkung von warmfeuchtem Klima, Sprhwasser und Salznebel (ISO 4611:2010) This European Standard was approved by CEN on 14 December 2010. CEN members are bound to comply with the CEN/CENELEC

11、 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 t

12、o 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 offici

13、al 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, Slova

14、kia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide

15、for CEN national Members. Ref. No. EN ISO 4611:2010: EContents Page Foreword iv 0 Introductionv 1 Scope1 2 Normative references1 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 Genera

16、l .5 5.2 Test specimens6 5.3 Conditioning 7 5.4 Procedure.7 5.5 Expression of results7 6 Change of dimensions and appearance .7 6.1 General .7 6.2 Test specimens8 6.3 Conditioning 8 6.4 Procedure.8 6.5 Expression of results8 7 Change of other physical properties.9 7.1 General .9 7.2 Test specimens9

17、7.3 Conditioning 9 7.4 Procedure.10 7.5 Expression of results10 8 Test report10 Annex A (informative) Absorption of moisture by a test specimen of a plastics material in equilibrium with its conditioning atmosphere .11 Bibliography12 2DIN EN ISO 4611:2011-04 EN ISO 4611:2010 (E) Foreword This docume

18、nt (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

19、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

20、 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, Cz

21、ech 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 4611:201

22、0 has been approved by CEN as a EN ISO 4611:2010 without any modification. 3DIN EN ISO 4611:2011-04 EN 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 we

23、athering. 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

24、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 deg

25、radation 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

26、 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 plastic

27、s 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 ar

28、ticles 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

29、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 an

30、d 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 fo

31、r 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

32、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; howe

33、ver, a direct correlation between the experimental results and the behaviour in service is not to be inferred. 4DIN EN ISO 4611:2011-04 EN ISO 4611:2010 (E) 1 Scope 1.1 This International Standard specifies the conditions of exposure of plastics to g127 damp heat, g127 water spray, g127 salt mist, a

34、nd 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 c

35、onsiders separately methods for the determination of g127 change in mass, g127 change in dimensions and appearance, g127 change in physical properties. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edi

36、tion 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

37、 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 humid

38、ity as that of the initial specimens. 5DIN EN ISO 4611:2011-04 EN 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 f

39、rom 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 humidit

40、y 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 hu

41、midity shall have a resistivity of at least 0,05 Mg58 cm. For the water spray (see 4.2.2) and salt mist (see 4.2.3) tests, the following additional equipment requirements shall be met. The cabinet shall have a volume of not less than 0,4 m3since, with smaller volumes, difficulties have been experien

42、ced 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 can

43、not 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 pro

44、duced 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

45、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

46、. 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.

47、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

48、 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 g1142

49、C of the desired equilibrium temperature. The temperature tolerance limits of g1142 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