1、May 2017 English price group 13No 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 83.080.01!%e)t“2660681www.din.deDIN
2、EN ISO 29664Plastics Artificial weathering including acidic deposition (ISO 29664:2010);English version EN ISO 29664:2017,English translation of DIN EN ISO 29664:2017-05Kunststoffe Knstliche Bewitterung einschlielich saurer Beanspruchung (ISO 29664:2010);Englische Fassung EN ISO 29664:2017,Englische
3、 bersetzung von DIN EN ISO 29664:2017-05Plastiques Vieillissement artificiel y compris les dpts acides (ISO 29664:2010);Version anglaise EN ISO 29664:2017,Traduction anglaise de DIN EN ISO 29664:2017-05www.beuth.deDocument comprises 23 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the Ge
4、rman-language original shall be considered authoritative.05.17 DIN EN ISO 29664:2017-05 2 A comma is used as the decimal marker. National foreword The text of ISO 29664:2010 has been prepared by Technical Committee ISO/TC 61 “Plastics” and has been taken over as EN ISO 29664:2017 by Technical Commit
5、tee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normenausschuss Kunststoffe (DIN Standards Committee Plastics), Working Committee NA 054-01-04 AA “Behaviour towards environmental effects”. The DIN Standards corresponding to the I
6、nternational Standards referred to in this document are as follows: ISO 291 DIN EN ISO 291 ISO 4892-1 DIN EN ISO 4892-1 ISO 4892-2 DIN EN ISO 4892-2 ISO 4892-3 DIN EN ISO 4892-3 National Annex NA (informative) Bibliography DIN EN ISO 291, Plastics Standard atmospheres for conditioning and testing DI
7、N EN ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance DIN EN ISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lamps DIN EN ISO 4892-3, Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV la
8、mps EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 29664 February 2017 ICS 83.080.01 English Version Plastics - Artificial weathering including acidic deposition (ISO 29664:2010) Plastiques - Vieillissement artificiel y compris les dpts acides (ISO 29664:2010) Kunststoffe - Knstliche Bewit
9、terung einschlielich saurer Beanspruchung (ISO 29664:2010) This European Standard was approved by CEN on 17 January 2017. 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 witho
10、ut 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 l
11、anguage 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, Den
12、mark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN
13、COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 29664:2017 EConte
14、nts Page Foreword .4 Introduction.5 1 Scope6 2 Normative references6 3 Principle6 4 Apparatus.7 5 Test specimens9 6 Test conditions 9 6.1 Method A 9 6.2 Method B 13 6.3 Allowed deviations in temperature and humidity 14 6.4 Measurement of radiant exposure.14 6.5 Determination of changes in properties
15、 after exposure .14 7 Precision.14 8 Test report14 Annex A (informative) Background information16 Annex B (informative) Precision data for coatings20 Bibliography21 EN ISO 29664:2017 (E) DIN EN ISO 29664:2017-05 2European foreword 3 European foreword The text of ISO 29664:2010 has been prepared by T
16、echnical Committee ISO/TC 61 “Plastics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 29664:2017 by 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 standa
17、rd, either by publication of an identical text or by endorsement, at the latest by August 2017, and conflicting national standards shall be withdrawn at the latest by August 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CE
18、N and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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,
19、 Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the U
20、nited Kingdom. Endorsement notice The text of ISO 29664:2010 has been approved by CEN as EN ISO 29664:2017 without any modification. EN ISO 29664:2017 (E) DIN EN ISO 29664:2017-05 3 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodi
21、es (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
22、, 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 IS
23、O/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
24、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 29664 was prepared by Technical Committee ISO/TC 61, Plastics, Subc
25、ommittee SC 6, Ageing, chemical and environmental resistance. EN ISO 29664:2017 (E) DIN EN ISO 29664:2017-05 4 Introduction This International Standard specifies methods to reproduce the weathering effects that occur when plastics are exposed to heavily polluted outdoor environments. Acidic precipit
26、ation can have a significant effect on the photochemical ageing of many polymers. In some cases, this is due to attack on the stabilizers56or fillers like CaCO378applied in technical polymers. The mechanisms differ from those of harmful gases, which essentially constitute the initial products of aci
27、dic precipitation. Arising from changing industrial air pollution and additionally diffused by the stochastic wind and cloud distribution, acidic precipitation occurs sporadically. Thus, especially regarding acidic precipitation, outdoor weathering effects vary enormously within different years. The
28、refore, it is practically impossible to obtain reliable outdoor exposure results from just one season. These fluctuations can be avoided through the use of a laboratory test, where all weathering parameters, including the acidic deposition, can be controlled. In artificial weathering tests for plast
29、ics, the action of acidic atmospheric precipitation, which is part of the real world, has generally not been considered. EN ISO 29664:2017 (E) DIN EN ISO 29664:2017-05 5 1 Scope This International Standard describes artificial weathering tests intended to evaluate plastics for use in heavily pollute
30、d outdoor environments. Results from this International Standard cannot be used to predict the service life of these plastics. This International Standard describes two different exposure methods. Use of the methods depends on the form of the plastic product being evaluated. Method A is intended for
31、 products where surface degradation is very important and uses a strong acid spray (pH 1,5) that is applied for a short time. Method B uses a weaker acid spray (pH 3,5) that is applied over a long period of time so that it can penetrate deeply into the product and is intended for products such as ge
32、otextiles and related products. This International Standard does not cover the influence of special chemicals like agrochemicals. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. Fo
33、r undated references, the latest edition of the referenced document (including any amendments) applies. ISO 291, Plastics Standard atmospheres for conditioning and testing ISO 4582, Plastics Determination of changes in colour and variations in properties after exposure to daylight under glass, natur
34、al weathering or laboratory light sources ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance ISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lamps ISO 4892-3, Plastics Methods of exposure to laboratory light sources Pa
35、rt 3: Fluorescent UV lamps 3 Principle The combined action of UV radiation, heat, humidity, wetting, and acidic deposition is evaluated in weathering devices conforming to ISO 4892-1, ISO 4892-2 and ISO 4892-3. The acidic deposition, in some cases, may accelerate the degradation of the polymer itsel
36、f. In other cases, the degradation is accelerated when the acid deposition attacks the stabilizers in the polymer. Two different methods combine acidic deposition with artificial weathering. In method A, a strong acid solution is applied once per day. In method B, a weaker acid exposure is integrate
37、d in the rain phase. Both test methods aim for the same physical-chemical degradation mechanism as known to occur from exposure in heavily polluted outdoor environment. To consider different climatic conditions, method A includes EN ISO 29664:2017 (E) DIN EN ISO 29664:2017-05 6 two procedures, one i
38、ntended to simulate very humid climates such as those in tropical or subtropical areas and one intended to simulate more moderate, less humid climates. As this mechanism does not depend on the size of the damage spots, either horizontal or vertical specimen orientation is allowed (see A.3). Use of r
39、eference materials is recommended in order to monitor the consistency and repeatability of the test. Suited sets of reference materials may be samples with different grades (good, moderate, low performance) based on previous tests using the same method. The reference material selected shall be stabl
40、e when stored in the dark at room temperature. 4 Apparatus 4.1 General apparatus, including two types of weathering devices conforming to ISO 4892-2 and ISO 4892-3. The test chambers, as well as all required mounting devices and holders, shall be made of acid- and UV-resistant materials. NOTE As bot
41、h types of weathering devices show a different spectral distribution, the results can differ. 4.2 Artificial acidic deposition, to produce an acid mixture of pH 1,5 at (25 2) C, add 10,6 g of H2SO4, 3,18 g of HNO3and 1,80 g of HCl to 10 litres of deionized or distilled water. This yields a mass rati
42、o of 1,0:0,3:0,17. The quantity of acid to be added assumes that the concentration is 100 %. Since the actual concentration of the reagent grade acids used is less than 100 %, the amount of each acid added should be adjusted for the actual percent acid in the reagent. For example, if the concentrati
43、on of the reagent HCl is 36 %, the actual amount of the reagent to be added is 1,8 divided by 0,36 or 5,0 g. If required, a solution with a pH of 2,5 can be produced by diluting the pH 1,5 solution with demineralized water in a volume ratio of 1:10. The solution with a pH of 3,5 is prepared by dilut
44、ing the pH 1,5 solution with demineralized water in a volume ratio of 1:100. Check the pH of the acid solution before starting the test. If the pH is more than 0,3 units away from the desired pH, discard the solution and make a fresh batch. Store the acid solution in a sealed container to avoid chan
45、ges in pH during storage. 4.3 Laboratory radiation sources. 4.3.1 Fluorescent UV lamp apparatus, conforming to ISO 4892-3 with Type 1A lamps specified in ISO 4892-3, if used. 4.3.2 Xenon arc lamp apparatus, conforming to ISO 4892-2, equipped with daylight filters as specified in ISO 4892-2, if xenon
46、 arc apparatus is used. Irradiance uniformity shall be in accordance with the requirements specified in ISO 4892-1. 4.3.3 Irradiance, UV irradiance of either 0,76 Wm2nm1at 340 nm or 45 Wm2in the 290 nm to 400 nm bandpass for fluorescent UV lamp apparatus operating with Type 1A lamps. During equilibr
47、ium operation, the allowed deviation of the measured irradiance shall be 0,02 Wm2nm1when controlling at 340 nm and 1,2 Wm2when controlled in the 290 nm to 400 nm bandpass. For xenon arc lamp apparatus, operating with daylight filters, the UV irradiance shall be either 0,51 Wm2nm1at 340 nm or 60 Wm2i
48、n the 300 nm to 400 nm bandpass. During equilibrium operation, the allowed deviation of the measured irradiance shall be 0,02 Wm2nm1when controlling at 340 nm and 1,2 Wm2when controlled in the 300 nm to 400 nm bandpass. If the indicated irradiance is outside the allowed deviations at equilibrium conditions, stop the test and determine the cause of the problem before continuing. EN ISO 29664:2017 (E) DIN EN ISO 2
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