1、October 2016 English price group 12No 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!%+D“2580833www.din.deD
2、IN EN ISO 4892-3Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps (ISO 48923:2016);English version EN ISO 48923:2016,English translation of DIN EN ISO 4892-3:2016-10Kunststoffe Knstliches Bestrahlen oder Bewittern in Gerten Teil 3: UVLeuchtstofflampen (ISO 48923:2
3、016);Englische Fassung EN ISO 48923:2016,Englische bersetzung von DIN EN ISO 4892-3:2016-10Plastiques Mthodes dexposition des sources lumineuses de laboratoire Partie 3: Lampes fluorescentes UV (ISO 48923:2016);Version anglaise EN ISO 4892-3:2016,Traduction anglaise de DIN EN ISO 4892-3:2016-10Super
4、sedesDIN EN ISO 48923:201402www.beuth.deDocument comprises 22 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.10.16 DIN EN ISO 4892-3:2016-10 2 A comma is used as the decimal marker. National foreword This document (EN ISO 4892
5、-3:2016) has been prepared by Technical Committee ISO/TC 61 “Plastics”, Subcommittee SC 6 “Ageing, chemical and environmental resistance in collaboration with Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was DIN-Normen
6、ausschuss Kunststoffe (DIN Standards Committee Plastics), Working Committee NA 054-01-04 AA Verhalten gegen Umgebungseinflsse. DIN EN ISO 4892 consists of the following parts, under the general title Plastics Methods of exposure to laboratory light sources: null Part 1: General guidance null Part 2:
7、 Xenon-arc lamps null Part 3: Fluorescent UV lamps The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4892-1 DIN EN ISO 4892-1 ISO 11341 DIN EN ISO 11341 ISO 11507 DIN EN ISO 16474-1 Amendments This standard differs from DIN EN ISO 4892-3:
8、2014-02 as follows: a) normative references have been updated; b) the standard has been editorially revised; c) additional information regarding lamp combination has been included in Annex A.2.3. Previous editions DIN 53384: 1989-04 DIN EN ISO 4892-3: 2000-10, 2006-05, 2014-02 National Annex NA (inf
9、ormative) Bibliography DIN EN ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance DIN EN ISO 11341, Paints and varnishes Artificial weathering and exposure to artificial radiation Exposure to filtered xenon-arc radiation DIN EN ISO 16474-1, Paints and varnis
10、hes Methods of exposure to laboratory light sources Part 1: General guidance EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4892-3 March 2016 ICS 83.080.01 Supersedes EN ISO 4892-3:2013English Version Plastics - Methods of exposure to laboratory light sources -Part 3: Fluorescent UV lamps
11、(ISO 4892-3:2016) Plastiques - Mthodes dexposition des sources lumineuses de laboratoire - Partie 3: Lampes fluorescentes UV (ISO 4892-3:2016) Kunststoffe - Knstliches Bestrahlen oder Bewittern in Gerten - Teil 3: UV-Leuchtstofflampen(ISO 4892-3:2016) This European Standard was approved by CEN on 23
12、 January 2016. 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 b
13、e 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
14、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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, I
15、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management
16、Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4892-3:2016 EForeword . 41 Scope . 52 Normative references 53 Principle 54 Apparatus . 64.1 Laboratory light source . 64.2 Test cham
17、ber 94.3 Radiometer . 94.4 Black-panel/black-standard thermometer . 94.5 Wetting 104.5.1 General.104.5.2 Spray and condensation system 104.6 Specimen holders 104.7 Apparatus to assess changes in properties .105 Test specimens.106 Test conditions 116.1 Radiation .116.2 Temperature .116.3 Condensation
18、 and spray cycles 116.4 Cycles with dark periods .116.5 Sets of exposure conditions 117 Procedure127.1 General 127.2 Mounting the test specimens .127.3 Exposure 127.4 Measurement of radiant exposure 137.5 Determination of changes in properties after exposure 138 Exposure report .13Annex A (informati
19、ve) Relative irradiance of typical fluorescent UV lamps 14Bibliography .20Contents PageEN ISO 4892-3:2016 (E) DIN EN ISO 4892-3:2016-10 2European foreword .3European foreword This document (EN ISO 4892-3:2016) has been prepared by Technical Committee ISO/TC 61 “Plastics” in collaboration with Techni
20、cal 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 September 2016, and conflicting national standards shall be withdrawn a
21、t the latest by September 2016. 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 4892-3:2013. According
22、 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, Former Yugoslav Republic of Macedonia, France, Germany, Gre
23、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4892-3:2016 has been approved by CEN as EN ISO 4892-3:2016 wi
24、thout any modification. EN ISO 4892-3:2016 (E) DIN EN ISO 4892-3:2016-10 3 ForewordISO (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 te
25、chnical 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 close
26、ly 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 ne
27、eded 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
28、 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
29、 this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barrier
30、s to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.This fourth edition cancels and replaces the third edition (ISO 4892-3:2013), of which it c
31、onstitutes a minor revision with the following change: in A.2.3, further information on lamp combination is added.ISO 4892 consists of the following parts, under the general title Plastics Methods of exposure to laboratory light sources: Part 1: General guidance Part 2: Xenon-arc lamps Part 3: Fluor
32、escent UV lamps Part 4: Open-flame carbon-arc lampsEN ISO 4892-3:2016 (E) DIN EN ISO 4892-3:2016-10 4 1 ScopeThis part of ISO 4892 specifies methods for exposing specimens to fluorescent UV radiation, heat and water in apparatus designed to simulate the weathering effects that occur when materials a
33、re exposed in actual end-use environments to global solar radiation, or to solar radiation through window glass.The specimens are exposed to fluorescent UV lamps under controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp can be used to meet
34、 all the requirements for testing different materials.Specimen preparation and evaluation of the results are covered in other International Standards for specific materials.General guidance is given in ISO 4892-1.NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are describ
35、ed in ISO 11507.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (incl
36、uding any amendments) applies.ISO 4582, Plastics Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sourcesISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance3 Princi
37、ple3.1 Fluorescent UV lamps, when following the manufacturers recommendations for lamp maintenance and/or rotation, may be used to simulate the spectral irradiance of global solar radiation in the short wavelength ultraviolet (UV) region of the spectrum.3.2 Specimens are exposed to various levels of
38、 UV radiation, heat and moisture (see 3.4) under controlled environmental conditions.3.3 The exposure conditions may be varied by selection of the following:a) type of fluorescent UV lamp;b) irradiance level;c) temperature during the UV exposure;d) type of wetting (see 3.4);EN ISO 4892-3:2016 (E) DI
39、N EN ISO 4892-3:2016-10 5 e) wetting temperature and cycle;f) timing of the UV/dark cycle.3.4 Wetting is usually produced by condensation of water vapour on to the exposed specimen surface or by spraying the test specimens with demineralized/deionized water.3.5 The procedure(s) may include measureme
40、nt of the irradiance and the radiant exposure in the plane of the specimen.3.6 It is recommended that a similar material of known performance (a control) be exposed simultaneously with the test specimens to provide a standard for comparative purposes.3.7 Intercomparison of results obtained from spec
41、imens exposed in different types of apparatus or to different types of lamp should not be made unless an appropriate statistical relationship has been established between the different types of equipment for the material to be tested.4 Apparatus4.1 Laboratory light source4.1.1 Fluorescent UV lamps a
42、re fluorescent lamps in which radiant emission in the ultraviolet region of the spectrum, i.e. below 400 nm, makes up at least 80 % of the total light output. There are three types of fluorescent UV lamp used in this part of ISO 4892. UVA-340 (type 1A) fluorescent UV lamp: these lamps have a radiant
43、 emission below 300 nm of less than 1 % of the total light output, have an emission peak at 343 nm, and are more commonly identified as UVA-340 for simulation of global solar radiation from 300 nm to 340 nm (see Table 1). Figure A.1 is a graph of spectral irradiance from 250 nm to 400 nm of a typica
44、l UVA-340 (type 1A) fluorescent lamp compared to global solar radiation. UVA-351 (type 1B) fluorescent UV lamp: these lamps have a radiant emission below 310 nm of less than 1 % of the total light output, have a peak emission at 353 nm, and are more commonly identified as UVA-351 for simulation of t
45、he UV portion of solar radiation behind window glass (see Table 2). Figure A.2 is a graph of spectral irradiance from 250 nm to 400 nm of a typical UVA-351 (type 1B) fluorescent UV lamp compared to global solar radiation filtered by window glass. UVB-313 (type 2) fluorescent UV lamp: these lamps are
46、 more commonly identified as UVB-313 and have a radiant emission below 300 nm that is more than 10 % of the total output and a peak emission at 313 nm (see Table 3). Figure A.3 is a graph of the spectral irradiance from 250 nm to 400 nm of two typical UVB-313 (type 2) fluorescent lamps compared to g
47、lobal solar radiation. UVB-313 (type 2) lamps may be used only by agreement between the parties concerned. Such agreement shall be stated in the test report. Four different UV lamps used as one combination: these four different UV lamps are used together as one combination with a suited filter. See
48、Figure A.4 in A.2.3.NOTE 1 UVB-313 (type 2) lamps have a spectral distribution of radiation, which peaks near the 313 nm mercury line and can emit radiation down to = 254 nm, which can initiate ageing processes that never occur in end-use environments.NOTE 2 The solar spectral irradiance for a number of different atmospheric conditions is described in CIE Publication No. 85. The benchmark global solar radiation used in this part of ISO 4892 is from CIE Publication No. 85:1989, Table 4.4.1.2 Unless oth
