1、BSI Standards PublicationBS EN ISO 4892-3:2013Plastics Methods ofexposure to laboratory lightsourcesPart 3: Fluorescent UV lampsCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS
2、 EN ISO 4892-3:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO4892-3:2013. It supersedes BS EN ISO 4892-3:2006 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/21, Testing of plastics.A list of organizati
3、ons represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 97
4、8 0 580 69491 2ICS 83.080.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments issued since publicationDate Text affectedCopyright Europe
5、an Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4892-3 September 2013 ICS 83.080.01 Supersedes EN ISO 4892-3:2006English Version Plastics
6、 - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2013) Plastiques - Mthodes dexposition des sources lumineuses de laboratoire - Partie 3: Lampes fluorescentes UV (ISO 4892-3:2013) Kunststoffe - Knstliches Bestrahlen oder Bewittern in Gerten - Teil 3: UV-L
7、euchtstofflampen (ISO 4892-3:2013)This European Standard was approved by CEN on 24 August 2013. 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-d
8、ate 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 translatio
9、n 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, Fo
10、rmer Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMI
11、T EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4892-3:2013: ECopyright European Committee for Stan
12、dardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4892-3:2013EN ISO 4892-3:2013 (E) 3 Foreword This document (EN ISO 4892-3:2013) has been prepared by Technical Committee ISO/TC 61 “Plastics“ in collaboratio
13、n 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 March 2014, and conflicting national standards shall be wi
14、thdrawn at the latest by March 2014. 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 4892-3:2006. Acco
15、rding 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
16、, Greece, 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 4892-3:2013 has been approved by CEN as EN ISO 4892-3:20
17、13 without any modification. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4892-3:2013ISO 4892-3:2013(E) ISO 2013 All rights reserved iiiContents PageForeword iv1 Sco
18、pe . 12 Normative references 13 Principle 14 Apparatus . 24.1 Laboratory light source . 24.2 Test chamber 54.3 Radiometer . 54.4 Black-panel/black-standard thermometer . 54.5 Wetting . 64.6 Specimen holders . 64.7 Apparatus to assess changes in properties 65 Test specimens 66 Test conditions . 76.1
19、Radiation 76.2 Temperature 76.3 Condensation and spray cycles . 76.4 Cycles with dark periods 76.5 Sets of exposure conditions . 77 Procedure. 87.1 General . 87.2 Mounting the test specimens 87.3 Exposure . 97.4 Measurement of radiant exposure . 97.5 Determination of changes in properties after expo
20、sure . 98 Exposure report 9Annex A (informative) Relative irradiance of typical fluorescent UV lamps .10Bibliography .15Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO
21、4892-3:2013ISO 4892-3:2013(E)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 technical committees. Each member body intereste
22、d 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 Com
23、mission (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 needed for the different types of ISO documents
24、should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention 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 ident
25、ifying 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. www.iso.org/patentsAny trade name used in this document is information given for the convenience of
26、 users and does not constitute an endorsement.The committee responsible for this document is ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.This third edition cancels and replaces the second edition (ISO 4892-3:2006), which has been technically revised.The main
27、 technical changes are:a) Table 4 explains cycles, lamp types and irradiance with greater clarity;b) the term “daylight” has been replaced throughout by “global solar radiation”;c) in Table 4, combination lamp option has been transferred to Annex A.ISO 4892 consists of the following parts, under the
28、 general title Plastics Methods of exposure to laboratory light sources: Part 1: General guidance Part 2: Xenon-arc lamps Part 3: Fluorescent UV lamps Part 4: Open-flame carbon-arc lampsiv ISO 2013 All rights reservedCopyright European Committee for Standardization Provided by IHS under license with
29、 CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN ISO 4892-3:2013INTERNATIONAL STANDARD ISO 4892-3:2013(E)Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps1 ScopeThis part of ISO 4892 specifies methods for exposing specim
30、ens to fluorescent UV radiation, heat and water in apparatus designed to simulate the weathering effects that occur when materials are 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
31、controlled environmental conditions (temperature, humidity and/or water). Different types of fluorescent UV lamp can be used to meet all the requirements for testing different materials.Specimen preparation and evaluation of the results are covered in other International Standards for specific mater
32、ials.General guidance is given in ISO 4892-1.NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 11507.42 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicati
33、on. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4582, Plastics Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathe
34、ring or laboratory light sourcesISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance3 Principle3.1 Fluorescent UV lamps, when following the manufacturers recommendations for lamp maintenance and/or rotation, may be used to simulate the spectral irradiance of
35、global solar radiation in the short wavelength ultraviolet (UV) region of the spectrum.3.2 Specimens are exposed to various levels of UV radiation, heat and moisture (see 3.4) under controlled environmental conditions.3.3 The exposure conditions may be varied by selection of:a) type of fluorescent U
36、V lamp;b) irradiance level;c) temperature during the UV exposure;d) type of wetting (see 3.4);e) wetting temperature and cycle;f) timing of the UV/dark cycle. ISO 2013 All rights reserved 1Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reprodu
37、ction or networking permitted without license from IHS-,-,-BS EN ISO 4892-3:2013ISO 4892-3:2013(E)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 m
38、easurement 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 f
39、rom specimens 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
40、 lamps are 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
41、 radiant 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
42、a typical 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 simulat
43、ion of the 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 l
44、amps are 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 compa
45、red to global 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 filt
46、er. See 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
47、 a number of different atmospheric conditions is described in CIE Publication No. 85.1The benchmark global solar radiation used in this part of ISO 4892 is from Table 4 of CIE Publication No. 85:1989.4.1.2 Unless otherwise specified, UVA-340 (type 1A) fluorescent UV lamps shall be used to simulate t
48、he UV part of global solar radiation (see Table 4, method A). Unless otherwise specified, UVA-351 (type 1B) lamps shall be used to simulate the UV part of solar radiation through window glass (see Table 4, method B). The four lamp UV combination may be used (see A.2.3) and shall be stated in the tes
49、t report.4.1.3 Fluorescent lamps age significantly with extended use. If an automatic irradiance control system is not used, follow the apparatus manufacturers instructions on the procedure necessary to maintain the desired irradiance.2 ISO 2013 All rights reservedCopyright European Committee for Standardization Provided by IHS under l
