1、BS EN ISO 4892-1:2016Plastics Methods ofexposure to laboratory lightsourcesPart 1: General guidance (ISO 4892-1:2016)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 4892-1:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation
2、of EN ISO4892-1:2016. It supersedes BS EN ISO 4892-1:2001 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/21, Testing of plastics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does n
3、ot purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 76665 7ICS 83.080.01Compliance with a British Standard cannot confer immunity fromlegal obli
4、gations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4892-1 May 2016 ICS 83.080.01 Supersedes EN
5、ISO 4892-1:2000English Version Plastics - Methods of exposure to laboratory light sources -Part 1: General guidance (ISO 4892-1:2016) Plastiques - Mthodes dexposition des sources lumineuses de laboratoire - Partie 1: Lignes directrices gnrales (ISO 4892-1:2016) Kunststoffe - Knstliches Bestrahlen od
6、er Bewittern in Gerten - Teil 1: Allgemeine Anleitung (ISO 4892-1:2016) This European Standard was approved by CEN on 15 April 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 sta
7、ndard 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
8、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 Re
9、public, Denmark, Estonia, Finland, Former 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. EUROPE
10、AN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management 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 4892-1:2016 EB
11、S EN ISO 4892-1:2016EN ISO 4892-1:2016 (E) 3 European foreword This document (EN ISO 4892-1:2016) 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 giv
12、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2016, and conflicting national standards shall be withdrawn at the latest by November 2016. Attention is drawn to the possibility that some of the elements of this document m
13、ay 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 4892-1:2000. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are boun
14、d to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, 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
15、, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 4892-1:2016 has been approved by CEN as EN ISO 4892-1:2016 without any modification. BS EN ISO 4892-1:2016ISO 4892-1:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative ref
16、erences 13 Terms and definitions . 24 Principle 24.1 General . 24.2 Significance 34.3 Use of accelerated tests with laboratory light sources . 45 Requirements for laboratory exposure devices 55.1 Irradiance 55.2 Temperature 65.3 Humidity and wetting . 85.4 Other requirements for the exposure device
17、96 Test specimens.106.1 Form, shape and preparation 106.2 Number of test specimens 116.3 Storage and conditioning 117 Test conditions and procedure .117.1 Set points for exposure conditions . 117.2 Property measurements on test specimens . 128 Periods of exposure and evaluation of test results 138.1
18、 General 138.2 Use of control materials . 138.3 Use of results in specifications . 139 Test report 14Annex A (normative) Procedures for measuring the irradiance uniformity in the specimen exposure area .16Annex B (informative) Factors that decrease the degree of correlation between artificial accele
19、rated weathering or artificial accelerated irradiation exposures and actual-use exposures .19Annex C (informative) Solar spectral irradiance standards22Bibliography .24 ISO 2016 All rights reserved iiiContents PageBS EN ISO 4892-1:2016ISO 4892-1:2016(E)ForewordISO (the International Organization for
20、 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
21、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.The procedu
22、res 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 should be noted. This document was drafted in accordance with the editorial
23、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 rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights ide
24、ntified 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 this document is information given for the convenience of users and does not constitute an endorsement.For an explanation
25、 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 Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is
26、 ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.This third edition cancels and replaces the second edition (ISO 4892-1:1999), which has been technically revised.ISO 4892 consists of the following parts, under the general title Plastics Methods of exposure to la
27、boratory light sources: Part 1: General guidance Part 2: Xenon-arc lamps Part 3: Fluorescent UV lamps Part 4: Open-flame carbon-arc lampsiv ISO 2016 All rights reservedBS EN ISO 4892-1:2016ISO 4892-1:2016(E)IntroductionPlastics are often used outdoors or in indoor locations where they are exposed to
28、 solar radiation or to solar radiation behind glass for long periods. It is therefore very important to determine the effects of solar radiation, heat, moisture and other climatic stresses on the colour and other properties of plastics. Outdoor exposures to solar radiation and to solar radiation fil
29、tered by window glass are described in ISO 877 (all parts).1However, it is often necessary to determine more rapidly the effects of radiation, heat and moisture on the physical, chemical and optical properties of plastics with artificial accelerated weathering or artificial accelerated irradiation e
30、xposures that use specific laboratory light sources. Exposures in these laboratory devices are conducted under more controlled conditions than found in natural environments and are intended to accelerate eventual polymer degradation and product failures.Relating results from accelerated weathering o
31、r artificial accelerated irradiation exposures to those obtained in actual-use conditions is difficult because of variability in both types of exposure and because laboratory tests never reproduce exactly all the exposure stresses experienced by plastics exposed in actual-use conditions. No single l
32、aboratory exposure test can be specified as a total simulation of actual-use exposures.The relative durability of materials in actual-use exposures can be very different depending on the location of the exposure because of differences in UV radiation, time of wetness, temperature, pollutants and oth
33、er factors. Therefore, even if results from specific accelerated weathering or artificial accelerated irradiation exposures are found to be useful for comparing the relative durability of materials exposed in a particular outdoor location or in particular actual-use conditions, it cannot be assumed
34、that they will be useful for determining the relative durability of materials exposed in a different outdoor location or in different actual-use conditions. ISO 2016 All rights reserved vBS EN ISO 4892-1:2016BS EN ISO 4892-1:2016Plastics Methods of exposure to laboratory light sources Part 1: Genera
35、l guidance1 ScopeThis part of ISO 4892 provides information and general guidance relevant to the selection and operation of the methods of exposure described in detail in subsequent parts. It also describes general performance requirements for devices used for exposing plastics to laboratory light s
36、ources. Information regarding performance requirements is for producers of artificial accelerated weathering or artificial accelerated irradiation devices.NOTE In this part of ISO 4892, the term “light source” refers to radiation sources that emit UV radiation, visible radiation, infrared radiation
37、or any combination of these types of radiation.This part of ISO 4892 also provides information on the interpretation of data from artificial accelerated weathering or artificial accelerated irradiation exposures. More specific information about methods for determining the change in the properties of
38、 plastics after exposure and reporting these results is given in ISO 4582.2 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 refer
39、ences, the latest edition of the referenced document (including any amendments) applies.ISO 291, Plastics Standard atmospheres for conditioning and testingISO 293, Plastics Compression moulding of test specimens of thermoplastic materialsISO 294-1, Plastics Injection moulding of test specimens of th
40、ermoplastic materials Part 1: General principles, and moulding of multipurpose and bar test specimensISO 294-2, Plastics Injection moulding of test specimens of thermoplastic materials Part 2: Small tensile barsISO 294-3, Plastics Injection moulding of test specimens of thermoplastic materials Part
41、3: Small platesISO 295, Plastics Compression moulding of test specimens of thermosetting materialsISO 2818, Plastics Preparation of test specimens by machiningISO 3167, Plastics Multipurpose test specimensISO 4582, Plastics Determination of changes in colour and variations in properties after exposu
42、re to daylight under glass, natural weathering or laboratory light sourcesISO 4892-2, Plastics Methods of exposure to laboratory light sources Part 2: Xenon-arc lampsISO 4892-3, Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lampsISO 4892-4, Plastics Methods of expos
43、ure to laboratory light sources Part 4: Open-flame carbon-arc lampsINTERNATIONAL STANDARD ISO 4892-1:2016(E) ISO 2016 All rights reserved 1BS EN ISO 4892-1:2016ISO 4892-1:2016(E)ISO 9370, Plastics Instrumental determination of radiant exposure in weathering tests General guidance and basic test meth
44、od3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.NOTE Definitions of other terms that are related to weathering tests are found in Reference 2.3.1controlmaterial which is of similar composition and construction to the test material and which is ex
45、posed at the same time for comparison with the test materialNote 1 to entry: An example of the use of a control material would be when a formulation different from one currently being used is being evaluated. In that case, the control would be the plastic made with the original formulation.3.2file s
46、pecimenportion of the material to be tested which is stored under conditions in which it is stable and which is used for comparison between the exposed and unexposed states3.3artificial accelerated weatheringexposure of a material in a laboratory weathering device to conditions which may be cyclic a
47、nd intensified compared with those encountered in outdoor or in-service exposureNote 1 to entry: This involves a laboratory radiation source, heat and moisture (in the form of relative humidity and/or water spray, condensation or immersion) in an attempt to produce more rapidly the same changes that
48、 occur in outdoor exposure.Note 2 to entry: The device may include means for control and/or monitoring of the light source and other weathering parameters. It may also include exposure to special conditions, such as acid spray to simulate the effect of industrial gases.3.4artificial accelerated irra
49、diationexposure of a material to a laboratory radiation source intended to simulate window-glass-filtered solar radiation or radiation from interior lighting sources and where specimens may be subjected to relatively small changes in temperature and relative humidity in an attempt to produce more rapidly the same changes that occur when the material is used in an indoor environmentNote 1 to entry: These exposures are commonly referred to as fading or lightfastness tests.3.5reference materialmaterial of kn
