1、BSI Standards PublicationBS EN ISO 16474-1:2013Paints and varnishes Methods of exposure tolaboratory light sourcesPart 1: General guidanceBS EN ISO 16474-1:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 16474-1:2013. Together with BS EN ISO 16474-2:201
2、3 it supersedes BS EN ISO 11341:2004, which is withdrawn. Together with BS EN ISO 16474-3:2013 it also supersedes BS EN ISO 11507:2007, which is withdrawn.This publication incorporates CEN correction notice 18 December 2013, which corrects the supersession information in the CEN foreword.The UK part
3、icipation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are respo
4、nsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 74874 5 ICS 87.040 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standar
5、ds Policy and Strategy Committee on 31 January 2014.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 16474-1 November 2013 ICS 87.040 English Version Paints and varnishes - Methods of exposure to laboratory light sources - Part
6、1: General guidance (ISO 16474-1:2013) Peintures et vernis - Mthodes dexposition des sources lumineuses de laboratoire - Partie 1: Lignes directrices gnrales (ISO 16474-1:2013) Beschichtungsstoffe - Knstliches Bestrahlen oder Bewittern in Gerten - Teil 1: Allgemeine Anleitung (ISO 16474-1:2013) This
7、 European Standard was approved by CEN on 26 October 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-date lists and bibliographical referen
8、ces 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 translation under the responsibility of a CEN m
9、ember 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, Former Yugoslav Republic of Macedonia,
10、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 COMIT EUROPEN DE NORMALISATION EUROPISCHE
11、S 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 16474-1:2013 EBS EN ISO 16474-1:2013EN ISO 16474-1:2013 (E) 3 Foreword This document (EN
12、 ISO 16474-1:2013) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publica
13、tion of an identical text or by endorsement, at the latest by May 2014, and conflicting national standards shall be withdrawn at the latest by May 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
14、be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11341:2004, EN ISO 11507:2007. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria,
15、 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, Romania, Slovakia, Slovenia, Spain, Sweden, S
16、witzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16474-1:2013 has been approved by CEN as EN ISO 16474-1:2013 without any modification. BS EN ISO 16474-1:2013ISO 16474-1:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative
17、references 13 Terms and definitions . 14 Principle 24.1 General . 24.2 Significance 24.3 Use of accelerated tests with laboratory light sources . 45 Requirements for laboratory exposure devices 45.1 Irradiance 45.2 Temperature 65.3 Humidity and wetting . 85.4 Other requirements for the exposure devi
18、ce 96 Test specimens null Preparation, replicates, storage and conditioning . 96.1 Handling of test specimens 96.2 Form, shape, preparation . 96.3 Number of test specimens 106.4 Storage and conditioning 107 Test conditions and procedure .117.1 Set points for exposure conditions . 117.2 Property meas
19、urements on test specimens . 118 Periods of exposure and evaluation of test results 128.1 General 128.2 Sampling 128.3 Determination of changes in properties after exposure 128.4 Use of control materials . 128.5 Use of results in specifications . 129 Test report 13Annex A (informative) Procedure for
20、 measuring the irradiance uniformity in the specimen exposure area .15Annex B (informative) Factors that decrease the degree of correlation between artificial accelerated weathering or artificial accelerated irradiation exposures and actual-use exposures .18Annex C (informative) Solar spectral irrad
21、iance standard 21Bibliography .22BS EN ISO 16474-1:2013ISO 16474-1:2013(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 tec
22、hnical 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 closel
23、y 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 nee
24、ded 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. www.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent rights
25、. 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. www.iso.org/patentsAny trade name used in this documen
26、t 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 Barriers to Trade (T
27、BT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This first edition of ISO 16474-1, together with ISO 16474-2, cancels and replaces ISO 11341
28、:2004, which has been technically revised. This first edition of ISO 16474-1, together with ISO 16474-3, cancels and replaces ISO 11507:2007, which has been technically revised. ISO 16474 consists of the following parts, under the general title Paints and varnishes Methods of exposure to laboratory
29、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 reservedBS EN ISO 16474-1:2013ISO 16474-1:2013(E)IntroductionCoatings from paints, varnishes and similar materials are often used outdoors or in indo
30、or locations where they are exposed to 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 polymers. Outdoor exposures to sola
31、r radiation and to solar radiation filtered by window glass are described in ISO 28109. However, it is often necessary to determine more rapidly the effects of light, heat and moisture on the physical, chemical and optical properties of coatings with artificial accelerated weathering or artificial a
32、ccelerated irradiation exposures 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 polymer degradation and product failures. Relating results from accelera
33、ted weathering or 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 often do not reproduce all the exposure stresses experienced by coatings exposed in actual-use conditio
34、ns. In addition, the increase in rate of degradation by the accelerated test compared with natural exposure conditions varies with the type of material and its formulation. No single laboratory exposure test can be specified as a total simulation of actual-use exposures. The relative durability of m
35、aterials in actual-use exposures can be very different depending on the location of the exposure because of differences in solar radiation, time of wetness, temperature, pollutants and other factors. Therefore, even if results from specific accelerated weathering or artificial accelerated irradiatio
36、n 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 that they will be useful for determining the relative durability of materials exposed in a different outdoor loc
37、ation or in different actual-use conditions. ISO 2013 All rights reserved vBS EN ISO 16474-1:2013BS EN ISO 16474-1:2013Paints and varnishes Methods of exposure to laboratory light sources Part 1: General guidance1 Scope1.1 This part of ISO 16474 provides information and general guidance relevant to
38、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 paints and varnishes to laboratory light sources. Information about such performance requirements is provided for producers
39、 of artificial accelerated weathering or artificial accelerated irradiation devices.1.2 This part of ISO 16474 also provides information on the interpretation of data from artificial accelerated weathering or artificial accelerated irradiation exposures.2 Normative referencesThe following documents,
40、 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 (including any amendments) applies.ISO 1513, Paints and varnishes E
41、xamination and preparation of test samplesISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 4618, Paints and varnis
42、hes Terms and definitionsISO 9370, Plastics Instrumental determination of radiant exposure in weathering tests General guidance and basic test methodISO 15528, Paints, varnishes and raw materials for paints and varnishes SamplingISO 16474-2, Paints and varnishes Methods of exposure to laboratory lig
43、ht sources Part 2: Xenon-arc lampsISO 16474-3, Paints and varnishes Methods of exposure to laboratory light sources Part 3: Fluorescent UV lampsISO 16474-4, Paints and varnishes Methods of exposure to laboratory light sources Part 4: Open-flame carbon-arc lamps3 Terms and definitionsFor the purposes
44、 of this document, the terms and definitions given in ISO 4618 and the following apply.INTERNATIONAL STANDARD ISO 16474-1:2013(E) ISO 2013 All rights reserved 1BS EN ISO 16474-1:2013ISO 16474-1:2013(E)3.1artificial accelerated irradiationexposure of a material to a laboratory radiation source intend
45、ed to simulate window-glass-filtered solar radiation or radiation from interior lighting sources and where specimens are 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
46、 environmentNote 1 to entry: These exposures are commonly referred to as fading or light fastness tests.3.2artificial accelerated weatheringexposure of a material in a laboratory weathering device to conditions which may be cyclic and intensified compared with those encountered in outdoor or in-serv
47、ice 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 occur in long-term outdoor exposure.Note 2 to entry: The device may
48、 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.3.3control materialmaterial which is of similar composition and construction to the test
49、 material and which is exposed 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 coating made with the original formulation.3.4file specimenportion 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 states3.5reference materialmaterial
