ISO4892[1].3-2006紫外线测试

BRITISH STANDARD BS EN ISO 4892-3:2006 Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps The European Standard EN ISO 4892-3:2006 has the status of a British Standard ICS 83.080.01 ��������� � ���� ���������������������������������������������� ����� Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI BS EN ISO 4892-3:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2006 © BSI 2006 ISBN 0 580 48401 7 National foreword This British Standard is the official English language version of EN ISO 4892-3:2006. It is identical with ISO 4892-3:2006. It supersedes BS EN ISO 4892-3:2000 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. — aid enquirers to understand the text; — present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; — monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 14, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN ISO 4892-3 February 2006 ICS 83.080.01 Supersedes EN ISO 4892-3:1999 English Version Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2006) Plastiques - Méthodes d'exposition à des sources lumineuses de laboratoire - Partie 3: Lampes fluorescentes UV (ISO 4892-3:2006) Kunststoffe - Künstliches Bestrahlen oder Bewittern in Geräten - Teil 3: UV-Leuchtstofflampenstrahlung (ISO 4892-3:2006) This European Standard was approved by CEN on 6 February 2006. 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 be obtained on application to the Central Secretariat 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 the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION C O M I T É E U R O P É E N D E N O R M A LI S A T I O N EUR OP ÄIS C HES KOM ITEE FÜR NOR M UNG Management Centre: rue de Stassart, 36 B-1050 Brussels © 2006 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 4892-3:2006: E Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI Foreword This document (EN ISO 4892-3:2006) 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 IBN. 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 August 2006, and conflicting national standards shall be withdrawn at the latest by August 2006. This document supersedes EN ISO 4892-3:1999. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 4892-3:2006 has been approved by CEN as EN ISO 4892-3:2006 without any modifications. EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI Reference number ISO 4892-3:2006(E) INTERNATIONAL STANDARD ISO 4892-3 Second edition 2006-02-15 Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps Plastiques — Méthodes d'exposition à des sources lumineuses de laboratoire — Partie 3: Lampes fluorescentes UV EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI ii Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI iii Contents Page Foreword............................................................................................................................................................ iv 1 Scope ..................................................................................................................................................... 1 2 Normative references ........................................................................................................................... 1 3 Principle................................................................................................................................................. 1 4 Apparatus .............................................................................................................................................. 2 4.1 Laboratory light source........................................................................................................................ 2 4.2 Test chamber......................................................................................................................................... 5 4.3 Radiometer ............................................................................................................................................ 5 4.4 Black-standard/black-panel thermometer .......................................................................................... 5 4.5 Wetting and humidity ........................................................................................................................... 5 4.6 Specimen holders ................................................................................................................................. 6 4.7 Apparatus to assess changes in properties ...................................................................................... 6 5 Test specimens ..................................................................................................................................... 6 6 Test conditions ..................................................................................................................................... 6 6.1 Radiation................................................................................................................................................ 6 6.2 Temperature .......................................................................................................................................... 6 6.3 Relative humidity of chamber air ........................................................................................................ 7 6.4 Condensation and spray cycles.......................................................................................................... 7 6.5 Cycles with dark periods ..................................................................................................................... 7 6.6 Sets of exposure conditions................................................................................................................ 7 7 Procedure .............................................................................................................................................. 8 7.1 General................................................................................................................................................... 8 7.2 Mounting the test specimens .............................................................................................................. 8 7.3 Exposure................................................................................................................................................ 9 7.4 Measurement of radiant exposure ...................................................................................................... 9 7.5 Determination of changes in properties after exposure................................................................... 9 8 Exposure report .................................................................................................................................... 9 Annex A (informative) Spectral distribution of radiation for typical fluorescent UV lamps ..................... 10 Bibliography ..................................................................................................................................................... 14 EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI iv Foreword ISO (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 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 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 ISO/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 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 4892-3 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance. This second edition cancels and replaces the first edition (ISO 4892-3:1994), which has been technically revised. 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: Fluorescent UV lamps ⎯ Part 4: Open-flame carbon-arc lamps EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI 1 Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps 1 Scope This part of ISO 4892 specifies methods for exposing specimens to fluorescent UV radiation, heat and water in apparatus designed to reproduce the weathering effects that occur when materials are exposed in actual end-use environments to daylight, or to daylight 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 may be used to meet all the requirements for testing different materials. Specimen preparation and evaluation of the results are covered in other ISO documents for specific materials. General guidance is given in ISO 4892-1. NOTE Fluorescent UV lamp exposures for paints, varnishes and other coatings are described in ISO 11507[4]. 2 Normative references The following referenced documents are indispensable for the application of this document. 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 weathering or laboratory light sources ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance 3 Principle 3.1 Fluorescent UV lamps, when properly maintained, can be used to simulate the spectral irradiance of daylight in the 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) The type of fluorescent lamp. b) The irradiance level. c) The temperature during the light exposure. EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI 2 d) The relative humidity of the chamber air during the light and dark exposures, when test conditions requiring control of humidity are used. NOTE Commercial fluorescent UV devices usually do not provide means of relative humidity control. e) The type of wetting (see 3.4). f) The wetting temperature and cycle. g) The timing of the light/dark cycle. 3.4 Wetting is usually produced by condensation of water vapour onto the exposed specimen surface or by spraying the test specimens with demineralized/deionized water. 3.5 The procedure(s) may include measurement 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 specimens exposed in different 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 Apparatus 4.1 Laboratory light source 4.1.1 Fluorescent UV 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: ⎯ Type 1A (UVA-340) fluorescent UV lamp: These lamps have a radiant emission below 300 nm of less than 2 % of the total light output, have an emission peak at 343 nm, and are more commonly identified as UVA-340 for simulation of daylight from 300 nm to 340 nm (see Table 1, column A.1). Figure A.1 of Annex A is a graph of spectral irradiance from 250 nm to 400 nm of a typical type 1A (UVA-340) fluorescent lamp compared to daylight. If specified and agreed upon by all parties, a combination of fluorescent UVA lamps may also be used (see Table 1, column A.2). When combinations of lamps with different spectral emissions are used, provision shall be made to ensure the uniformity of the spectral irradiance at the surface of the specimens, e.g. by continuous repositioning of the specimens around the lamp array. ⎯ Type 1B (UVA-351) fluorescent UV lamp: These lamps have a radiant emission below 300 nm of less than 2 % of the total light output, have a peak emission at 353 nm, and are more commonly identified as UVA-351 for simulation of the UV portion of daylight behind window glass (see Table 2). Figure A.2 of Annex A is a graph of spectral irradiance from 250 nm to 400 nm of a typical type 1B (UVA-351) fluorescent UV lamp compared to daylight filtered by window glass. ⎯ Type 2 (UVB-313) fluorescent UV lamp: These lamps 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 of Annex A is a graph of the spectral irradiance from 250 nm to 400 nm of two typical type 2 (UVB-313) fluorescent lamps compared to daylight. Type 2 (UVB-313) lamps may be used only by agreement between the parties concerned. Such agreement shall be stated in the test report. NOTE 1 Type 2 (UVB-313) lamps have a spectral distribution of radiation which peaks near the 313 nm mercury line and may emit radiation down to λ = 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[1]. The benchmark daylight used in this part of ISO 4892 is from Table 4 in CIE Publication No. 85:1989. EN ISO 4892-3:2006 Li ce ns ed C op y: In st itu te O f T ec hn ol og y Ta lla gh t, In st itu te o f T ec hn ol og y, W ed A ug 0 9 10 :0 4: 15 B ST 2 00 6, U nc on tro lle d Co py , (c ) B SI 3 4.1.2 Unless otherwise specified, type 1A (UVA-340) fluorescent UV lamps or corresponding type 1A fluorescent UV lamp combinations shall be used to simulate the UV part of daylight (see Table 4, method A). Unless otherwise specified, type 1B (UVA-351)