1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1096-3:2012Glass in building CoatedglassPart 3: Requirements and test methods forclass C and D coatingsBS EN 1096-3:2012 BRITISH STANDARDNational forewordThis British Stand
2、ard is the UK implementation of EN 1096-3:2012. Itsupersedes BS EN 1096-3:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/520/1, Basic and transformed glass products.A list of organizations represented on this committee can beobtained on request
3、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 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 75086 1ICS 81.040.20Compliance with a British Standa
4、rd cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2012.Amendments issued since publicationDate Text affectedBS EN 1096-3:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1096-3 Janu
5、ary 2012 ICS 81.040.20 Supersedes EN 1096-3:2001English Version Glass in building - Coated glass - Part 3: Requirements and test methods for class C and D coatings Verre dans la construction - Verre couche - Partie 3: Exigences et mthodes dessai pour les couches C et D Glas im Bauwesen - Beschichtet
6、es Glas - Teil 3: Anforderungen an und Prfverfahren fr Beschichtungen der Klassen C und D This European Standard was approved by CEN on 3 December 2011. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the stat
7、us 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ge
8、rman). A version in 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, Croat
9、ia, 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 , Turkey and United Kingdom. EUROPEAN COMMITTEE FOR S
10、TANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1096-3:2012: EBS EN 1096-3:2012EN 1096-3:2012 (E
11、) 2 Contents Page Foreword 3g31 Scope 4g32 Normative references 4g33 Terms and definitions .4g34 Requirements .4g35 Samples, test pieces and test specimens .5g35.1 Test pieces .5g35.1.1 Coated annealed glass 5g35.1.2 Toughened or heat strengthened coated glass 5g35.1.3 Coated toughened or heat stren
12、gthened glass 5g35.2 Preparation of test specimens .5g36 Initial evaluation of the test pieces 5g37 Test methods for exposure to simulated solar radiation 6g37.1 Radiation source 6g37.2 Test conditions 6g37.3 Reference glass piece .7g37.4 Test procedure .7g38 Final evaluation of exposed test pieces
13、7g38.1 Visual inspection .7g38.2 Spectrophotometric measurements 7g38.2.1 General 7g38.2.2 Coated annealed glass 8g38.2.3 Toughened or heat strengthened coated glass 8g39 Test report 8g3Annex A (normative) Special procedures for thermally treated coated glass 9g3A.1 General 9g3A.2 Spectrophotometric
14、 measurements .9g3A.2.1 Samples and test pieces for spectrophotometric measurements 9g3A.2.2 Procedures .9g3Annex B (normative) Criteria to demonstrate equivalence of coatings . 11g3B.1 General . 11g3B.2 Composition of coatings 11g3B.3 Previous test reports 11g3B.4 Evaluation 11g3B.5 Examples . 11g3
15、Annex C (normative) Example of two test apparatus which satisfy the exposure conditions given in 7.1 . 13g3C.1 Plane arrangement of the test pieces . 13g3C.2 Circular arrangement of the test pieces . 15g3Annex D (informative) Summary of test report . 16g3Bibliography . 18g3BS EN 1096-3:2012EN 1096-3
16、:2012 (E) 3 Foreword This document (EN 1096-3:2012) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, 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,
17、 at the latest by July 2012, and conflicting national standards shall be withdrawn at the latest by July 2012. 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
18、 all such patent rights. This document supersedes EN 1096-3:2001. The main changes compared to the previous edition are: reference to the future EN 1096-5, Test method and classification for the Self-cleaning performances of coated glass surfaces; the introduction of a method to deal with toughenabl
19、e / heat strengthenable and to be toughened / to be heat strengthened coated glass, see Annex A. According 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, Cypr
20、us, 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, Turkey and the United Kingdom. BS EN 1096-3:2012EN 1096-3:20
21、12 (E) 4 1 Scope This European Standard specifies requirements and a test method related to resistance to solar radiation for coated glass for use in buildings. This test is aimed at evaluating if the exposure to solar radiation over an extended period of time produces any appreciable change in ligh
22、t transmittance and solar transmittance of the coated glass as well as a reduction of the infrared reflectance in the case of low emissivity coatings. This European Standard applies to Class C and D coatings as defined in EN 1096-1 and used in insulating glass units. 2 Normative references The follo
23、wing 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. EN 410, Glass in Building Determination of luminous and so
24、lar characteristics of glazing EN 572-1, Glass in Building Basic soda lime silicate glass products Part 1: Definitions and general physical and mechanical properties EN 572-2, Glass in Building Basic soda lime silicate glass products Part 2: Float glass EN 1096-1:2012, Glass in Building Coated glass
25、 Part 1: Definitions and classification EN 1279 (all parts), Glass in Building Insulating glass units EN 1279-2:2002, Glass in building Insulating glass units Part 2: Long term test method and requirements for moisture penetration EN 12150-1, Glass in Building Thermally toughened soda lime silicate
26、safety glass Part 1: Definitions and description EN 12898, Glass in building Determination of emissivity 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1096-1 apply. 4 Requirements The coated glass complying with this European Standard shall meet the
27、 requirements given in Table 1 as they relate to the characteristic resistance to solar radiation. BS EN 1096-3:2012EN 1096-3:2012 (E) 5 Table 1 Requirements Test piece Visual inspection Spectrophotometric measurements Exposed test specimens No additional defects on the coating are seen as compared
28、to the unexposed double glass test specimens No requirements Exposed single coated glass test piece No requirements The transmittance values at 550 nm and 900 nm shall differ from the corresponding values of the unexposed single coated glass sample by no more than +/- 0,03 For a glass claimed to hav
29、e a low emissivity coating, the reflectance at 8 m shall decrease by no more than 0,02. 5 Samples, test pieces and test specimens 5.1 Test pieces 5.1.1 Coated annealed glass A sample of 1000 mm x 500 mm is needed. Two square test pieces of minimum size 250 mm x 250 mm shall be cut from the sample. 5
30、.1.2 Toughened or heat strengthened coated glass For the thermally treated coated glass, defined in EN 1096-1:2012, 3.1.8 to 3.1.11, as the test pieces cannot be cut from test samples, a special procedure has to be employed to obtain the test pieces (see annex A). 5.1.3 Coated toughened or heat stre
31、ngthened glass Use coated annealed glass samples for testing this type of coated glass. 5.2 Preparation of test specimens Two insulating glass units shall be manufactured as test specimens. The insulating glass units shall consist of one of the test pieces, 12 mm airspace and a piece of 4 mm clear f
32、loat glass (in compliance with EN 572-1 and EN 572-2). The dew point of the test specimens shall not be higher than - 25C, when measured at (23 5) C, according to EN 1279-2:2002, Annex A, or equivalent. The dew point is ensured when the insulating glass unit is manufactured in accordance with the EN
33、 1279 series. The edge area of the test specimens shall be covered with a reflecting aluminium foil (40 5) mm wide as a means of protection for the sealant components. 6 Initial evaluation of the test pieces The external surfaces of the test pieces shall be cleaned with a soft tissue using demineral
34、ised water, having a conductivity lower than 30 S. Drying shall also be done with a soft tissue. If necessary this cleaning procedure can be repeated. BS EN 1096-3:2012EN 1096-3:2012 (E) 6 The test pieces shall be subjected to a visual inspection under an artificial sky according to EN 1096-1 at a d
35、istance of 600 mm. The examination shall be in both transmission and reflection. The test pieces shall be defect free, i.e. no visible scratches or pinholes shall be allowed. 7 Test methods for exposure to simulated solar radiation NOTE Annex B gives criteria to demonstrate equivalence of coatings,
36、i.e. an indication of whether or not the coated glass needs to be tested. 7.1 Radiation source Radiation sources shall be used which emit radiation with a spectral distribution similar to the spectral solar global distribution as given in EN 410 and with percentages of UVB and UVA as given in Table
37、2. Such a spectral distribution can be obtained using different kinds of lamps (examples of test apparatus are given in Annex C). Table 2 Spectral characteristics of the lamps used for the test Radiation Range of wavelength (nm) Percentage of total energy (%) ultraviolet range UVB 280 to 315 1 to 4
38、ultraviolet range UVA 315 to 380 3 to 9 visible and infrared range 380 balance 7.2 Test conditions The total irradiance level measured on the surface of the test pieces (surface facing the test lamps) shall be (900 100) W/m. NOTE Calibrated pyranometers with characteristics as reported in ISO 9060 a
39、nd with a spectral sensitivity in the 305 mm to 2800 mm range should be used for the determination of the total irradiance level. Using these detectors, the measured irradiance level on the surface of the test pieces should be (730 80) W/m. The exposure time for the radiation test shall be: (1000 24
40、) h in the case of test apparatus given in C.1; (2000 24) h in the case of test apparatus given in C.2. The test specimen shall be placed with the coating orientated towards the radiation source. When tested, the coating shall be on surface 3. However, when the coating is only to be used on surface
41、2, then it shall be tested on surface 2. Figures C.1 a) (planar array) or C.1 b) (circular array) show the arrangement of the test specimens and the reference glass piece. The reference glass piece has a thermocouple placed on its surface facing the test lamps. The temperature of the reference glass
42、 piece shall be (56 3) C. BS EN 1096-3:2012EN 1096-3:2012 (E) 7 7.3 Reference glass piece An enamelled thermally toughened soda lime silicate safety glass, according to EN 12150-1, shall be used as a reference glass piece. It will be manufactured from of a piece of float glass, up to 10 mm thickness
43、, according to EN 572-1 and EN 572-2 with an enamelled black frit on the surface facing the array of lamps. The reference glass piece shall have the following properties: dimensions not less than 250 mm; solar direct absorption e 0,92 determined according to EN 410 with radiation of normal incidence
44、 onto the surface of the reference glass piece facing the test lamps; normal emissivity g304n 0,84 at (23 5) C of both outer surfaces of the reference glass piece, measured according to EN 12898 with radiation of nearly normal incidence; thermal conductance between the two outer surfaces g513 100 W/
45、(m2K). 7.4 Test procedure The test procedure shall include the following steps: initial visual inspection of the two test pieces according to Clause 6; checking for the appearance of humidity between the panes; exposure of one test piece under simulated solar radiation, and storage of the second tes
46、t piece in a dark room at a temperature of (23 5) C; final visual inspection of the exposed and unexposed test pieces according to 8.1; checking for the appearance of humidity between the panes; opening of both test pieces and preparation of a test portion according to 8.2; spectrophotometric measur
47、ements. 8 Final evaluation of exposed test pieces 8.1 Visual inspection The exposed test specimens shall be subjected to the same cleaning and the visual inspection procedure as for the initial test pieces see Clause 6. The requirements are given in Table 1. 8.2 Spectrophotometric measurements 8.2.1
48、 General This is undertaken on the coated test piece obtained by opening the test specimen. BS EN 1096-3:2012EN 1096-3:2012 (E) 8 8.2.2 Coated annealed glass A measurement sample shall be cut from the centre of the coated glass obtained from both the exposed and unexposed test specimens. The measure
49、ment sample shall be obtained without touching the coating. The actual size of the measurement sample shall be dependent on the type of equipment being used for the measurement. The spectrophotometric measurements on the single coated glass measurement sample shall be performed immediately after opening the test specimen. The transmittance of the measurement sample shall be determined with radiation at normal incidence of the following wavelengths: 550 nm (representative wavelength
