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    BS ISO 13837-2008 Road vehicles Safety glazing materials Method for the determination of solar transmittance《道路车辆 安全玻璃窗材料 阳光透射率的测定方法》.pdf

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    BS ISO 13837-2008 Road vehicles Safety glazing materials Method for the determination of solar transmittance《道路车辆 安全玻璃窗材料 阳光透射率的测定方法》.pdf

    1、BRITISH STANDARDBS ISO 13837:2008Road vehicles Safety glazing materials Method for the determination of solar transmittanceICS 43.040.60; 81.040.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g

    2、3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Incorporating corrigendumOctober 2009National forewordThis British Standard is the UK implementation of ISO 13837:2008. The UK participation in its preparation was entrusted to Technical Committee AUE/10, Safety glass for land transport. A list of organ

    3、izations 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 responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligat

    4、ions. BS ISO 13837:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2009Amendments/corrigenda issued since publicationDate Comments 31 October 2009 Incorporated ISO corrected version 2009-06-07, which corrects equation B.4I

    5、SBN 978 0 580 68602 3Reference numberISO 13837:2008(E)ISO 2009INTERNATIONAL STANDARD ISO13837First edition2008-04-15Corrected version2009-06-01Road vehicles Safety glazing materials Method for the determination of solar transmittance Vhicules routiers Vitrages de scurit Mthode de dtermination du fac

    6、teur de transmission du rayonnement solaire ISO 13837:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on t

    7、he computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used

    8、to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inf

    9、orm the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, withou

    10、t permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 x CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2009 All rig

    11、hts reservedBS ISO 13837:2008ISO 13837:2008(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms, definitions and symbols 1 3.1 Terms and definitions. 1 3.2 Symbols . 2 4 Computational conventions 2 4.1 Convention “A” . 2 4.2 Conv

    12、ention “B”. 2 5 Apparatus 2 6 Procedure 2 6.1 Sample preparation 2 6.2 Measurement. 3 6.3 Calculation by computational convention “A” 3 6.4 Calculation by computational convention “B” 3 6.5 Total solar transmittance . 4 7 Expression of results . 4 Annex A (informative) Derivation of solar weight tab

    13、les in this International Standard 9 Annex B (informative) Determination of total solar transmittance . 14 Bibliography . 16 BS ISO 13837:2008ISO 13837:2008(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national stand

    14、ards 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 orga

    15、nizations, 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

    16、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

    17、% 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 13837 was prepared by Technical Committee ISO/TC 22, Road

    18、vehicles, Subcommittee SC 11, Safety glazing materials. This corrected version of ISO 13837:2008 incorporates the following correction: Equation (B.4) on page 15 has been corrected. BS ISO 13837:2008ISO 13837:2008(E) ISO 2009 All rights reserved vIntroduction A review of existing standards and indus

    19、try specifications and procedures reveals a lack of agreement with respect to the basis for defining and measuring the ultraviolet (UV), visible (VIS) and infrared (IR) transmittance properties of glazing materials. To avoid the continued preparation and promulgation of conflicting standards by indi

    20、vidual entities, there is an interest in the automotive and glazing industries to harmonize on a worldwide basis the test procedures and protocol used to assess the solar transmittance properties of glazing materials. BS ISO 13837:2008INTERNATIONAL STANDARD ISO 13837:2008(E) ISO 2009 All rights rese

    21、rved 1Road vehicles Safety glazing materials Method for the determination of solar transmittance 1 Scope This International Standard specifies test methods to determine the direct and total solar transmittance of safety glazing materials for road vehicles. Two computational conventions (denoted conv

    22、ention “A” and convention “B”) are included, both of which are consistent with current international needs and practices. This International Standard applies to monolithic or laminated, clear or tinted samples of safety glazing materials. Essentially flat sections of glazing parts can be used in thi

    23、s test, as well as flat samples of the same materials. 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 (includ

    24、ing any amendments) applies. ISO 9845-1:1992, Solar energy Reference solar spectral irradiance at the ground at different receiving conditions Part 1: Direct normal and hemispherical solar irradiance for air mass 1,5 CIE 85:1989, Solar spectral irradiance 3 Terms, definitions and symbols 3.1 Terms a

    25、nd definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 standardize adjust an instrument output to correspond to a previously established calibration, using one or more homogeneous specimens or reference materials 3.1.2 transmittance ratio of transmitted fl

    26、ux to incident flux, under specified geometric and spectral conditions 3.1.3 air mass (ratio) ratio of the mass of atmosphere in the actual observer-sun path to the mass that would exist if the observer were at sea level, at standard barometric pressure, and the sun were directly overhead 3.1.4 sola

    27、r indirect transmittance fraction of the solar radiation absorbed by the safety glazing materials and reradiated to the interior NOTE The fraction is the secondary heat transfer factor as defined in ISO 9050. BS ISO 13837:2008ISO 13837:2008(E) 2 ISO 2009 All rights reserved3.2 Symbols Symbol Definit

    28、ion TUVultraviolet (UV) direct solar energy transmitted through a glazing TDSdirect solar (DS) energy transmitted through a glazing qisecondary heat transfer to the inside of a glazing TTStotal solar energy (TDS qi) transmitted to the inside of a glazing O wavelength, in nm O uniform O interval EOso

    29、lar energy within a O EOcEOin trapezoidal form 12 1/2, , /2nnEEEE (n)EOc normalized 300 2 500EEEOcccNOTE Additional definitions are specific to the computational convention chosen and are defined with the appropriate convention. 4 Computational conventions 4.1 Convention “A” Convention “A” defines t

    30、he UV range from 300 nm to 400 nm for air mass 1,5 global. This definition is consistent with ISO 3917 and CIE 20:1972, and the best average solar flux specified in ISO 9845-1:1992, Table 1, Column 5. 4.2 Convention “B” Convention “B” defines the UV range from 300 nm to 380 nm for air mass 1,0 globa

    31、l. This definition is consistent with ISO 9050 and EN 410, and the maximum possible solar flux found in CIE 85:1989, Table 4. NOTE This International Standard defines each convention and computations are based on established methods (see Annex A). The tables incorporated in each computational conven

    32、tion simplify the calculations, leading to high accuracy with minimum effort. Since the results will differ depending on which convention is chosen, it is essential that the convention chosen be clearly identified when results are reported. 5 Apparatus This method requires spectral transmittance dat

    33、a to be obtained from samples of glazing materials using a scanning spectrophotometer. This instrument, preferably equipped with an integrating sphere, shall be capable of measuring transmittance over that part of the electromagnetic spectrum in which the suns energy is transmitted to the earths sur

    34、face. 6 Procedure 6.1 Sample preparation Cut out (if necessary) and clean the flattest area of curved test specimens with distilled water and reagent grade methanol, or use an alternate procedure appropriate to the material, if necessary. Cut and clean flat samples similarly. BS ISO 13837:2008ISO 13

    35、837:2008(E) ISO 2009 All rights reserved 36.2 Measurement Standardize the spectrophotometer in accordance with the manufacturers instructions. Place a clean sample normal to the measuring beam in the transmittance sample position. Note its film side and curvature orientation, if applicable. Record t

    36、he sample spectral data in accordance with the instrument manufacturers recommendation. 6.3 Calculation by computational convention “A” 6.3.1 Definitions specific to computational convention “A” 6.3.1.1 Solar UV transmittance TUV(400) See Table 1. The transmittance is weighted interval by interval a

    37、nd derived from ISO 9845-1:1992, Table 1, Column 5 (with air mass 1,5 global) from 300 nm to 400 nm, at intervals of 5 nm. 6.3.1.2 Solar direct transmittance TDS(1,5) See Table 2. The transmittance is weighted interval by interval and derived from ISO 9845-1:1992, Table 1, Column 5 (with air mass 1,

    38、5 global) from 300 nm to 2 500 nm, at intervals of 5 nm, 10 nm and 50 nm. 6.3.1.3 Solar total transmittance TTS(1,5) The transmittance is the sum of the direct transmittance as defined in 6.3.1.2 and the indirect transmittance as defined in 3.1.4. 6.3.2 Computation method 6.3.2.1 Compute direct sola

    39、r transmittance by integration using the solar weight data in Tables 1 and 2. Transmission (T) for each solar range (O1to On) is determined by the following functions: 400UV300% (400) % (n) Table 1TTEOO uc(1) 2500DS300% (1,5) % (n) Table 2TTEOO uc(2where (n)EOcis the normalized solar energy computed

    40、 trapezoidally in wavelength interval (O). 6.3.2.2 Transmittance shall be measured to at least 2 300 nm. If it is not possible to measure transmittance to the recommended 2 500 nm, the last value shall be multiplied by the remaining (n)EOc weight values in Table 2. 6.4 Calculation by computational c

    41、onvention “B” 6.4.1 Definitions specific to computational convention “B” 6.4.1.1 Solar UV transmittance TUV(380) See Table 3. The transmittance is weighted interval by interval and derived from CIE 85:1989, Table 4 (with air mass 1,0 global) from 300 nm to 380 nm, at intervals of 5 nm. 6.4.1.2 Solar

    42、 direct transmittance TDS(1,0) See Table 4. The transmittance is weighted interval by interval and derived from CIE 85:1989, Table 4 (with air mass 1,0 global) from 300 nm to 2 500 nm, at intervals of 5 nm, 10 nm and 50 nm. BS ISO 13837:2008ISO 13837:2008(E) 4 ISO 2009 All rights reserved6.4.1.3 Sol

    43、ar total transmittance TTS(1,0) The transmittance is the sum of the direct transmittance as defined in 6.4.1.2 and the indirect transmittance as defined in 3.1.4. 6.4.2 Computation method 6.4.2.1 Compute direct solar transmittance by integration using the solar weight data in Tables 3 and 4. Transmi

    44、ssion (T) for each solar range (O1to On) is determined by the following functions: 380UV300% (380) % (n) Table 3TTEOO uc(3) 2500DS300% (1,0) % (n) Table 4TTEOO uc(4where (n)EOcis the normalized solar energy computed trapezoidally in wavelength interval (O). 6.4.2.2 Transmittance shall be measured to

    45、 at least 2 300 nm. If it is not possible to measure transmittance to the recommended 2 500 nm, the last value shall be multiplied by the remaining (n)EOc weight values in Table 4. 6.5 Total solar transmittance This International Standard defines the determination of the direct solar transmittance o

    46、f safety glazing materials computed by either of two computational conventions (“A” or “B”). If it is necessary to compute total solar transmittance, use the equations in Annex B and the direct solar transmittance results from 6.3 or 6.4, whichever is appropriate. 7 Expression of results Record thic

    47、kness, type, construction, and curvature orientation if applicable, of the specimen; the instrument and computational convention used (“A” or “B”); and the specimens total UV and direct solar transmittance, and, if necessary, the specimens total solar properties rounded to 0,1 %, in accordance with

    48、the rounding convention in Reference 6. BS ISO 13837:2008ISO 13837:2008(E) ISO 2009 All rights reserved 5Table 1 Solar global radiation through air mass 1,5 and partitioned into uniform spectral trapezoidal intervals O nm (n)EOc 300 0,000 000 305 0,001 045 310 0,004 634 315 0,011 800 320 0,019 807 3

    49、25 0,027 019 330 0,043 271 335 0,042 703 340 0,047 644 345 0,048 041 350 0,052 948 355 0,054 947 360 0,056 946 365 0,064 930 370 0,072 925 375 0,075 901 380 0,077 991 385 0,075 890 390 0,073 777 395 0,092 335 400 0,055 446 400UV300%(40) % (n)TTEOO ucNOTE Modified wavelength intervals in ISO 9845-1:1992, Table 1, Column 5. BS ISO 13837:2008ISO 13837:2008(E) 6 ISO 2009


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