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1、 Reference number ISO 12567-2:2005(E) ISO 2005 INTERNATIONAL STANDARD ISO 12567-2 First edition 2005-10-15 Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 2: Roof windows and other projecting windows Isolation thermique des fentres et portes Dte
2、rmination de la transmission thermique par la mthode la bote chaude Partie 2: Fentres de toit et autres fentres en saillie Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:0
3、0 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(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
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6、elating to it is found, please inform the Central Secretariat at the address given below. ISO 2005 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, w
7、ithout 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 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 2005 All
8、rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(E) ISO 2005 Al
9、l rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Principle. 2 5 Requirements for test specimens and apparatus . 2 5.1 General. 2 5.2 Test specimen location 2 5.3 Calibration panels. 4 5.4 Baffle position. 5 6 Procedure
10、6 6.1 General. 6 6.2 Calibration measurements. 6 6.3 Specimen measurements 6 6.4 Expression of results . 6 7 Test report . 6 Annex A (normative) Environmental temperature 7 Annex B (normative) Linear thermal transmittance of the edge zone 11 Annex C (informative) Example of calibration test and meas
11、urement of a roof window specimen 16 Bibliography. 25 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS
12、 -,-,- ISO 12567-2:2005(E) iv ISO 2005 All rights reserved 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 committ
13、ees. 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 Int
14、ernational 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
15、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 s
16、ubject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 12567-2 was prepared by Technical Committee ISO/TC 163, Thermal performance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods. ISO 12567 consists of th
17、e following parts, under the general title Thermal performance of windows and doors Determination of thermal transmittance by hot box method: Part 1: Complete windows and doors Part 2: Roof windows and other projecting windows. Copyright International Organization for Standardization Provided by IHS
18、 under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(E) ISO 2005 All rights reserved v Introduction This part of ISO 12567 should be read together with ISO
19、 12567-1:2000 Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 1: Complete windows and doors. These two parts were jointly developed by ISO and CEN. They are designed to provide standardised thermal transmittance test values, to enable product co
20、mparisons to be made. ISO 12567-1:2000 specifies standardised specimen sizes and applied test criteria. It is recognised that the thermal performance of products will vary with heat flow direction and so it is preferable to test these products at the orientation in which they will be installed. Howe
21、ver, as there are only a few hot boxes capable of carrying out such measurements, this measurement procedure specifies that it is acceptable to measure the thermal transmittance of roof windows mounted vertically to facilitate the fair comparison of products. It should be noted that measurements wit
22、h the specimen mounted vertically will generally produce U-values lower than those measured at other orientations with heat flow up. An alternative to measuring at the actual orientation that will be used in practice is to carry out calculations of convective and radiant heat transfer using the proc
23、edures specified in ISO 15099, ISO 10077-1, ISO 10077-2 and EN 673. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without li
24、cense from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO
25、 12567-2:2005(E) ISO 2005 All rights reserved 1 Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 2: Roof windows and other projecting windows 1 Scope This part of ISO 12567 specifies a method to measure the thermal transmittance of roof windows a
26、nd projecting windows. It does not include: edge effects occurring outside the perimeter of the specimen; energy transfer due to solar radiation on the specimen; effects of air leakage through the specimen. 2 Normative references The following referenced documents are indispensable for the applicati
27、on 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 7345:1987, Thermal insulation Physical quantities and definitions ISO 8990:1994, Thermal insulation Determination o
28、f steady-state thermal transmission properties Calibrated and guarded hot box ISO 12567-1:2000, Thermal performance of windows and doors Determination of thermal transmittance by hot box method Part 1: Complete windows and doors 3 Terms and definitions For the purposes of this document, the terms an
29、d definitions given in ISO 7345 and ISO 12567-1 and the following apply. 3.1 projecting windows product, where any glazing layer projects beyond the outside surface of the building envelope Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA
30、Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(E) 2 ISO 2005 All rights reserved 3.2 roof windows any framed glazed product installed in a sloped or horizontal building envelope NOTE 1 Ro
31、of windows are treated as projecting windows. NOTE 2 See also Reference 1 in Bibliography. 4 Principle This part of ISO 12567 is based on a measurement procedure for roof windows and other projecting windows, in accordance with the procedure specified in ISO 12567-1:2000, except for the deviations s
32、pecified below: the window is installed in the surround panel flush to the cold side (insert- or kerb-mounted as shown in Figure 1), to reflect the installation in practice; the calibration procedure and the specimen tests shall be carried out at the same orientation; for practical reasons, vertical
33、 mounting of the specimen is acceptable for product declaration purpose. Although the evaluation of the thermal performance of these types of products will be made for a variety of reasons, it is important that when measurements are made for purposes of product comparison, they are carried out at th
34、e same orientation. NOTE For building load or energy calculations, the value may be corrected for the effect of the sloped glazing position using suitable national procedures. 5 Requirements for test specimens and apparatus 5.1 General The construction and operation of the apparatus shall comply wit
35、h the requirements specified in ISO 8990:1994 except where modified by ISO 12567-1:2000 and this document. 5.2 Test specimen location The test specimen shall be mounted in the surround panel aperture according to the manufacturers instructions. If the method of installation of the roof window in the
36、 hot box cannot be unambiguously determined from the manufacturers installation instructions, the window shall be installed as shown in Figure 1. Flashings and/or kerb (curb) shall be included as the windows are normally installed (see Figure 1). NOTE Kerb and curb are synonymous. Copyright Internat
37、ional Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(E) ISO 2005 All rights reserved 3 Dimensions in
38、millimetres Key 1 border of metering area 2 surround panel, u 0.04 W/(mK) 3 glazing 4 cold side 5 warm side 6 to be sealed with non-metallic tape or mastic material 7 flashing 8 kerb-mounted roof window 9 insert-mounted roof window Figure 1 Roof window in surround panel (top part: insert-mounted; bo
39、ttom part: kerb-mounted) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12567-2:2005(E) 4
40、ISO 2005 All rights reserved 5.3 Calibration panels The calibration panels or CTS (calibration transfer standard) shall be mounted in the surround panel aperture flush with the cold face as shown in Figure 2. Dimensions in millimetres Key 1 surround panel 2 boundary effects 3 cold side 4 warm side 5
41、 calibration panel Figure 2 Mounting of calibration panel in aperture Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permitted without
42、license from IHS -,-,- ISO 12567-2:2005(E) ISO 2005 All rights reserved 5 5.4 Baffle position The distance between the baffle on the cold side and the glazing of the test specimen shall not be less than 80 mm, see Figure 3. For air speeds greater than 2 m/s, the distance between baffle and specimen
43、shall be greater than 80 mm in order to ensure free stream conditions. Dimensions in millimetres a) Vertical section b) Face elevation Key 1 cold side baffle 2 warm side baffle 3 all surround panel thermocouples located centrally 4 air temperature sensors 5 recommended position of air speed sensor a
44、ligned in the centre Figure 3 Location of temperature sensors and air speed sensor Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/12/2007 22:30:00 MDTNo reproduction or networking permi
45、tted without license from IHS -,-,- ISO 12567-2:2005(E) 6 ISO 2005 All rights reserved 6 Procedure 6.1 General The measurement shall be carried out under the conditions specified in ISO 12567-1:2000, except for the deviations indicated in 6.2, 6.3 and 6.4. 6.2 Calibration measurements Calibration me
46、asurements shall be made according to ISO 12567-1:2000, 6.2. If calibration data for the surround panel thermal resistance Rsur have been already measured according to ISO 12567-1:2000, the calibration results may be used. The notation for determination of the environmental temperature for roof or p
47、rojecting windows according to the procedure indicated in ISO 12567-1:2000 is given in Figure A.1. For the determination of the heat flow rate through the edge zone, edge, between calibration panel and surround panel ISO 12567-1:2000, Equation (10), values for the linear thermal transmittance of the edge zone, edge, are given in Table B.1. 6.3 Specimen measurements After installation of the test specimen, the air velocity on the cold side shall be adjusted to give the same air velocity (within 10 %) as found with the calibration panel, when setting the total surface thermal resistance
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