ISO-12468-1-2003.pdf
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1、 Reference number ISO 12468-1:2003(E) ISO 2003 INTERNATIONAL STANDARD ISO 12468-1 First edition 2003-03-15 External exposure of roofs to fire Part 1: Test method Exposition des toitures un feu extrieur Partie 1: Mthode dessais Copyright International Organization for Standardization Provided by IHS
2、under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12468-1:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file ma
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5、e file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any
6、form or by any means, electronic or mechanical, including photocopying and microfilm, without 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
7、09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2003 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking pe
8、rmitted without license from IHS -,-,- ISO 12468-1:2003(E) ISO 2003 All rights reserved iii Contents Page Forewordiv Introduction v 1 Scope1 2 Normative references .1 3 Terms and definitions.1 4 Symbols .3 5 Selection of test specimen pitch.3 6 Test specimens .4 6.1 General requirements.4 6.2 Select
9、ion of standard supporting elements.5 6.3 Positioning of joints6 6.4 Edge detailing7 7 Test equipment7 7.1 Exposure levels.7 7.2 Brands8 7.3 Wind10 7.4 Radiation10 7.5 Timing device 10 7.6 Calibration element.10 7.7 Specimen holder .10 7.8 Gas burner.14 7.9 Stand 15 8 Test conditions15 8.1 Test envi
10、ronment15 8.2 Calibration procedure.16 9 Conditioning and test preparation 16 9.1 Conditioning16 9.2 Protection of the edges17 10 Test procedure 17 10.1 General.17 10.2 Commencement of the test17 10.3 Ignition and positioning of the brands .18 10.4 End of the test .19 10.5 Post-test examination.19 1
11、1 Observations and measurements .19 11.1 General.19 11.2 External fire spread.19 11.3 Fire penetration.20 11.4 Opening20 11.5 Damage 20 12 Expression of test results20 13 Test report20 Annex A (normative) Direct field of application22 Copyright International Organization for Standardization Provided
12、 by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12468-1:2003(E) iv ISO 2003 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldw
13、ide 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 th
14、at 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
15、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 r
16、equires 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 12468-1 was prepared by Te
17、chnical Committee ISO/TC 92, Fire safety, Subcommittee SC 2, Fire containment. ISO 12468 consists of the following parts, under the general title External exposure of roofs to fire Part 1: Test method Part 2: Classification Copyright International Organization for Standardization Provided by IHS und
18、er license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12468-1:2003(E) ISO 2003 All rights reserved v Introduction This part of ISO 12468 specifies a test method that relates to the effects o
19、f fires on roofs. The test method described in this part of ISO 12468 represents the effect of two levels of fire exposure. Level A: A large burning brand coming from a nearby building and falling onto the roof. Level A considers the effects of wind and additional radiant heat. Level B: A small burn
20、ing brand transported by the wind from a remote fire and falling onto the roof. Level B considers the effect of wind but without additional radiant heat. Any national regulation may refer to only one or both of the two levels of fire exposure. Copyright International Organization for Standardization
21、 Provided by IHS under license with ISO Licensee=Aramco HQ/9980755100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Aramco HQ/99807
22、55100 Not for Resale, 04/16/2007 10:05:20 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISO 12468-1:2003(E) ISO 2003 All rights reserved 1 External exposure of roofs to fire Part 1: Test method CAUTION The attention of all persons concerned with man
23、aging and carrying out this fire test is drawn to the fact that fire testing may be hazardous and that there is a possibility that toxic and/or harmful smoke and gases may be evolved during the test. Mechanical and operational hazards may also arise during the construction of the test elements or st
24、ructures, their testing and disposal of test residues. An assessment of all potential hazards and risks to health shall be made and safety precautions shall be identified and provided. Written safety instructions shall be issued. Appropriate training shall be given to relevant personnel. Laboratory
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