1、NFPA268 Standard Test Method for Determining Ignitibility of Exterior Wall Assemblies Using a Radiant Heat Energy Source 2012 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards Organization Become a MemberSubscribeto theRegister forSeminars, Webinars, and O
2、nline CoursesVisit theNFPA CatalogNOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTS NFPAcodes, standards, recommended practices, and guides (“NFPA Documents”), of which the document contained herein is one, are developed through a consensus standards development process approve
3、d by the American National Standards Institute. This process brings together volunteers representing varied viewpoints and interests to achieve consensus on fire and other safety issues. While the NFPA administers the process and establishes rules to promote fairness in the development of consensus,
4、 it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in NFPA Documents. The NFPA disclaims liability for any personal injury, property or other damages of any nature whatsoever, whether special, indirect, consequential or co
5、mpensatory, directly or indirectly resulting from the publication, use of, or reliance on NFPA Documents. The NFPA also makes no guaranty or warranty as to the accuracy or completeness of any information published herein. In issuing and making NFPA Documents available, the NFPA is not undertaking to
6、 render professional or other services for or on behalf of any person or entity. Nor is the NFPA undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgment or, as appropriate, seek the advice of a compet
7、ent professional in determining the exercise of reasonable care in any given circumstances. The NFPA has no power, nor does it undertake, to police or enforce compliance with the contents of NFPA Documents. Nor does the NFPA list, certify, test, or inspect products, designs, or installations for com
8、pliance with this document. Any certification or other statement of compliance with the requirements of this document shall not be attributable to the NFPA and is solely the responsibility of the certifier or maker of the statement. ISBN: 978-145590290-3 (Print) ISBN: 978-145590357-3 (PDF) 12/11IMPO
9、RTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTS IMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTS ADDITIONAL NOTICES AND DISCLAIMERS Updating of NFPA Documents Users of NFPA codes, standards, recommended practices, and guides (“NFPA Documents”) should be aware that these documents
10、may be superseded at any time by the issuance of new editions or may be amended from time to time through the issuance of Tentative Interim Amendments. An official NFPA Document at any point in time consists of the current edition of the document together with any Tentative Interim Amendments and an
11、y Errata then in effect. In order to determine whether a given document is the current edition and whether it has been amended through the issuance of Tentative Interim Amendments or corrected through the issuance of Errata, consult appropriate NFPA publications such as the National Fire Codes Subsc
12、ription Service, visit the NFPA website at www.nfpa.org, or contact the NFPA at the address listed below. Interpretations of NFPA Documents A statement, written or oral, that is not processed in accordance with Section 6 of the Regulations Governing Committee Projects shall not be considered the off
13、icial position of NFPA or any of its Committees and shall not be considered to be, nor be relied upon as, a Formal Interpretation. Patents The NFPA does not take any position with respect to the validity of any patent rights referenced in, related to, or asserted in connection with an NFPA Document.
14、 The users of NFPA Documents bear the sole responsibility for determining the validity of any such patent rights, as well as the risk of infringement of such rights, and the NFPA disclaims liability for the infringement of any patent resulting from the use of or reliance on NFPA Documents. NFPA adhe
15、res to the policy of the American National Standards Institute (ANSI) regarding the inclusion of patents in American National Standards (“the ANSI Patent Policy”), and hereby gives the following notice pursuant to that policy: NOTICE: The users attention is called to the possibility that compliance
16、with an NFPA Document may require use of an invention covered by patent rights. NFPA takes no position as to the validity of any such patent rights or as to whether such patent rights constitute or include essential patent claims under the ANSI Patent Policy. If, in connection with the ANSI Patent P
17、olicy, a patent holder has filed a statement of willingness to grant licenses under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, copies of such filed statements can be obtained, on request, from NFPA. For further information,
18、contact the NFPA at the address listed below. Law and Regulations Users of NFPA Documents should consult applicable federal, state, and local laws and regulations. NFPA does not, by the publication of its codes, standards, recommended practices, and guides, intend to urge action that is not in compl
19、iance with applicable laws, and these documents may not be construed as doing so. Copyrights NFPA Documents are copyrighted by the NFPA. They are made available for a wide variety of both public and private uses. These include both use, by reference, in laws and regulations, and use in private self-
20、regulation, standardization, and the promotion of safe practices and methods. By making these documents available for use and adoption by public authorities and private users, the NFPA does not waive any rights in copyright to these documents. Use of NFPA Documents for regulatory purposes should be
21、accomplished through adoption by reference. The term “adoption by reference” means the citing of title, edition, and publishing information only. Any deletions, additions, and changes desired by the adopting authority should be noted separately in the adopting instrument. In order to assist NFPA in
22、following the uses made of its documents, adopting authorities are requested to notify the NFPA (Attention: Secretary, Standards Council) in writing of such use. For technical assistance and questions concerning adoption of NFPA Documents, contact NFPA at the address below. For Further Information A
23、ll questions or other communications relating to NFPA Documents and all requests for information on NFPA procedures governing its codes and standards development process, including information on the procedures for requesting Formal Interpretations, for proposing Tentative Interim Amendments, and fo
24、r proposing revisions to NFPA documents during regular revision cycles, should be sent to NFPA headquarters, addressed to the attention of the Secretary, Standards Council, NFPA, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02169-7471; email: stds_adminnfpa.org For more information about NFPA, vis
25、it the NFPA website at www.nfpa.org. 12/11Copyright 2012 National Fire Protection Association. All Rights Reserved.NFPA268Standard Test Method forDetermining Ignitability of Exterior Wall Assemblies Using a RadiantHeat Energy Source2012 EditionThis edition of NFPA 268, Standard Test Method for Deter
26、mining Ignitability of Exterior WallAssemblies Using a Radiant Heat Energy Source, was prepared by the Technical Committee on FireTests. It was issued by the Standards Council on December 13, 2011, with an effective date ofJanuary 2, 2012, and supersedes all previous editions.This edition of NFPA 26
27、8 was approved as an American National Standard on January 2, 2012.Origin and Development of NFPA 268The 1996 edition represented the first edition for a standard that addressed the determi-nation of ignitability characteristics of exterior wall assemblies. The test method incorporateda radiant heat
28、 energy source. At the time this document was published, there were no stan-dardized test methods available within the standard writing organizations, and this documentcomplemented the fire test methods available within the NFPA standards. The results of thistest can be used to measure and describe
29、properties of materials in controlled laboratoryconditions and also can be used as an element of a fire risk assessment.The 2001 edition incorporated the new format and editorial changes as required to satisfythe Manual of Style for NFPA Technical Committee Documents. Revisions to 11.4.2, 11.4.2.1,
30、and12.1(10)(c) were made to incorporate the specific time period that was originally within thedefinition. No significant revisions were made in the 2007 edition.The 2012 edition has been revised editorially. Referenced publications have been revisedto reference the most up-to-date documents.2681NFP
31、A and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169.Technical Committee on Fire TestsWilliam E. Fitch, ChairPhyrefish Enterprises, Inc., FL SEFarid Alfawakhiri, American Iron and Steel Institute,IL MBarry L. Ba
32、dders, Jr., Southwest Research Institute,TX RTJesse J. Beitel, Hughes Associates, Inc., MD SERobert G. Bill, Jr., FM Global, MA IGordon H. Damant, Inter-City Testing no copy will be sent to you.) Date April 1, 200X Name John J. Doe Tel. No. 716-555-1234 Company Air Canada Pilots Association Email St
33、reet Address 123 Summer Street Lane City Lewiston State NY Zip 14092 *If you wish to receive a hard copy, a street address MUST be provided. Deliveries cannot be made to PO boxes. Please indicate organization represented (if any) 1. (a) NFPA Document Title National Fuel Gas Code NFPA No. i.e., use u
34、nderscore to denote wording to be inserted (inserted wording) and strike-through to denote wording to be deleted (deleted wording). Revise definition of effective ground-fault current path to read: 3.3.78 Effective Ground-Fault Current Path. An intentionally constructed, permanent, low impedance ele
35、ctrically conductive path designed and intended to carry underground electric fault current conditions from the point of a ground fault on a wiring system to the electrical supply source. 4. Statement of Problem and Substantiation for Proposal: (Note: State the problem that would be resolved by your
36、 recommendation; give the specific reason for your Proposal, including copies of tests, research papers, fire experience, etc. If more than 200 words, it may be abstracted for publication.) Change uses proper electrical terms. 5. Copyright Assignment (a) I am the author of the text or other material
37、 (such as illustrations, graphs) proposed in the Proposal. (b) Some or all of the text or other material proposed in this Proposal was not authored by me. Its source is as follows: (please identify which material and provide complete information on its source) ABC Co. I hereby grant and assign to th
38、e NFPA all and full rights in copyright in this Proposal and understand that I acquire no rights in any publication of NFPA in which this Proposal in this or another similar or analogous form is used. Except to the extent that I do not have authority to make an assignment in materials that I have id
39、entified in (b) above, I hereby warrant that I am the author of this Proposal and that I have full power and authority to enter into this assignment. Signature (Required) PLEASE USE SEPARATE FORM FOR EACH PROPOSAL Mail to: Secretary, Standards Council National Fire Protection Association 1 Batteryma
40、rch Park Quincy, MA 02169-7471 OR Fax to: (617) 770-3500 OR Email to: proposals_commentsnfpa.org 12/11-B NFPA Document Proposal Form NOTE: All Proposals must be received by 5:00 pm EST/EDST on the published Proposal Closing Date. For further information on the standards-making process, please contac
41、t the Codes and Standards Administration at 617-984-7249 or visit www.nfpa.org/codes. For technical assistance, please call NFPA at 1-800-344-3555. FOR OFFICE USE ONLYLog #: Date Recd: Please indicate in which format you wish to receive your ROP/ROC electronic paper download (Note: If choosing the d
42、ownload option, you must view the ROP/ROC from our website; no copy will be sent to you.) Date Name Tel. No. Company Email Street Address City State Zip *If you wish to receive a hard copy, a street address MUST be provided. Deliveries cannot be made to PO boxes. Please indicate organization represe
43、nted (if any) 1. (a) NFPA Document Title NFPA No. i.e., use underscore to denote wording to be inserted (inserted wording) and strike-through to denote wording to be deleted (deleted wording).4. Statement of Problem and Substantiation for Proposal: (Note: State the problem that would be resolved by
44、your recommendation; give the specific reason for your Proposal, including copies of tests, research papers, fire experience, etc. If more than 200 words, it may be abstracted for publication.) 5. Copyright Assignment (a) I am the author of the text or other material (such as illustrations, graphs)
45、proposed in the Proposal. (b) Some or all of the text or other material proposed in this Proposal was not authored by me. Its source is as follows: (please identify which material and provide complete information on its source) I hereby grant and assign to the NFPA all and full rights in copyright i
46、n this Proposal and understand that I acquire no rights in any publication of NFPA in which this Proposal in this or another similar or analogous form is used. Except to the extent that I do not have authority to make an assignment in materials that I have identified in (b) above, I hereby warrant t
47、hat I am the author of this Proposal and that I have full power and authority to enter into this assignment.Signature (Required) PLEASE USE SEPARATE FORM FOR EACH PROPOSAL Mail to: Secretary, Standards Council National Fire Protection Association 1 Batterymarch Park Quincy, MA 02169-7471 OR Fax to: (617) 770-3500 OR Email to: proposals_commentsnfpa.org 12/11-C
