NFPA 257-2017 Standard on Fire Test for Window and Glass Block Assemblies (Effective Date 12 1 2016).pdf

1、 NFPA 257 2017 Standard on Fire Test for Window and Glass Block AssembliesIMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA STANDARDS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA STANDARDS NFPA codes, standards, recommended practices, and guides (“NFPA Standards”), of which the docu

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8、 or maker of the statement. REMINDER: UPDATING OF NFPA STANDARDS Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be aware that NFPA Standards may be amended from time to time through the issuance of Tentative Interim Amendments or corrected by Errata. An o

9、fcial NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendment and any Errata then in effect. In order to determine whether an NFPA Standard has been amended through the issuance of Tentative Interim Amendments or corrected by E

10、rrata, visit the “Codes email: stds_adminnfpa.org. For more information about NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and standards can be viewed at no cost at www.nfpa.org/docinfo.257-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire

11、 Protection Association, Quincy, Massachusetts 02169. Copyright 2016 National Fire Protection Association . All Rights Reserved. NFPA 257 Standard on Fire Test for Window and Glass Block Assemblies 2017 Edition This edition of NFPA 257, Standard on Fire Test for Window and Glass Block Assemblies, wa

12、s prepared by the Technical Committee on Fire Tests. It was issued by the Standards Council on November 11, 2016, with an effective date of December 1, 2016, and supersedes all previous editions. This edition of NFPA 257 was approved as an American National Standard on December 1, 2016. Origin and D

13、evelopment of NFPA 257 NFPA 257 was tentatively adopted by NFPA in 1969 and ofcially adopted in 1970. Subsequent revisions were released in 1975, 1980, 1985, and 1990. The 1996 edition of NFPA 257 was a complete rewrite that included editorial and technical revisions. Many of those revisions were ma

14、de to parallel those of NFPA 252, Standard Methods of Fire Tests of Door Assemblies. The technical revisions included modications to the furnace pressure. The neutral pressure was eliminated so that the test assembly could be tested to the pressure required by other code requirements (i.e., NFPA 101

15、, Life Safety Code, and the model building codes). In addition, the duration of the test method was extended beyond the 45 minutes required in previous editions to allow for the testing of new glazing materials. The 2000 edition was completely revised for the purposes of consistency and editorial re

16、formatting. It was modied so that the test protocols and equipment used would be more consistent with the provisions in NFPA 251, Standard Method of Tests of Fire Endurance of Building Construction and Materials, and NFPA 252, Standard Method of Fire Tests of Door Assemblies. This edition recognized

17、 the positive pressure testing required by some of the model building codes and also provided greater clarication on how to conduct the hose stream test to achieve greater repeatability and reproducibility. The 2007 edition was a complete revision for compliance with the Manual of Style for NFPA Tec

18、hnical Committee Documents. It also contained revisions to its scope and purpose provisions to clarify the committees intent, and it contained a new reference to ASTM E2226, Standard Practice for Application of Hose Stream, for details on conducting the hose stream test. The 2012 edition was revised

19、 to require that all tests be run under positive pressure. The 2017 edition includes a new time-temperature curve. The allowed time between the test and the hose stream test has been reduced, and a new reference for the hose stream test procedure has been added.FIRE TEST FOR WINDOW AND GLASS BLOCK A

20、SSEMBLIES 257-2 2017 Edition Technical Committee on Fire Tests Barry L. Badders, Jr., Chair Intertek Testing Services, TX RT Scott W. Adams, Park City Fire Service District, UT E Rep. International Fire Marshals Association Farid Alfawakhiri, American Iron and Steel Institute, IL M James A. Burns, N

21、ew York State Department, NY E Rep. Firemens Association of the State of New York Benjamin H. Caldwell, Skidmore, Owings & Merrill LLP, NY SE Marcos Chaos, FM Global, MA I Gordon H. Damant, Inter-City Testing & Consulting Corp. of California, CA SE Rick D. Davis, National Institute of Standards & Te

22、chnology, MD RT Scott E. Dillon, Crane Engineering, MN SE William E. Fitch, P, FL SE Richard G. Gann, Gaithersburg, MD SE Marcelo M. Hirschler, GBH International, CA SE Paul A. Hough, Armstrong World Industries, Inc., PA M William E. Koffel, Koffel Associates, Inc., MD SE Sergei V. Levchik, Israel C

23、hemicals Ltd. (ICL-IP), NY M Rep. ACC-North American Flame Retardant Alliance Richard T. Long, Jr., Exponent, Inc., MD M Rep. Upholstered Furniture Action Council James Andrew Lynch, Amped I Research & Development, PA SE John Martell, Professional Fire Fighters of Maine/IAFF, ME L Rep. International

24、 Association of Fire Fighters Rodney A. McPhee, Canadian Wood Council, Canada M Kathleen A. Newman, Firetect, CA M Arthur J. Parker, JENSEN HUGHES, MD SE Jillian Roberts, Alaska Fire Marshals Ofce, AK E Kenneth Roberts, ICC Evaluation Services, AL U Michael L. Savage, Sr., City of Rio Rancho, NM E D

25、avid T. Sheppard, U.S. Bureau of Alcohol, Tobacco, Firearms & Explosives, MD RT Dwayne E. Sloan, UL LLC, NC RT Stanislav I. Stoliarov, University of Maryland, MD SE Kuma Sumathipala, American Wood Council, VA M Alternates Erik H. Anderson, Koffel Associates, Inc., MD SE (Alt. to William E. Koffel) J

26、esse J. Beitel, JENSEN HUGHES, MD SE (Alt. to Arthur J. Parker) Richard J. Davis, FM Global, MA I (Alt. to Marcos Chaos) Timothy Earl, GBH International, MI SE (Alt. to Marcelo M. Hirschler) Sam W. Francis, American Wood Council, PA M (Alt. to Kuma Sumathipala) Matthew Freeborn, Intertek Testing Ser

27、vices, PA RT (Alt. to Barry L. Badders, Jr.) Stephen Paul Fuss, U.S. Bureau of Alcohol, Tobacco, Firearms & Explosives, MD RT (Alt. to David T. Sheppard) Justin A. Geiman, Fire and Risk Alliance LLC, MD SE (Alt. to James Andrew Lynch) Marc L. Janssens, Southwest Research Institute, TX RT (Voting Alt

28、.) Randall K. Laymon, UL LLC, IL RT (Alt. to Dwayne E. Sloan) Michael Schmeida, Gypsum Association, OH M (Voting Alt.) Ineke Van Zeeland, Canadian Wood Council, Canada M (Alt. to Rodney A. McPhee) Matthew T. Vinci, International Association of Fire Fighters, DC L (Alt. to John Martell) Robert J. Wil

29、ls, American Iron and Steel Institute, AL M (Alt. to Farid Alfawakhiri) Joe Ziolkowski, American Furniture Manufacturers Association, NC M (Alt. to Richard T. Long, Jr.) Nonvoting Robert H. Barker, American Fiber Manufacturers Association, VA M Rep. American Fiber Manufacturers Association Rohit Kha

30、nna, U.S. Consumer Product Safety Commission, MD C Rep. U.S. Consumer Product Safety Commission Andrew Lock, U.S. Consumer Product Safety Commission, MD C Rep. U.S. Consumer Product Safety Commission Tracy L. Vecchiarelli, NFPA Staff LiaisonCOMMITTEE PERSONNEL 257-3 2017 Edition This list represents

31、 the membership at the time the Committee was balloted on the nal text of this edition. Since that time, changes in the membership may have occurred. A key to classications is found at the back of the document. NOTE: Membership on a committee shall not in and of itself constitute an endorsement of t

32、he Association or any document developed by the committee on which the member serves. Committee Scope: This Committee shall have primary responsibility for documents on re testing procedures, for reviewing existing re test standards and recommending appropriate action to NFPA, for recommending the a

33、pplication of and advising on the interpretation of acceptable test standards for re problems of concern to NFPA technical committees and members, and for acting in a liaison capacity between NFPA and the committees of other organizations writing re test standards. This Committee does not cover re tests that are used to evaluate extinguishing agents, devices, or systems.