NFPA 270-2018 Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber (Effective Date 11 30 2017).pdf

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31、. All NFPA codes and standards can be viewed at no cost at www.nfpa.org/docinfo.270-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2017, National Fire Protection Association . All Rights Re

32、served. NFPA 270 Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber 2018 Edition This edition of NFPA 270, Standard Test Method for Measurement of Smoke Obscuration Using a Conical Radiant Source in a Single Closed Chamber, was prepare

33、d by the Technical Committee on Fire Tests. It was issued by the Standards Council on November 10, 2017, with an effective date of November 30, 2017, and supersedes all previous editions. This edition of NFPA 270 was approved as an American National Standard on November 30, 2017. Origin and Developm

34、ent of NFPA 270 The rst edition of this standard, in 1998, was based on the 1997 edition of NFPA 258, Standard Research Test Method for Determining Smoke Generation of Solid Materials, with minor revisions. Originally, NFPA 258 was used for research and product development. NFPA 270 was developed so

35、 that it could be used within the regulatory community for enforcement purposes. This document was developed under a different title and number designation so as not to confuse the end user, and to establish and clarify the intention and limitations that are now part of the standard. The 2002 editio

36、n of this standard was updated to incorporate the Manual of Style for NFPA Technical Committee Documents requirements and editorial updates. The 2008 edition of this standard contained mainly editorial revisions and revised denitions for consistency with other standards. The 2013 edition of this sta

37、ndard reconrmed of the previous edition with updates to referenced standards. The 2018 edition updates the pressure sensor requirements to reect modern technology and includes updates to referenced codes and standards.MEASUREMENT OF SMOKE OBSCURATION USING A CONICAL RADIANT SOURCE IN A SINGLE CLOSED

38、 CHAMBER 270-2 2018 Edition Technical Committee on Fire Tests Barry L. Badders, Jr., Chair Intertek Testing Services, TX RT Farid Alfawakhiri, American Iron and Steel Institute, IL M James A. Burns, New York State Department, NY E Rep. Firemens Association of the State of New York Karen C Carpenter,

39、 Southwest Research Institute, TX RT Gordon H. Damant, Inter-City Testing & Consulting Corp. of California, CA SE Rick D. Davis, National Institute of Standards & Technology, MD RT Scott E. Dillon, Crane Engineering, MN SE William E. Fitch, P, FL SE Richard G. Gann, Gaithersburg, MD SE Marcelo M. Hi

40、rschler, 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 Chemicals Ltd. (ICL-IP), NY M Rep. ACC-North American Flame Retardant Alliance James Andrew Lynch, The Fire Solutions Group, PA SE John

41、Martell, Professional Fire Fighters of Maine/IAFF, ME L Rep. International 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 Michael L. Savage, Sr., City of Rio Rancho, NM E Michael Schmeida, Gypsu

42、m Association, OH M David 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 Dong Zeng, FM Global, MA I Rep. FM Global Alternates Erik H. Anderso

43、n, Koffel Associates, Inc., MD SE (Alt. to William E. Koffel) Jesse J. Beitel, JENSEN HUGHES, MD SE (Alt. to Arthur J. Parker) Richard J. Davis, FM Global, MA I (Alt. to Dong Zeng) Timothy Earl, GBH International, MI SE (Alt. to Marcelo M. Hirschler) Sam W. Francis, American Wood Council, PA M (Alt.

44、 to Kuma Sumathipala) 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) Karl Dana Houser, Intertek, PA RT (Alt. to Barry L. Badders, Jr.) Marc L. Janssens, Sout

45、hwest Research Institute, TX RT (Alt. to Karen C Carpenter) 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. Wills, American Iron and Steel Institute, AL M (Alt. to Farid

46、Alfawakhiri) Luke C. Woods, UL LLC, MA RT (Alt. to Dwayne E. Sloan) Joe Ziolkowski, American Furniture Manufacturers Association, NC M (Voting Alternate) Nonvoting Robert H. Barker, American Fiber Manufacturers Association, VA M Rep. American Fiber Manufacturers Association Rohit Khanna, U.S. Consum

47、er 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 Liaison This list represents the membership at the time the Committee was balloted

48、 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 the Association or any document developed by the commit

49、tee 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 application 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