1、 NFPA 12A Standard on Halon 1301 Fire Extinguishing Systems 2018IMPORTANT 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 document conta
2、ined herein is one, are developed through a consensus standards development process approved by the American National Standards Institute. This process brings together volunteers representing varied viewpoints and interests to achieve consensus on re and other safety issues. While the NFPA administe
3、rs the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy of any information or the soundness of any judgments contained in NFPA Standards. The NFPA disclaims liability for any personal injury, property,
4、 or other damages of any nature whatsoever, whether special, indirect, consequential or compensatory, directly or indirectly resulting from the publication, use of, or reliance on NFPA Standards. The NFPA also makes no guaranty or warranty as to the accuracy or completeness of any information publis
5、hed herein. In issuing and making NFPA Standards available, the NFPA is not undertaking to 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 r
6、ely on his or her own independent judgment or, as appropriate, seek the advice of a competent 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 Standards. Nor
7、 does the NFPA list, certify, test, or inspect products, designs, or installations for compliance with this document. Any certication 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 certier or maker
8、 of the statement. REVISION SYMBOLS IDENTIFYING CHANGES FROM THE PREVIOUS EDITION Text revisions are shaded. A before a section number indicates that words within that section were deleted and a to the left of a table or gure number indicates a revision to an existing table or gure. When a chapter w
9、as heavily revised, the entire chapter is marked throughout with the symbol. Where one or more sections were deleted, a is placed between the remaining sections. Chapters, annexes, sections, gures, and tables that are new are indicated with an N. Note that these indicators are a guide. Rearrangement
10、 of sections may not be captured in the markup, but users can view complete revision details in the First and Second Draft Reports located in the archived revision information section of each code at www.nfpa.org/docinfo. Any subsequent changes from the NFPA Technical Meeting, Tentative Interim Amen
11、dments, and Errata are also located there. ALERT: THIS STANDARD HAS BEEN MODIFIED BY A TIA OR ERRATA 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 a Tentative Interim A
12、mendment (TIA) or corrected by Errata. An ofcial NFPA Standard at any point in time consists of the current edition of the document together with any TIAs and Errata then in effect. To determine whether an NFPA Standard has been amended through the issuance of Tentative Interim Amendments or correct
13、ed by Errata, go to www.nfpa.org/docinfo to choose from the list of NFPA Standards or use the search feature to select the NFPA Standard number (e.g., NFPA 13). The document information page provides up-to-date document-specic information as well as postings of all existing TIAs and Errata. It also
14、includes the option to register for an “Alert” feature to receive an automatic email notication when new updates and other information are posted regarding the document. ISBN: 978-145591883-6 (Print) ISBN: 978-145591884-3 (PDF) ISBN: 978-145591885-0 (eBook)IMPORTANT NOTICES AND DISCLAIMERS CONCERNIN
15、G NFPA STANDARDS ADDITIONAL NOTICES AND DISCLAIMERS Updating of NFPA Standards Users of NFPA codes, standards, recommended practices, and guides (“NFPA Standards”) should be aware that these documents may be superseded at any time by the issuance of new editions or may be amended from time to time t
16、hrough the issuance of Tentative Interim Amendments or corrected by Errata. An ofcial NFPA Standard at any point in time consists of the current edition of the document together with any Tentative Interim Amendments and any Errata then in effect. In order to determine whether a given document is the
17、 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 Subscription Service, visit the NFPA website at www.nfpa.org, or contact the NFPA a
18、t the address listed below. Interpretations of NFPA Standards A statement, written or oral, that is not processed in accordance with Section 6 of the Regulations Governing the Development of NFPA Standards shall not be considered the ofcial position of NFPA or any of its Committees and shall not be
19、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 Standard. The users of NFPA Standards bear the sole responsibility for det
20、ermining 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 Standards. NFPA adheres to the policy of the American National Standards Institute (A
21、NSI) 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 with an NFPA Standard may require use of an invention covered by
22、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 Policy, a patent holder has led a statement of willingness to gran
23、t licenses under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license, copies of such led statements can be obtained, on request, from NFPA. For further information, contact the NFPA at the address listed below. Law and Regulations Use
24、rs of NFPA Standards 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 compliance with applicable laws, and these documents may not be construed
25、as doing so. Copyrights NFPA Standards are copyrighted. 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-regulation, standardization, and the promotion of safe practices and methods. By
26、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 Standards for regulatory purposes should be accomplished through adoption by reference. The term “adoption by reference” mean
27、s 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 following the uses made of its documents, adopting authorities are requested to n
28、otify the NFPA (Attention: Secretary, Standards Council) in writing of such use. For technical assistance and questions concerning adoption of NFPA Standards, contact NFPA at the address below. For Further Information All questions or other communications relating to NFPA Standards and all requests
29、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 for proposing revisions to NFPA standards during regular revision cycles, should be
30、 sent to NFPA headquarters, addressed to the attention of the Secretary, Standards Council, NFPA, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269-9101; 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
31、at no cost at www.nfpa.org/docinfo.12A-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 Reserved. NFPA 12A Standard on Halon 1301 Fire E
32、xtinguishing Systems 2018 Edition This edition of NFPA 12A, Halon 1301 Fire Extinguishing Systems, was prepared by the Technical Committee on Gaseous Fire Extinguishing Systems. It was issued by the Standards Council on November 10, 2017, with an effective date of November 30, 2017, and supersedes a
33、ll previous editions. This edition of NFPA 12A was approved as an American National Standard on November 30, 2017. Origin and Development of NFPA 12A The Committee on Halogenated Fire Extinguishing Systems was formed in the fall of 1966 and held its rst meeting during December of that year. The Comm
34、ittee was organized into four Subcommittees who separately prepared various portions of the standard for review by the full Committee at meetings held in September and December 1967. The standard was submitted and adopted at the Annual Meeting in Atlanta, Georgia, May 2024, 1968. The 1968 edition wa
35、s the rst edition of this standard and was adopted in tentative form in accordance with NFPA regulations. In 1969 the Committee determined that the standard had not yet been sufciently tested and elected to carry it in tentative status for one more year. It was presented for ofcial adoption in 1970.
36、 The rst ofcial version of the standard was adopted at the Annual Meeting of NFPA held in Toronto, Ontario in May 1970. Revisions were made in 1972, 1973, 1977, and 1980. The 1985 edition was a complete revision of the standard. The standard was revised in 1987 and again in 1989. The standard was co
37、mpletely rewritten for the 1992 revision to more clearly state the requirements and to separate the mandatory requirements from the advisory text in an effort to make the document more usable, enforceable, and adoptable. The main topic addressed in this revision was decommissioning and removal of sy
38、stems. The standard was updated to conform to the Manual of Style for NFPA Technical Committee Documents for the 2004 edition. For the 2009 edition, the standard was revised to address testing and recharging of Halon 1301 cylinders. The 2015 edition incorporated support for electronic storage of sys
39、tem maintenance records. For the 2018 edition, the annex chapter on nozzle and piping calculations (Annex H) was revised to correct errors, comply with the Manual of Style for NFPA Technical Committee Documents, and clarify the details of the procedure.HALON 1301 FIRE EXTINGUISHING SYSTEMS 12A-2 201
40、8 Edition Foreword Halon 1301 (bromotriuoromethane, or CBrF3) is a colorless, odorless, electrically nonconductive gas that is an effective medium for extinguishing res. Halon 1301 is included in the Montreal Protocol on Substances That Deplete the Ozone Layer signed September 16, 1987. The protocol
41、 permits continued availability of halogenated re extinguishing agents at 1986 production levels. That protocol, and subsequent amendments, restrict the production of this agent. In addition, local jurisdictions within some countries (e.g., the EPA in the United States) have enacted further rules re
42、gulating the production, use, handling, and disposal of this agent. The user of this standard is advised to consult local authorities for current regulations. Halon 1301 re extinguishing systems are useful within the limits of this standard in extinguishing res in specic hazards or equipment and in
43、occupancies where an electrically nonconductive medium is essential or desirable, or where cleanup of other media presents a problem.COMMITTEE PERSONNEL 12A-3 2018 Edition Technical Committee on Gaseous Fire Extinguishing Systems Brent S. Ehmke, Chair Ehmke Associates, NC SE Ronald C. Adcock, Secret
44、ary Marsh Risk Consulting, AZ I Katherine Adrian, Tyco Fire Suppression & Building Products, WI M Paul Anastasia, American International Group, Inc. (AIG), MA I Oded Aron, Port Authority of New York & New Jersey, NY U John E. Dellogono, Liberty Mutual Property, MA I Todd A. Dillon, Global Asset Prot
45、ection Services, LLC, OH I Laurence E. Fisher, U.S. Coast Guard, DC E William A. Froh, U.S. Department of Energy, DC U Raymond N. Hansen, U.S. Department of the Air Force, FL E Jeffrey L. Harrington, Harrington Group, Inc., GA SE Mark E. Herzog, The Hiller Companies, AL IM Scott A. Hill, JENSEN HUGH
46、ES, MD SE Steven Hodges, Alion Science And Technology, CA U W. David Hoffman, Firetrace International, AZ M Giuliano Indovino, North American Fire Guardian Technology, Inc., Italy M Robert Kasiski, FM Global, MA I Norbert W. Makowka, National Association of Fire Equipment Distributors, IL IM Rep. Na
47、tional Association of Fire Equipment Distributors Bella A. Maranion, U.S. Environmental Protection Agency, DC E Robert G. Richard, Honeywell, Inc., NY M Paul E. Rivers, 3M Company, MN M Mark L. Robin, Chemours, DE M Joseph A. Senecal, Kidde-Fenwal, Inc., MA M Blake M. Shugarman, UL LLC, IL RT John C
48、. Spalding, Healey Fire Protection, Inc., MI M Rep. Fire Suppression Systems Association Brad T. Stilwell, Fike Corporation, MO M Robert T. Wickham, Wickham Associates, NH SE Thomas J. Wysocki, Guardian Services, Inc., IL SE Alternates Maurizio Barbuzzi, North American Fire Guardian Technology, Inc.
49、, Italy M (Alt. to Giuliano Indovino) Charles O. Bauroth, Liberty Mutual, MA I (Alt. to John E. Dellogono) Thomas A. Downey, Marsh Risk Consulting, CT I Mark E. Fessenden, Tyco Fire Protection Products, WI M (Alt. to Katherine Adrian) Eric W. Forssell, JENSEN HUGHES, MD SE (Alt. to Scott A. Hill) Ryan Gamboa, Firetrace USA, AZ M (Alt. to W. David Hoffman) Kevin Holly, Jr., UL LLC, IL RT (Alt. to Blake M. Shugarman) Daniel J. Hubert, Amerex/Janus Fire Systems, IN M (Alt. to John
