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NFPA 12-2018 en Standard on Carbon Dioxide Extinguishing Systems (Effective Date 11 30 2017).pdf

1、 NFPA 12 Standard on Carbon Dioxide 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 contain

2、ed 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 administers

3、 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, o

4、r 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 publishe

5、d 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 rel

6、y 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 d

7、oes 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 o

8、f 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 was

9、 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 o

10、f 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 Amendm

11、ents, 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 Ame

12、ndment (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 corrected

13、 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 in

14、cludes 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: 978-145591872-0 (Print) ISBN: 978-145591881-2 (PDF) ISBN: 978-145591882-9 (eBook)IMPORTANT NOTICES AND DISCLAIMERS CONCERNING

15、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 thr

16、ough 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 c

17、urrent 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 at

18、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 co

19、nsidered 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 deter

20、mining 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 (ANS

21、I) 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 pa

22、tent 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 grant

23、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 Users

24、 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 as

25、 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 ma

26、king 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” means

27、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 not

28、ify 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 fo

29、r 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 s

30、ent 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 at

31、 no cost at www.nfpa.org/docinfo.12-1 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 12 Standard on Carbon Dioxide Exting

32、uishing Systems 2018 Edition This edition of NFPA 12, Standard on Carbon Dioxide 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 superse

33、des all previous editions. This edition of NFPA 12 was approved as an American National Standard on November 30, 2017. Origin and Development of NFPA 12 Work on this standard was initiated in 1928 by the Committee on Manufacturing Risks and Special Hazards. The standard was rst adopted in 1929 and w

34、as revised in 1933, 1939, 1940, 1941, 1942 (January and May), 1945, 1946, 1948, 1949, 1956, 1957, 1961, 1962, 1963, 1964, 1966, 1968, 1972, 1973, 1977, and 1980. Revisions adopted between 1945 and 1949 were proposed by the Committee on Special Extinguishing Systems, and those in 1956 and subsequent

35、revisions were proposed by the Committee on Carbon Dioxide. The standard was revised in 1985 and 1989. The standard was completely rewritten for the 1993 revision to more clearly state the requirements and to separate the mandatory requirements from the advisory text in an effort to make the documen

36、t more usable, enforceable, and adoptable. The standard was revised for the 1998 edition and again in 2000 in order to add a new chapter for marine systems. The 2005 edition of this standard was revised with a focus on safety. The 2008 edition of the standard was a partial revision. The 2015 edition

37、 incorporated a general update of references and other minor improvements. In addition, a new system acceptance report was added to permit compliance with the commissioning procedures of NFPA 3. The 2018 edition introduces a new requirement to conduct testing of integrated re protection and life saf

38、ety systems in accordance with NFPA 4. In addition, a new section on pipe hangers and supports and a new annex section on full discharge testing have also been added. Finally, the equivalency statement was revised to use the standard text, which species that the authority having jurisdiction is resp

39、onsible for approving an equivalent system, method, or device.CARBON DIOXIDE EXTINGUISHING SYSTEMS 12-2 2018 Edition Technical Committee on Gaseous Fire Extinguishing Systems Brent S. Ehmke, Chair Ehmke Associates, NC SE Ronald C. Adcock, Secretary Marsh Risk Consulting, AZ I Katherine Adrian, Tyco

40、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 Protection Services, LLC, OH I Laurence E. Fisher, U.S. Coa

41、st 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 HUGHES, MD SE Steven Hodges, Alion Science And Technology,

42、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. National Association of Fire Equipment Distributors Bella

43、 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. Spalding, Healey Fire Protection, Inc., MI M Rep. Fir

44、e 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., Italy M (Alt. to Giuliano Indovino) Charles O. Baurot

45、h, 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 Hoffma

46、n) Kevin Holly, Jr., UL LLC, IL RT (Alt. to Blake M. Shugarman) Daniel J. Hubert, Amerex/Janus Fire Systems, IN M (Alt. to John C. Spalding) Jonathan G. Ingram, Kidde-Fenwal, Inc., MA M (Alt. to Joseph A. Senecal) Jeffrey S. Kidd, The Hiller Companies, MA IM (Alt. to Mark E. Herzog) Justin D. Merric

47、k, S&S Sprinkler Company, LLC, AL M Voting Alternate Michael Lee Moberly, BP Upstream Engineering Center, TX U Voting Alternate Earl D. Neargarth, Fike Corporation, MO M (Alt. to Brad T. Stilwell) John G. Owens, 3M Company, MN M (Alt. to Paul E. Rivers) James M. Rucci, Harrington Group, Inc., GA SE

48、(Alt. to Jeffrey L. Harrington) Raymond A. Stacy, FM Approvals, MA I (Alt. to Robert Kasiski) Sangeetha Subramanian, Honeywell, NJ M (Alt. to Robert G. Richard) Charles Taylor, U.S. Coast Guard, DC E (Alt. to Laurence E. Fisher) Alfred J. Thornton, The Chemours Company, DE M (Alt. to Mark L. Robin)

49、Todd W. VanGorder, Silco Fire & Security, OH IM (Alt. to Norbert W. Makowka) Nonvoting Ingeborg Schlosser, VdS Schadenverhuetung, Germany I Fernando Vigara, APICI, Spain SE Barry D. Chase, NFPA Staff Liaison This list represents 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 c

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