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1 Agenda NFPA Technical Committee on Smoke Management Systems First Draft Meeting (F14) Tuesday, March 19, :00 AM to 5:00 PM (EDT) and Wednesday, March 20, :00 a.m. to Noon Embassy Suites Baltimore at BWI Airport 1300 Concourse Drive Linthicum, MD Call to order 8:00 AM, March 19, 2013 R. Tucker 2. Self-introduction of members and guests, see page Approval of November 16-17, 2010 ROC and September 20, 2011 Pre-First Draft meeting minutes, see page Chair s report R. Tucker 5. New Process Review and Staff Liaison Report T. Vecchiarelli. See page Glossary of Terms, see page NFPA 92 Public Inputs, see page NFPA 204 Public Inputs, see page Task Groups 10. Other business. 11. Next meeting - Second Draft Meeting (F14) -Public Comment Closing Date: November 15, Final date for TC Meeting: May 2, Suggested Date and Location: 12. Adjourn by Noon on Wednesday, March 20, Page 1 of 77

2 Address List No Phone Smoke Management Systems 02/06/2013 Tracy L. Vecchiarelli Randolph W. Tucker Chair ccrd partners 808 Travis, Suite 200 Houston, TX SE 4/1/1996 Elyahu Avidor Principal 12 Antokolsky Street, Apt. #1 Tel Aviv, Israel Standards Institution of Israel RT 4/17/2002 Flora F. Chen Principal Hayward Fire Department, California 777 B Street Hayward, CA E 10/20/2010 Paul David Compton Principal Colt International, Ltd. New Lane Havant Hants, P09 2LY United Kingdom M 7/22/1999 Richard J. Davis Principal FM Global 1151 Boston-Providence Turnpike PO Box 9102 Norwood, MA Alternate: Yibing Xin I 1/1/1990 Kevin L. Derr Principal US Architect of the Capitol 3rd & D Streets, SW Ford House Office Building, Room H2-543B Washington, DC E 3/1/2011 Michael Earl Dillon Principal Dillon Consulting Engineers, Inc. 671 Quincy Avenue Long Beach, CA Alternate: Diane B. Copeland SE 1/1/1989 Robert G. Dittrich Principal Honeywell, Inc West Dundee Road Arlington Heights, IL National Electrical Manufacturers Association Alternate: Wesley Marcks M 10/23/2003 Kelly Eisenstein Principal City Of San Diego 1222 First Avenue, MS 401 San Diego, CA E 08/09/2012 Douglas H. Evans Principal Clark County Building Department 4701 West Russell Road Las Vegas, NV E 4/4/1997 Michael J. Ferreira Principal Hughes Associates, Inc Commerce Drive, Suite 817 Baltimore, MD Alternate: Steven M. Strege SE 4/3/2003 Geoffrey Harris Principal Smoke and Fire Engineering Technology Ltd. 147 Main Road Sutton-at-Hone Kent, DA4 9HW United Kingdom ISO TC on Smoke and Heat Control Systems and Components SE 7/23/2008 John E. Kampmeyer, Sr. Principal Triad Fire Protection Engineering Corporation 150 Saxer Avenue Springfield, PA National Society of Professional Engineers SE 7/17/1987 David A. Killian Principal Walt Disney Parks & Resorts MAPO Building 1401 Flower Street Glendale, CA U 8/2/2010 Page 2 of 77 1

3 Address List No Phone Smoke Management Systems 02/06/2013 Tracy L. Vecchiarelli William E. Koffel Principal Koffel Associates, Inc Centre Park Drive, Suite 200 Columbia, MD AAMA Smoke Vent Task Group M 4/15/2004 Cameron J. McCartney Principal National Research Council of Canada 1200 Montreal Road, Bldg. M-59 Ottawa, ON K1A 0R6 Canada Alternate: Gary D. Lougheed RT 10/18/2011 Anthony J. Militello Principal US Department of the Navy Naval Facilities Engineering Command 1322 Patterson Ave. SE, Suite 1000 Washington, DC E 9/30/2004 James A. Milke Principal University of Maryland Department of Fire Protection Engineering 3104 JM Patterson Building College Park, MD SE 1/1/1987 Timothy J. Orris Principal AMCA International, Inc. 30 West University Drive Arlington Heights, IL Air Movement & Control Association Alternate: Mark Allen Belke M 7/29/2005 Robert C. Sampson Principal Acralight International 465 Kennebunk Road Alfred, ME M 3/4/2009 Lawrence J. Shudak Principal UL LLC 333 Pfingsten Road Northbrook, IL Alternate: Blake M. Shugarman RT 7/20/2000 Jeffrey S. Tubbs Principal Arup 955 Massachusetts Avenue, 4th Floor Cambridge, MA Alternate: Andrew Neviackas SE 9/30/2004 Paul G. Turnbull Principal Siemens Building Technologies, Inc Deerfield Parkway Buffalo Grove, IL M 10/1/1995 Allyn J. Vaughn Principal JBA Consulting Engineers 5155 West Patrick Lane Las Vegas, NV SE 10/20/2010 Stacy N. Welch Principal Marriott International, Inc. 1 Marriott Drive, Dept Washington, DC U 1/16/1998 Peter J. Willse Principal XL Global Asset Protection Services 100 Constitution Plaza, 12th Floor Hartford, CT I 1/1/1994 Steven D. Wolin Principal Code Consultants, Inc Woodland Parkway, Suite 300 St. Louis, MO Alternate: Joseph Plati SE 4/5/2001 Sanjay Aggarwal Voting Alternate The RJA Group, Inc Oak Grove Road, Suite 300 Walnut Creek, CA Voting Alt. to RJA Rep. SE 7/12/2001 Page 3 of 77 2

4 Address List No Phone Smoke Management Systems 02/06/2013 Tracy L. Vecchiarelli Mark Allen Belke Alternate Greenheck Fan Corporation 990 South Parkview Circle, FAC 11 Mosinee, WI Air Movement & Control Association Principal: Timothy J. Orris M 10/29/2012 Diane B. Copeland Alternate Dillon Consulting Engineers, Inc. 671 Quincy Avenue Long Beach, CA Principal: Michael Earl Dillon SE 7/26/2007 Gary D. Lougheed Alternate National Research Council of Canada Institute for Research in Construction 1200 Montreal Road, Bldg. M-59 Ottawa, ON K1A 0R6 Canada Principal: Cameron J. McCartney RT 4/1/1994 Wesley Marcks Alternate Xtralis, Inc. 700 Longwater Drive Norwell, MA National Electrical Manufacturers Association Principal: Robert G. Dittrich M 3/1/2011 Andrew Neviackas Alternate Arup 955 Massachusetts Avenue, Suite 402 Cambridge, MA Principal: Jeffrey S. Tubbs SE 10/29/2012 Joseph Plati Alternate Code Consultants, Inc. 215 West 40th Street, 15th Floor New York, NY Principal: Steven D. Wolin SE 8/9/2011 Blake M. Shugarman Alternate UL LLC 333 Pfingsten Road Northbrook, IL Principal: Lawrence J. Shudak RT 1/10/2008 Steven M. Strege Alternate Hughes Associates, Inc Commerce Drive, Suite 817 Baltimore, MD Principal: Michael J. Ferreira SE 8/9/2011 Yibing Xin Alternate FM Global 1151 Boston-Providence Turnpike Norwood, MA Principal: Richard J. Davis I 9/30/2004 Christian Norgaard Madsen Nonvoting Member Techno Consultant Claude Monets alle 5 Sandvika, N-1338 Norway Alternate: Bent A. Borresen 1/1/1991 Bent A. Borresen Alt. to Nonvoting Member Techno Consult Claude Monets alle 5 Sandvika, N-1338 Norway Principal: Christian Norgaard Madsen 1/1/1991 John H. Klote Member Emeritus Cypress Ridge Terrace, #502 Leesburg, VA SE 1/1/1986 Tracy L. Vecchiarelli Staff Liaison National Fire Protection Association 1 Batterymarch Park Quincy, MA /04/2010 Page 4 of 77 3

5 November 16-17, 2010 ROC Meeting Minutes NFPA 92, 92A, 92B and 204 ROP MEETING MINUTES NFPA Technical Committee on Smoke Management Systems Tuesday-Wednesday, November 16-17, 2010 The Luxor Hotel, Las Vegas, Nevada 1. Call to Order. The meeting of the Technical Committee on Smoke Management Systems at The Luxor Hotel was called to order by Chair Randy Tucker at 9:30 AM. The meeting included attendance by members at The Luxor Hotel and via teleconference call. 2. Introduction of Committee Members and Guests. Self introductions of members and guests were completed. R. Tucker introduced and welcomed the new committee members. Those present included: TECHNICAL COMMITTEE MEMBERS PRESENT NAME Tucker, Randolph, Chair Avidor, Elyahu, Principal Compton, Paul, Principal Davis, Richard, Principal Dillon, Michael, Principal Dittrich, Robert, Principal Evans, Douglas, Principal Harris, Geoffrey, Principal Kampmeyer, John, Principal Killian, David, Principal Koffel, William, Principal Lougheed, Gary, Principal Orris, Timothy, Principal Turnbull, Paul, Principal Van Becelaere, Robert, Principal Wolin, Steven, Principal Vaughn, Allyn, Principal Copeland, Diane, Alternate Golinveaux, Tracy, Staff Liaison REPRESENTING The RJA Group, Inc. Standards Institution of Israel Colt International, Ltd. FM Global Dillon Consulting Engineers, Inc. National Electrical Manufacturers Clark County Building Department ISO TC on Smoke and Heat Control National Society of Professional Engineers Walt Disney Parks & Resorts AAMA Smoke Vent Task Group National Research Council of Canada Air Movement & Control Association Siemens Building Technologies, Inc. American Society of Mechanical Engineers Code Consultants, Inc. JBA Consulting Engineers Dillon Consulting Engineers, Inc. NFPA TECHNICAL COMMITTEE MEMBERS PRESENT VIA CONFERENCE CALL NAME Biller, Justin, Principal Milke, James, Principal REPRESENTING Roanoke County Office of Building Safety University of Maryland Page 1 Page 5 of 77

6 November 16-17, 2010 ROC Meeting Minutes Shudak, Lawrence, Principal Tubbs, Jeffrey, Principal Willse, Peter, Principal Underwriters Laboratories, Inc. Arup XL Global Asset Protection Services GUESTS PRESENT NAME Strege, Steven REPRESENTING Hughes Associates COMMITTEE MEMBERS NOT PRESENT NAME Chen, Flora, Principal Ferreira, Michael, Principal Militello, Anthony, Principal Sampson, Robert, Principal Welch, Stacy, Principal Beyler, Craig, Alternate REPRESENTING City of Hayward Hughes Associates, Inc. US Department of the Navy Acralight International Marriott International, Inc. Hughes Associates, Inc. 3. Approval of Minutes. Approval of Minutes of January 28-29, 2010 ROP meeting were approved and made final. 4. Staff Update. T. Golinveaux reviewed a presentation on the purpose and procedures of the meeting. 5. NFPA 204 ROC Preparations. The committee reviewed and acted on all public comments. NFPA 204 will return to a Fall schedule (F2015) in the next cycle. 6. NFPA 3, Commissioning Systems. J. Kampmeyer gave an update on the status of NFPA 3. It will be published as a recommended practice and the ROC is expected to be published in February. 7. NFPA 1124, Pyrotechnics Committee Draft Proposals. T. Golinveaux gave an update on the status of NFPA 1124 and the draft proposals that were reviewed by the /1124 Task Group. The Pyrotechnics Committee accepted the task group s suggestions. A letter ballot will follow. 8. NFPA 92 ROC Preparations. The committee split into task groups to review each chapter of the merged draft document. Committee comments were made to editorially revise and reorganize chapters for clarity. All public comments were reviewed and acted on. Page 2 Page 6 of 77

7 November 16-17, 2010 ROC Meeting Minutes 9. NFPA 92A and 92B. No public comments were received on these documents. 10. New Business. The FPRF has called for proposals for code based research grants. T. Golinveaux reviewed the memo from FPRF. Any suggestions for research can be forwarded to 11. Date and Location of Next Meeting. The next meeting will be in the A2014 cycle. The committee suggested a southern location. A poll will be sent out to select a specific date and location. 12. Adjournment. The meeting was adjourned at 2:00 PM November 17, Page 3 Page 7 of 77

8 National Fire Protection Association 1 Batterymarch Park, Quincy, MA Phone: Fax: NFPA Technical Committee on Smoke Management Systems FALL 2012 PRE ROP TELECONFERENCE MEETING MINUTES September 20, Call to Order. The meeting of the Technical Committee on Smoke Management Systems was called to order by Chair Randy Tucker at 11:30 AM on Tuesday, September 20, 2011 via teleconference. 2. Introduction of Teleconference Participants. Self introductions of members and guests were completed. Those present included: TECHNICAL COMMITTEE MEMBERS PRESENT NAME Randolph Tucker, Chair Sanjay Aggarwal, Alternate Richard Davis, Principal Kevin Derr, Principal Michael Dillon, Principal Robert Dittrich, Principal Douglas Evans, Principal Michael Ferreira, Principal Tracy Golinveaux, Staff Liaison John Klote, Member Emeritus Gary Lougheed, Principal Anthony Militello, Principal James Mike, Principal Lawrence Shudak, Principal Paul Turnbull, Principal Robert Van Becelaere, Principal Stacy Welch, Principal Steven Wolin, Principal REPRESENTING CCRD partners The RJA Group, Inc. FM Global US Architect of the Capitol Dillon Consulting Engineers, Inc. Honeywell, Inc. Clark County Building Department Hughes Associates, Inc. National Fire Protection Association National Research Council of Canada Institute for Research in Construction US Department of the Navy University of Maryland Department of Fire Protection Engineering Underwriters Laboratories Inc. Siemens Building Technologies, Inc. Ruskin Manufacturing Rep. American Society of Mechanical Engineers Marriott International, Inc. Code Consultants, Inc. Page 1 of 2 Page 8 of 77

9 TECHNICAL COMMITTEE MEMBERS NOT PRESENT NAME REPRESENTING Elyahu Avidor, Principal Standards Institution of Israel Flora Chen, Principal City of Hayward Paul Compton, Principal Colt International, Ltd. Geoffrey Harris, Principal Smoke and Fire Engineering Technology Ltd. Rep. ISO TC on Smoke and Heat Control Systems and Components John Kampmeyer, Principal Triad Fire Protection Engineering Corporation Rep. National Society of Professional Engineers David Killian, Principal Walt Disney Parks & Resorts William Koffel, Principal Koffel Associates, Inc. Rep. AAMA Smoke Vent Task Group Timothy Orris, Principal AMCA International, Inc. Robert Sampson, Principal Acralight International Rick Thornberry, Alternate to W. Koffel The Code Consortium, Inc. Rep. AAMA Smoke Vent Task Group Jeffrey Tubbs, Principal Arup Allyn Vaughn, Principal JBA Consulting Engineers Peter Wilse, Principal XL Global Asset Protection Services 3. Reviewed Current Revision Cycles. NFPA 92 = Annual 2014 (3 year revision) NFPA 204 = Fall 2015 (4 year revision) 4. Proposed New Revision Cycles. The committee voted to move NFPA 92 and NFPA 204 into the same cycle Fall 2014 (3 Year revision). A request was submitted to the Standards Council for approval at their October meeting. 5. Merge NFPA 92 and NFPA 204. The committee discussed the idea of merging NFPA 92 and NFPA 204 together. The Committee voted to keep the documents separate for the next cycle and will discuss this again during the ROP. 6. New Business. No new business. 7. Adjournment. The meeting was adjourned at 1:00 pm on September 20th. Minutes prepared by: Tracy Golinveaux, Staff Liaison Page 2 of 2 Page 9 of 77

10 2/12/2013 NFPA First Draft Meetings 1 Welcome TCs on Smoke Management NFPA First Draft Meetings 2 At this and all NFPA committee meetings we are concerned with your safety. If the fire alarm sounds, please proceed to an exit. March 19 March 20, 2013 Embassy Suites BWI Linthicum, MD NFPA First Draft Meetings Members, please verify/update your contact information Use of tape recorders or other means capable of reproducing verbatim transcriptions of this or any NFPA meeting is not permitted No New Material after the Public Input Stage 3 NFPA First Draft Meetings Guests All guests are required to sign in and identify their affiliations. Participation limited to those individuals who have previously requested of the chair time to address the committee on a particular subject or individuals who wish to speak to Public Input they have submitted. Guest chairs are located around the room as a courtesy. 4 NFPA First Draft Meetings 5 Members categorized in ANY interest category who has been retained to represent the interests of ANOTHER interest category (with respect to a specific issue or issues that are to be addressed by a TC/TCC) shall declare those interests to the committee and refrain from voting on any Public Input, Comment, or other matter relating to those issues. NFPA First Draft Meetings Technical Committee on Smoke Management Enforcers, 5 Members: 18% Insurance, 2 Members: 7 % Installer/Maintainer, 0 Members: 0% Labor, 0 Member: 0% Manufacturers, 6 Members: 21% Research & Testing, 3 Member: 11% Special Experts, 10 Members: 36% Users, 2 Members: 7% 6 Page 10 of 77 1

11 2/12/2013 NFPA First Draft Meetings Timeline Public Input Stage (First Draft): First Draft Meeting: today! Posting of First Draft for Balloting Date: 8/23/13 Posting of First Draft for Public Comment:9/6/13 Comment Stage (Second Draft): Public Comment Closing Date:11/15/13 Second Draft Meeting Period: Dec May 2014 Posting of Second Draft for Balloting Date: 6/13/14 Posting of Second Draft for NITMAM: 7/18/14 Tech Session Preparation: NITMAM Closing Date: 8/22/14 NITMAM /CAM Posting Date: 10/17/14 NFPA Annual Meeting: 6/22-25/2015 Standards Council Issuance: Issuance of Consent Documents: with 2015 edition date 7 Changes in Terms: NFPA First Draft Meetings New Process What s New? New Term Input Stage Public Input First Draft Meeting Committee Input Committee Statement (CS) First Revision First Draft Report First Draft 8 Old Term ROP Stage Proposal ROP Meeting Trial Balloon (or later, FR that fails ballot) Committee Statement Committee Proposal or Accepted Public Proposal ROP ROP Draft Changes in Terms: NFPA First Draft Meetings New Process What s New? 9 Flowchart See page 4 for flowchart overview 10 New Term Comment Stage Public Comment Second Draft Meeting Committee Comment Second Revision Second Draft Report Second Draft Old Term ROC Stage Public Comment ROC Meeting Comment that Failed Ballot (Second Revision that failed ballot) Committee Comment or Accepted Public Comment ROC ROC Draft NFPA First Draft Meetings New Process General Procedures o Follow Robert s Rules of Order. o Discussion requires a motion. 11 NFPA First Draft Meetings New Process 12 Motions for Ending Debate Previous Question or Call the Question o Not in order when another has the floor o Requires a second o This motion is not debatable bl and DOES NOT automatically stop debate o A 2/3 affirmative vote will immediately close debate and return to the original motion on the floor. Less then 2/3 will allow debate to continue. Page 11 of 77 2

12 2/12/2013 NFPA First Draft Meetings New Process Committee member actions: o Member addresses the chair. o Receives recognition from the chair. o Introduces the motion. o Another member seconds the motion. 13 NFPA First Draft Meetings New Process 14 Committee chair actions: o States the motion. o Calls for discussion. o Ensures all issues have been heard. o Takes the vote. o Announces the result of the vote. NFPA First Draft Meetings New Process NEW Committee Actions and Motions: o Resolve Public Input o Create a First Revision o Create a Committee Input (Trial Balloon) 15 First Draft New Process 16 Resolve a Public Input (No Change to Text): o Committee does not want to incorporate the Public Input as a revision. o Committee develops a Committee Statement (CS) to respond (resolve) a Public Input. o Committee must clearly indicate reasons for not accepting the recommendation in CS. o Does not get balloted First Draft New Process Create a First Revision 17 o Committee wants to make a change to a current section. o Committee develops a Committee Statement (CS) substantiating the change. o If the revision is associated with one or more Public Input, the Committee develops a CS to respond to each PI. o Each FR gets balloted First Draft New Process Create a Committee Input (Trial Balloon) 18 o Committee wants to receive Public Comment on a topic, but not ready to incorporate it into the draft o Need to have a Committee Statement o Does not get balloted Page 12 of 77 3

13 2/12/2013 First Draft New Process 19 Committee Statements (Substantiation): o All Public Input must have a Committee Statement o Must include a valid technical reason o No vague references to intent o Explain how the submitter s substantiation is inadequate First Draft New Process Committee Statements (Substantiation): o Should reference the First Revision if it addresses the intent of the Submitter s Public Input 20 First Draft New Process Formal voting o Voting during meeting is used to establish a sense of agreement (simple majority) o Secured by letter ballot (2/3 agreement) o Only the results of the formal ballot determine the official position of the committee on the First Draft 21 First Draft New Process 22 Ballots are on the First Revisions (FR) ONLY Public Input and Committee Input not balloted Reference materials are available: First Draft, PI, CI, CS, etc Ballot form allows you to vote: o Affirmative on all FR o Affirmative on all FR with exceptions specifically noted Ballot form provides a column for affirmative with comment o Note: This box only needs to be checked if there is an accompanying comment. Reject or abstain requires a reason. First Draft New Process Initial ballot Circulation of negatives and comments Members may change votes during circulation 23 First Draft New Process Balloting o Ballots will be an online format o Alternates are required to return ballots 24 Page 13 of 77 4

14 2/12/ Legal TC Struggles with an Issue TC needs data on a new technology or emerging issue Two opposing views on an issue with no real data Data presented is not trusted by committee Code Fund Lends a Hand TC rep and/or staff liaison submits a Code Fund Request Requests are reviewed by a Panel and chosen based on need / feasibility Research Project Carried Out Funding for project is provided by the Code Fund and/or industry sponsors Project is completed and data is available to TC Antitrust: the single most important provision- Federal law prohibits contracts, combinations, or conspiracies which unreasonably restrain trade or commerce. Section 1 of the Sherman Act Patent: Disclosures of essential patent claims should be made by the patent holder, but others may also notify NFPA if they believe that a proposed or existing NFPA standard includes an essential patent claim. Legal Doc Info Pages Activities Disapproved by the Courts Packing meetings Hiding commercial interest throwing the committees out of balance No decision-making authority to unbalanced Task Groups; include all interested parties. Hiding scientific or technical information from committees Document Information Document scope Current/Previous Edition information Issued TIAs, FIs and Errata Archived revision information Standard Council Decisions Articles and Reports Read only document Next Edition Meetings and Ballots ROP/ROC or First Draft Report and Second Draft Report NITMAM and Standard d Council Decisions Private TC info Ballot circulations, informational ballots and other committee info Submission of Public Input/Comment Technical Committee Committee name, responsibility and scope Staff liaison Committee list Private committee contact information Current committee documents in PDF format Committees seeking members and committee online application Page 14 of 77 5

15 2/12/2013 NFPA First Draft Meetings 31 Thank you for participating! Any yquestions? Page 15 of 77 6

16 Atrium Atrium Term Definition Document A large volume space created by a floor opening or series of floor openings connecting two or more stories that is covered at the top of the series of openings and is used for purposes other than an enclosed stairway; an elevator hoistway; an escalator opening; or as a utility shaft used for plumbing, electrical, air conditioning, or communications facilities. 101 (2012) A large volume space created by a floor opening or series of floor openings connecting two or more stories that is covered at the top of the series of openings and is used for purposes other than an enclosed stairway; an elevator hoistway; an escalator opening; or as a utility shaft used for plumbing, electrical, air conditioning, or communications facilities (2010) Atrium A continuous series of deck openings connecting three or more deck levels within an accommodation space that is covered at the top of the series of openings and is used for purposes other than an enclosed stairway, elevator hoistway, escalator opening, or a utility trunk for pipe, cable, or ductwork. 301 (2008) Atrium A large volume space created by a floor opening or series of floor openings connecting two or more stories that is covered at the top of the series of openings and is used for purposes other than an enclosed stairway; an elevator hoistway; an escalator opening; or as a utility shaft used for plumbing, electrical, air conditioning, or communications facilities (2012) Atrium A large volume space created by a floor opening or series of floor openings connecting two or more stories that is covered at the top of the series of openings and is used for purposes other than as an enclosed stairway, elevator hoistway, escalator opening, or utility shaft used for plumbing, electrical, air conditioning, or communication facilities. 914 (2010) Atrium A large volume space created by a floor opening or series of floor openings connecting two or more stories that is covered at the top of the series of openings and is used for purposes other than an enclosed stairway; an elevator hoistway; an escalator opening; or as a utility shaft used for plumbing, electrical, air conditioning, or communications facilities. 92 (2012) Axisymmetric Plume A plume that rises above a fire, does not come into contact with walls or other obstacles, and is not disrupted or deflected by airflow. 92 (2012) Balcony Spill Plume A smoke plume that originates from a compartment fire, flows out the doorway, flows under a balcony, and flows upward after passing the balcony edge. 92 (2012) Ceiling Jet A flow of hot smoke under the ceiling, extending radially from the point of fire plume impingement on the ceiling. 204 (2012) A flow of smoke under the ceiling, extending radially from the point of fire plume impingement on the Ceiling Jet ceiling. 92 (2012) Ceiling Jet A relatively thin layer of flowing hot gases that develops under a horizontal surface (e.g., ceiling) as a result of plume impingement and the flowing gas being forced to move horizontally. 921 (2011) Class CC1 Plastics Materials that have a burning extent of 25 mm (0.98 in.) or less when tested at a nominal thickness of mm (0.060 in.) or in the thickness intended for use. 204 (2012) Class CC2 Plastics Materials that have a burning rate of 1.06 mm/s (0.042 in./s) or less when tested at a nominal thickness of mm (0.060 in.) or in the thickness intended for use. 204 (2012) Clear (Air) Layer The zone within a building containing air that has not been contaminated by the smoke produced from a fire in the building, and that is located between the floor and the smoke layer boundary. 204 (2012) Clear Layer Interface The boundary between a smoke layer and smoke free air. 204 (2012) Communicating Space A space within a building that has an open pathway to a large volume space such that smoke from a fire either in the communicating space or in a large volume space can move from one to another without restriction. 92 (2012) Compensated System A system that adjusts for changing conditions either by modulating supply airflows or by relieving excess pressure. 92 (2012) Continuously Growing Fires Fires that, if unchecked, will continue to grow over the design interval time. 204 (2012) Covered Mall A single building enclosing a number of tenants and occupancies wherein two or more tenants have a main entrance into one or more malls. 92 (2012) Curtained Area An area of a building that has its perimeter delineated by draft curtains, full height partitions, exterior walls, or any combinations thereof. 204 (2012) Smoke control systems and components that are installed for the sole purpose of providing smoke Dedicated Smoke Control control and that upon activation of the systems operate specifically to perform the smoke control System function. 92 (2012) Design Depth of the Smoke Layer The difference between the height of the ceiling and the minimum height of the smoke layer boundary above the finished floor level that meets design objectives. 204 (2012) Page 16 of 77

17 Term Definition Document Design Fire As used in this standard, the time rate heat release history selected as the input for the calculations prescribed herein. 204 (2012) Design Interval Time The duration of time for which a design objective is to be met, measured from the time of detector activation. 204 (2012) Design Pressure Difference The desired pressure difference between the protected space and an adjacent space measured at the boundary of the protected space under a specified set of conditions with the smoke control system operating. 92 (2012) Draft Curtain A solid material, beam, girder, or similar material or construction that is attached to the underside of the ceiling and that protrudes a limited distance downward and creates a reservoir for collecting smoke. 204 (2012) Draft Curtain A solid material, beam, girder, or similar material or construction that is used to channel or contain smoke and that is attached to the underside of the ceiling and protrudes a limited distance downward. 92 (2012) Effective Ignition The time at which a t squared design fire starts. 204 (2012) End to End Verification A self testing method that provides positive confirmation that the desired result (e.g., airflow or damper position) has been achieved when a controlled device has been activated, such as during smoke control, testing, or manual override operations. 92 (2012) Fire Fighters' Smoke Control Station (FSCS) A system that provides graphical monitoring and manual overriding capability over smoke control systems and equipment at designated location(s) within the building for use by the fire department. 92 (2012) First Indication of Smoke The boundary between the transition zone and the smoke free air. 92 (2012) Fuel Array A collection and arrangement of materials that can support combustion. 204 (2012) Fuel Limited Fire A fire that has a heat release rate that is controlled by the material burning. 92 (2012) Growth Time (tg) The time interval from the time of effective ignition until the heat release rate of the fire is 1000 Btu/sec (1055 kw). 92 (2012) Heat Detector A fire detector that detects either abnormally high temperature or rate of temperature rise, or both. 1 (2012) Heat Detector A fire detector that detects either abnormally high temperature or rate of temperature rise, or both. 204 (2012) Heat Detector A fire detector that detects either abnormally high temperature or rate of temperature rise, or both. (SIG IDS) 72 (2010) Heat Detector A fire detector that detects either abnormally high temperatures or rate of temperature rise, or both. 75 (2009) An uncompartmented space, generally two or more stories in height, within which smoke from a fire Large Volume Space either in the space or in a communicating space can move and accumulate without restriction. 92 (2012) Limited Combustible (Material) Limited Combustible (Material) Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; and (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or UL 723, Standard for Test for Surface Burning Characteristics of Building Materials. 102 (2011) Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; or (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard Test Method of Surface Burning Characteristics of Building Materials. 13 (2010) Page 17 of 77

18 Term Definition Document Limited Combustible (Material) Limited Combustible (Material) Limited Combustible Material Limited Combustible Material Limited Combustible Material Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; and (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method of Surface Burning Characteristics of Building Materials; or UL 723, Standard for Test of Surface Burning Characteristics of Building Materials. 96 (2011) Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; or (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84, Standard Test Method for Surface Burning Characteristics of Building Materials, or ANSI/UL 723, Standard for Test for Surface Burning Characteristics of Building Materials. (PIP) 99 (2012) Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg), where tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and includes either of the following: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials, or ASTM E 84. Standard Test Method of Surface Burning Characteristics of Building Materials (2006) Refers to a building construction material not complying with the definition of noncombustible that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259 and includes either: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm ( in.) that has a flame spread index not greater than 50; or (2) materials, in the form and thickness used having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84 or ANSI/UL (2012) Refers to a building construction material not complying with the definition of noncombustible that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259 and includes either (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm ( in.) that has a flame spread index not greater than 50, or (2) materials, in the form and thickness used having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with NFPA 255 or ASTM E (2007) Page 18 of 77

19 Term Definition Document Limited Combustible Material As applied to a material of construction, any material that does not meet the definition of noncombustible, as stated elsewhere in this section, and that, in the form in which it is used, has a potential heat value not exceeding 3500 Btu/lb (8141 kj/kg) when tested in accordance with NFPA 259, Standard Test Method for Potential Heat of Building Materials, and also meets one of the following: (1) Materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 0.13 in. (3.2 mm) that has a flame spread index not greater than 50, when tested in accordance with NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials. (2) Materials, in the form and thickness used and not described by (1), having neither a flame spread index greater than 25 nor evidence of continued progressive combustion and having such composition that surfaces that would be exposed by cutting through the material in any plane have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with NFPA 255, Standard Method of Test of Surface Burning Characteristics of Building Materials. 52 (2010) Limited Combustible Material Limited Combustible Material Refers to a building construction material not complying with the definition of noncombustible that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259 and includes either: (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm ( in.) that has a flame spread index not greater than 50; or (2) materials, in the form and thickness used having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with ASTM E 84 or ANSI/UL (2010) Refers to a building construction material not complying with the definition of noncombustible material that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259 and includes (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of in. (3.2 mm) that has a flame spread index not greater than 50; and (2) materials, in the form and thickness used, other than as described in (1), having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion. 820 (2012) Refers to a building construction not complying with the definition of noncombustible that, in the form in which it is used, has a potential heat value not exceeding 8141 kj/kg (3500 Btu/lb), where tested in accordance with NFPA 259, and includes either (1) materials having a structural base of noncombustible material, with a surfacing not exceeding a thickness of 3.2 mm ( in.) that has a flame spread index not greater than 50; or (2) materials, in the form and thickness used, having neither a flame spread index greater than 25 nor evidence of continued progressive combustion, and of such composition that surfaces that would be exposed by cutting through the material on any plane would have neither a flame spread index greater than 25 nor evidence of continued progressive combustion, when tested in accordance with NFPA 255 or ASTM E (2010) Limited Combustible Material Limited Growth Fires Fires that are not expected to grow beyond a predictable maximum heat release rate. 204 (2012) Mechanical Smoke Exhaust System A dedicated or shared duty fan system designed and suitable for the removal of heat and smoke. 204 (2012) Multiple Injection Pressurization System A type of smoke control system that has pressurization air supplied from multiple locations. 92 (2012) Noncombustible (Material) Noncombustible Material Noncombustible Material A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C, shall be considered noncombustible materials. (HYP) 99 (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 Degrees C, shall be considered noncombustible materials. 102 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750 C, shall be considered noncombustible materials (2006) Page 19 of 77

20 Term Definition Document A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 122 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 Degrees C, shall be considered noncombustible materials. 13 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 Degrees C, shall be considered noncombustible materials. 130 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 Degrees C, shall be considered noncombustible materials. 2 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire of heat. Materials that are Noncombustible Material reported as passing ASTM E 136 shall be considered noncombustible materials. 204 (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 211 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 285 (2012) Noncombustible Material A substance that will not ignite and burn when subjected to a fire. 301 (2008) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, are considered noncombustible materials. 33 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 34 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, are considered noncombustible materials. 36 (2009) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 Degrees C, shall be considered noncombustible materials. 400 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to a fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, or other equivalent standards shall be considered noncombustible materials. 502 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 51 (2007) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, are considered noncombustible materials. 51A (2012) Page 20 of 77

21 Term Definition Document A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 52 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 520 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 Degrees C, are considered noncombustible materials. 54 (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 55 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 556 (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors, when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, shall be considered noncombustible materials. 59A (2009) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, Noncombustible Material support combustion, burn, or release flammable vapors when subjected to fire or heat. 654 (2006) In facilities handling radioactive materials, a material not capable of igniting and burning when subjected Noncombustible Material to fire conditions as defined in an approved fire test. 801 (2008) In nuclear facilities, a material that, in the form in which it is used and under the conditions anticipated, Noncombustible Material will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. 805 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 806 (2010) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 80A (2012) In wastewater treatment facilities, a material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when Noncombustible Material subjected to fire or heat. 820 (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 88A (2011) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are reported as passing ASTM E 136, Standard Test Method for Behavior of Materials in a Vertical Tube Noncombustible Material Furnace at 750 C, are considered noncombustible materials. 90A (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, support combustion, or release flammable vapors when subjected to fire or heat. Materials that are Noncombustible Material reported as passing ASTM E 136 are considered noncombustible materials. 90B (2012) A material that, in the form in which it is used and under the conditions anticipated, will not ignite, burn, Noncombustible Material support combustion, or release flammable vapors when subjected to fire or heat. 91 (2010) A material that, in the form in which it is used and under the condition anticipated, will not ignite, burn, Noncombustible Material support combustion, or release flammable vapors when subjected to fire or heat. 921 (2011) Noncombustible Material A substance that will not ignite and burn when subjected to a fire. 96 (2011) Nondedicated Smoke Control Systems A smoke control system that shares components with some other system(s), such as the building HVAC system, which changes its mode of operation to achieve the smoke control objective. 92 (2012) Page 21 of 77

22 Term Definition Document Plugholing The condition where air from below the smoke layer is pulled through the smoke layer into the smoke exhaust due to a high exhaust rate. 204 (2012) Plugholing The condition in which air from below the smoke layer is pulled through the smoke layer into the smoke exhaust due to a high exhaust rate. 92 (2012) Plume A column of smoke that rises above a fire. 92 (2012) Plume The column of hot gases, flames, and smoke rising above a fire; also called convection column, thermal updraft, or thermal column. 921 (2011) Pressurized Stairwells A type of containment smoke control system in which stair shafts are mechanically pressurized, with respect to the fire area, with outdoor air to keep smoke from contaminating them during a fire incident. 92 (2012) Separated Spaces Spaces within a building that are isolated from large volume spaces by smoke barriers. 92 (2012) Single Injection Pressurization System A type of containment smoke control system that has pressurization air supplied from only one location. 92 (2012) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass (2006) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 204 (2012) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 318 (2012) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 556 (2011) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 90A (2012) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 92 (2012) Smoke The airborne solid and liquid particulates and gases evolved when a material undergoes pyrolysis or combustion, together with the quantity of air that is entrained or otherwise mixed into the mass. 921 (2011) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. 1 (2012) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. 101 (2012) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke (2010) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. 221 (2012) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke (2012) Smoke Barrier A continuous assembly or an assembly with discontinuities created by protected openings, where such an assembly is designed and constructed to restrict the movement of smoke. 909 (2010) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. 90A (2012) Smoke Barrier A continuous membrane, or a membrane with discontinuities created by protected openings, where such membrane is designed and constructed to restrict the movement of smoke. 914 (2010) Smoke Barrier For the purposes of this standard, a continuous membrane, either vertical or horizontal, such as a wall, floor, or ceiling assembly, that is designed and constructed to restrict the movement of smoke in conjunction with a smoke control system. 92 (2012) Smoke Containment A smoke control method that uses mechanical equipment to produce pressure differences across smoke barriers. 92 (2012) Smoke Control Mode A predefined operational configuration of a system or device for the purpose of smoke control. 92 (2012) Smoke Control System An engineered system that includes all methods that can be used singly or in combination to modify smoke movement. 92 (2012) Smoke Control Zone A space within a building enclosed by smoke barriers, including the top and bottom, that is part of a zoned smoke control system. 92 (2012) Smoke Damper A device within an air distribution system to control the movement of smoke. 105 (2010) Smoke Damper A device within an air distribution system to control the movement of smoke. 221 (2012) Smoke Damper In merchant vessels, a duct closure device intended to restrict the passage of smoke that is operated automatically or manually, including manual remote. 301 (2008) Smoke Damper A device within an air distribution system to control the movement of smoke (2012) Page 22 of 77

23 Term Definition Document Smoke Damper A device within an operating (dynamic) air distribution system to control the movement of smoke. 80 (2010) Smoke Damper A device within an air distribution system to control the movement of smoke. 90A (2012) Smoke Damper A device within the air distribution system to control the movement of smoke. 92 (2012) Smoke Exhaust System A mechanical or gravity system intended to move smoke from the smoke zone to the exterior of the building, including smoke removal, purging, and venting systems, as well as the function of exhaust fans utilized to reduce the pressure in a smoke zone. 92 (2012) Smoke Layer The accumulated thickness of smoke below a physical or thermal barrier. 204 (2012) Smoke Layer The accumulated thickness of smoke below a physical or thermal barrier. 92 (2012) Smoke Layer Boundary An effective boundary centered in a transition zone between the dense portion of the smoke layer and the first indication of smoke. 204 (2012) Smoke Layer Interface The theoretical boundary between a smoke layer and the smoke free air. 92 (2012) Smoke Management A smoke control method that utilizes natural or mechanical systems to maintain a tenable environment in the means of egress from a large volume space or to control and reduce the migration of smoke between the fire area and communicating spaces 92 (2012) Smoke Refuge Area An area of the building separated from other spaces by fire resistance rated smoke barriers in which a tenable environment is maintained for the period of time that such areas might need to be occupied at the time of fire. 92 (2012) Smoke Zone The smoke control zone in which the fire is located. 92 (2012) Sprinkler Controlled Fire A fire that has a constant or decaying heat release rate due to the action of sprinkler spray. 92 (2012) Stack Effect The vertical airflow within buildings caused by the temperature created density differences between the building interior and exterior or between two interior spaces. 92 (2012) Steady Fire A fire that has a constant heat release rate. 92 (2012) An environment in which the products of combustion, including toxic gases, particulates, and heat, are Tenable Environment limited or otherwise restricted to maintain the impact on occupants to a level that is not life threatening. 105 (2010) Tenable Environment In a transportation system, an environment that permits the self rescue of occupants for a specific period of time. 130 (2010) Tenable Environment In a road tunnel, an environment that permits evacuation or rescue, or both, of occupants for a specific period of time. 502 (2011) Tenable Environment An environment in which smoke and heat are limited or otherwise restricted to maintain the impact on occupants to a level that is not life threatening. 92 (2012) Transition Zone The layer between the smoke layer interface and the first indication of smoke in which the smoke layer temperature decreases to ambient. 92 (2012) Unsteady Fire A fire that has a heat release rate that varies with respect to time. 92 (2012) Vent As used in this standard, a device or construction that, when activated, is an opening directly to the exterior at or near the roof level of a building that relies on the buoyant forces created by a fire to exhaust smoke and heat. 204 (2012) Vent A flue gas conveying system intended for use only with certain gas, liquid, or pellet fuel fired appliances that do not produce flue gas outlet temperatures higher than a value specified in the listing vent standards. 211 (2010) Vent A passageway used to convey flue gases from appliances or their vent connectors to the outdoors. 54 (2012) Vent An opening in an enclosure to relieve the developing pressure from a deflagration. 68 (2007) Vent An opening for the passage of, or dissipation of, fluids, such as gases, fumes, smoke, and the like. 921 (2011) Vent System A system used for the removal of smoke and heat from a fire that utilizes manually or automatically operated heat and smoke vents at roof level and that exhausts smoke from a reservoir bounded by exterior walls, interior walls, or draft curtains to achieve the design rate of smoke mass flow through the vents, and that includes a provision for makeup air. 204 (2012) Ventilation Limited Fire A fire where every object in the fire compartment is fully involved in fire and the heat release rate depends on the airflow through the openings to the fire compartment. 92 (2012) Window Plume A plume that flows out of an opening to a room or other compartment that is involved in a ventilation limited fire. 92 (2012) Page 23 of 77

24 Page 1 of 39 Public Input No. 27-NFPA [ New Section after 1.5 ] 1.6 Approval The design and final inspection shall be approved by the AHJ. Statement of Problem and Substantiation for Public Input This ensures that the AHJ is involved with and approving the design and acceptance of these important systems. Submitter Information Verification Submitter Full Name: Jim Muir Organization: Affilliation: Building Safety Division, Clark County Washington NFPA's Building Code Development Committee (BCDC) Submittal Date: Thu Dec 20 14:40:06 EST 2012 Copyright Assignment I, Jim Muir, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Jim Muir, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 24 of 77

25 Page 2 of 39 Public Input No. 28-NFPA [ Section No ] UL Publications. Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL ANSI/UL 555, Standard for Fire Dampers, 2006, Revised ANSI/UL 555S, Standard for Smoke Dampers, , Revised ANSI/UL 864, Standard for Control Units and Accessories for Fire Alarm Systems, 2003, Revised Statement of Problem and Substantiation for Public Input Update referenced standards to most recent edition as indicated. The revised requirements of ANSI/UL 555 and ANSI/UL 555S deal with dampers intended to be installed in air handling spaces. Revisions to ANSI/UL 864 include new and revised requirements for Supervising Station Signal Processing Equipment and have no impact to NFPA 92. Submitter Information Verification Submitter Full Name: John Bender Organization: UL LLC Submittal Date: Fri Dec 28 08:31:44 EST 2012 Copyright Assignment I, John Bender, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am John Bender, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 25 of 77

26 Page 3 of 39 Public Input No. 12-NFPA [ New Section after ] ISO Smoke control Standards ISO :2008 Smoke and heat control systems Part 1: Specification for smoke barriers ISO :2006+A1:2010 Smoke and heat control systems Part 2:Part 2: Specification for natural smoke and heat exhaust ventilators ISO :2006+A1:2010 Smoke and heat control systems Part 3: Specification for powered smoke and heat exhaust ventilators Statement of Problem and Substantiation for Public Input References to these ISO standards will make this a more complete Standard, they may need references in other parts of the Standard during Drafting Submitter Information Verification Submitter Full Name: Geoffrey Harris Organization: Smoke and Fire Engineering Tec Affilliation: ISOTC21SC11 Smoke Control Committee Submittal Date: Sat Sep 22 08:44:35 EDT 2012 Copyright Assignment I, Geoffrey Harris, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Geoffrey Harris, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 26 of 77

27 Page 4 of 39 Public Input No. 31-NFPA [ Section No ] 4.1.2* The specific objectives to be achieved over the design interval time shall include one or more of the following: Containing the smoke to the zone of fire origin Maintaining a tenable environment within exit stairwells for the time necessary to allow occupants to exit the building Maintaining a tenable environment within all exit access and smoke refuge area access paths for the time necessary to allow occupants to reach an exit or smoke refuge area Maintaining the smoke layer interface to a predetermined elevation in large volume spaces Conforming to the requirements of Section 6.5 regarding the over-ride of energy management systems Statement of Problem and Substantiation for Public Input There are a lot of moving parts in the US energy standard space that are increasing the complexity of air-handling systems. Air volume, speed, temperature, signaling and control concepts are being revised on a near-weekly basis. Designers will likely have to work a little harder to meet the competing objectives of safety and economy especially in nondedicated smoke control regimes. Getting the reference to Section 6.5 in a direct reference will emphasize the additional dimension that energy conservation objectives add to designing practical smoke management systems. Submitter Information Verification Submitter Full Name: Michael Anthony Organization: University of Michigan Affilliation: APPA.ORG - Leadership in Education (US Education Facilities Industry) Submittal Date: Mon Jan 07 10:09:49 EST 2013 Copyright Assignment I, Michael Anthony, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Michael Anthony, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 27 of 77

28 Page 5 of 39 Public Input No. 5-NFPA [ Section No ] Smoke Containment Systems. The design approach for smoke containment systems shall be one of or the pressurization of one or a combination of the following: Stairwell pressurization Stairwells Zoned pressurization areas Elevator pressurization Elevators Vestibule pressurization Vestibules Smoke refuge area pressurization areas Statement of Problem and Substantiation for Public Input Reduce repetitive language and provide requirements more concisely. Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 15:54:05 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 28 of 77

29 Page 6 of 39 Public Input No. 6-NFPA [ Sections , , , ] Sections , , , Where the system designer has determined that a higher minimum design pressure difference is necessary to achieve the smoke control system objectives, the higher minimum pressure design pressure difference shall be used The minimum allowable pressure difference shall restrict smoke leakage during building evacuation to a level that maintains a tenable environment in areas outside the smoke zone The minimum pressure difference for smoke control systems shall be established at a level that is high enough that it will not be overcome by the forces of wind, stack effect, or buoyancy of hot smoke The calculations shall take into account the design number of doors to be opened simultaneously. Statement of Problem and Substantiation for Public Input These sections try to address requirements for the minimum design pressure difference but the language is inconsistent in that it refers to the design pressure difference as higher minimum, minimum allowable, and minimum all in similar context. Sections ,.4, and.5 all address criteria the minimum design pressure difference must meet and thus should be subsections to Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 15:56:21 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 29 of 77

30 Page 7 of 39 Public Input No. 7-NFPA [ Section No ] * Pressure Maximum Pressure Differences Across Doors. The pressure differences across doors shall not cause the maximum force permitted to begin opening the door to exceed the value stipulated in NFPA 101, Life Safety Code, or local state or local codes and regulations. Statement of Problem and Substantiation for Public Input The name of this section should reflect that it addresses the maximum pressure differences across doors. This change would be more consistent with code language in which addresses the minimum pressure differences between specified spaces. Some states do not allow local codes or regulations to supersede that of the state codes or regulations, therefore state codes and regulations should be added. Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 15:58:23 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 30 of 77

31 Page 8 of 39 Public Input No. 14-NFPA [ Section No ] This text should replace the entire current Balcony Spill Plumes. Note: Equations are currently in SI format only. Equivalent imperial format equations will need to be added. (See the uploaded file for this recommendation) Balcony Spill Plumes * Where the smoke plume is a balcony spill plume and the height, zb, of the smoke layer is <50 ft (15 m), the mass rate of smoke production shall be calculated using either Equation a or b as follows: where: m = mass flow rate in plume (lb/sec) Q = heat release rate of the fire (Btu/sec) W = width of the plume as it spills under the balcony (ft) zb = height above the underside of the balcony to the smoke layer interface (ft) H = height of balcony above base of fire (ft) ( a) ( b) where: m = mass flow rate in plume (kg/sec) Q = heat release rate of the fire (kw) W = width of the plume as it spills under the balcony (m) zb = height above the underside of the balcony to the smoke layer interface (m) H = height of balcony above base of fire (m) Equations a and b shall not be used when the temperature rise above ambient (Tp - To ) is less than 4 F (2.2 C). (See ) The width of the plume, W, shall be permitted to be determined by considering the presence of any physical barriers such as draft curtains protruding below the balcony to restrict horizontal smoke migration under the balcony Where draft curtains are used, they shall be perpendicular to the opening, in order to channel smoke, and extend below the balcony ceiling a distance of at least 10 percent of the floor-to-ceiling height of the balcony * In the absence of any barriers, the equivalent width shall be calculated using Equation as follows: ( ) where: Page 31 of 77

32 Page 9 of 39 W = width of the plume (ft or m) w = width of the opening from the area of origin (ft or m) b = distance from the opening to the balcony edge (ft or m) * Where the smoke plume is a balcony spill plume and the height, z b, of the smoke layer is <50 ft (15 m) and the width of the plume determined using Equation a or b is <32.8 ft (10 m), the mass flow rate of smoke production shall be calculated using either Equation a or b. where: = mass flow entering the smoke layer at height z b (lb/sec) ( a) = convective heat output (Btu/sec) W = length of the spill (ft) zb = height of plume above the balcony edge (ft) H = height of balcony above the base of the fire (ft) where: = mass flow entering the smoke layer at height zb (kg/s) ( b) = convective heat output (kw) W = length of the spill (m) zb = height of plume above the balcony edge (m) H = height of balcony above the base of the fire (m) * Where the smoke plume is a balcony spill plume and the height, zb, of the smoke layer is 50 ft (15 m) and the width of the plume determined using Equation a or b is 32.8 ft (10 m) and 45.9 ft (14 m), the mass flow rate of smoke production shall be calculated using Equation a or b. where: = mass flow entering the smoke layer at height zb (lb/sec) ( a) = convective heat output (Btu/sec) W = length of the spill (ft) z b = height of plume above the balcony edge (ft) H = height of balcony above the base of the fire (ft) ( b) where: Page 32 of 77

33 Page 10 of 39 = mass flow entering the smoke layer at height zb (kg/sec) = convective heat output (kw) W = length of the spill (m) z b = height of plume above the balcony edge (m) H = height of balcony above the base of the fire (m) * For high smoke layer interface heights (z b 50 ft [15 m]), both a balcony spill plume fire scenario and an atrium fire scenario (axisymmetric plume using Equation b or e) with appropriate design fire sizes shall be evaluated and the higher mass flow rate used for the design of the atrium smoke management system. Additional Proposed Changes File Name Description Approved 92_L1_Rec.docx 92 PI14 Recommendation 92_L1_BS_EN_ _2011.pdf BS_EN_12101 Supporting 92_L1_Roger_Harrison_PhD_Thesis_2009_fulltext.pdf 92 Roger_Harrison Supporting nfpa92_proposal_5.5_p_compton.pdf Cover Sheet Statement of Problem and Substantiation for Public Input Since the current design calculations were developed, further research and modeling on balcony spill plumes has been carried out by R Harrison at the University of Canterbury, New Zealand. This work significantly increases the data base for development of calculations and new calculations are proposed which increase the accuracy over all previous methods. This amendment replaces the existing NFPA 92 spill plume calculations with the new ones developed by Harrison. Since the Harrison calculations use the mass flow and flowing layer depth at the spill edge a new section has been added to allow calculation of these, based on calculations from NFPA 204 and H Morgan. The Harrison calculations are currently being incorporated into the European Standard EN for its next revision. Note: Supporting material is available for review at NFPA Headquarters. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 08:49:26 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. Page 33 of 77

34 5.5.2* Balcony Spill Plumes Before a balcony spill plume can be calculated, the mass flow at the spill edge and the flowing layer depth at the spill edge must be known * The mass flow and flowing layer depth leaving the fire compartment shall be calculated by iteration. Set a value for the height of the smoke layer boundary above the floor and calculate the mass rate of smoke production according to of NFPA 204, 2012 edition. Use the calculated value for the mass rate of smoke production in Equation a or b to calculate the depth of the flowing smoke layer from the compartment. Iterate until the height of the smoke layer boundary and the depth of the flowing smoke layer equals the height of the opening. where: 0.36 m f T f d f ( b) 1/ 2 1/ C 2 d T f To W f To d f = depth of the flowing smoke layer out of the opening (m) m f = mass flow rate at opening (kg/sec) W f = width of the opening (m) T f = temperature of the smoke layer (K) T o = ambient temperature (K) C d = Flow coefficient = 1.0 if no downstand is present at the opening or 0.6 if a downstand is present Where the spill edge width equals the opening width and there is no downstand, m s = m f and d = d f Where the spill edge width equals the opening width and there is a downstand, m s = 2m f and d = 2d f Where the spill edge width is not constrained by barriers and there is no downstand, m s = m f and d = d f W/(W+b) Where the spill edge width is not constrained by barriers and there is a downstand, m s = 2m f and d = 2d f W/(W+b) Where the smoke plume is a balcony spill plume with four free edges (not contacting the walls of the large volume space) and where z<z trans, the mass rate of smoke production shall be calculated using Equation a or b as follows: ( b) m = 0.16Q c 1/3 (W 2/ d 2/3 )z b +1.34m s Page 34 of 77

35 where: m = mass flow rate in plume (kg/sec) Q c = convective heat release rate from the fire (kw) W = width of the spill edge (m) d = depth of the flowing smoke layer under the spill edge (m) z b = height of the plume above the balcony edge (m) m s = mass flow rate at the spill edge (kg/s) Where the smoke plume is a balcony spill plume with four free edges (not contacting the walls of the large volume space) and where z b z trans, the mass rate of smoke production shall be calculated for an axisymmetric plume using Equation e Above a certain height a balcony spill plume with four free edges can be considered equivalent to an axisymmetric plume. The height at which this occurs shall be calculated using Equation a or b as follows: ( b) Z trans = 3.4(W 2/ d 2/3 ) 3/2 where: z trans = transition height above the spill edge (m) W = width of the spill edge (m) d = depth of the flowing layer under the spill edge (m) Where the smoke plume is a balcony plume with two free sides and ends constrained by the walls of the large volume space, the mass rate of smoke production shall be calculated using Equation a or b as follows: ( b) m = 0.16Q c 1/3 W 2/3 z b +1.34m s where: m = mass flow rate in plume (kg/sec) Q c = convective heat release rate from the fire (kw) W = width of the spill edge (m) Page 35 of 77

36 Z b = height of the plume above the balcony edge (m) m s = mass flow rate at the spill edge (kg/s) Where the smoke plume is a balcony spill plume rising adjacent to a wall above the balcony and where 3d>W the mass rate of smoke production shall be calculated using Equation a or b Where the smoke plume is a balcony spill plume rising adjacent to a wall above the balcony and where W 13d the mass rate of smoke production shall be calculated using Equation a or b as follows: ( b) m = 0.3Q c 1/3 W 1/6 d 1/2 z b +1.34m s where: m = mass flow rate in plume (kg/sec) Q c = convective heat release rate from the fire (kw) W = width of the spill edge (m) d = depth of the flowing smoke layer under the spill edge (m) z b = height of the plume above the balcony edge (m) m s = mass flow rate at the spill edge (kg/s) Where the smoke plume is a balcony spill plume rising adjacent to a wall above the balcony and where W>13d the mass rate of smoke production shall be calculated using Equation a or b Where the smoke plume is a balcony spill plume rising adjacent to a wall above the balcony and where the ends of the plume are constrained by the walls of the large volume space, the mass rate of smoke production shall be calculated using Equation a or b as follows: ( b) m = 0.08Q c 1/3 W 2/3 z b +1.34m s where: m = mass flow rate in plume (kg/sec) Q c = convective heat release rate from the fire (kw) W = width of the spill edge (m) Z b = height of the plume above the balcony edge (m) Page 36 of 77

37 m s = mass flow rate at the spill edge (kg/s) The equations in to shall not be used when the temperature rise above ambient (T p -T o ) is less than 4 o F (2.2 o C). (See 5.5.5) (Use existing ) (Use existing ) * (Use existing ) * (Use existing ) Page 37 of 77

38 Page 11 of 39 By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is mine except where copied from NFPA 92. The formulae and figures are from Harrison. Page 38 of 77

39 Page 12 of 39 Public Input No. 17-NFPA [ Sections 6.3.1, ] Sections 6.3.1, * Smoke dampers used to protect openings in smoke barriers or used as safety -related dampers in engineered smoke control systems shall be listed and labeled in accordance with ANSI/UL 555S, Standard for Smoke Dampers, or other approved, nationally recognized standards Combination fire and smoke dampers shall be listed and labeled in accordance with ANSI/UL 555, Standard for Fire Dampers, and ANSI/UL 555S, Standard for Smoke Dampers, or other approved, nationally recognized standards. Additional Proposed Changes File Name 92_L1_BS_EN_ _2011.pdf Description Approved EN12101 Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Note: Supporting material is available for review at NFPA Headquarters. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:05:10 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is derived from text in NFPA 204. Page 39 of 77

40 Page 13 of 39 Public Input No. 19-NFPA [ Section No ] * Control systems shall be listed in accordance with ANSI/UL 864, Standard for Control Units and Accessories for Fire Alarm Systems, category UUKL, or other approved, nationally recognized standards for their intended purpose. Additional Proposed Changes File Name 92_L1_BS_EN_ _2011.pdf Description Approved EN12101 Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:09:35 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 40 of 77

41 Page 14 of 39 Public Input No. 8-NFPA [ Section No [Excluding any Sub-Sections] ] When stairwell pressurization systems are provided, they shall be activated as described in through Statement of Problem and Substantiation for Public Input Section also describes a form of activation of stairwell pressurization and should be included in Section reference. Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 16:00:03 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 41 of 77

42 Page 15 of 39 Public Input No. 25-NFPA [ Section No ] Operational Dedicated smoke control equipment shall be provided with electrical monitoring of the control components (supervision) or the operational capability of dedicated the smoke control equipment shall be verified using the weekly self-test function provided by the UUKL-listed smoke control panel mandated by Statement of Problem and Substantiation for Public Input I was unable to find a technical justification for the weekly test requirement added to the 2005 code cycle. My assumption was the technical committee added this requirement to align the requirements of NFPA 92B with that of the International Fire Code (IFC) which has had this provision since the 2000 edition. Adding the proposed language will allow a supervised smoke control system to serve as an equivalent to the weekly testing. There are operations in some facilities that would be adversely affected by the operation of the weekly test feature required by Section Allowing a supervised smoke control system to serve as an equivalent to the weekly testing will avoid the adverse conditions caused by a weekly test. The IFC Commentary states, "The system is able to verify actuations, testing, manual overrides and the presence of power downstream. This would require information reported back to the smoke control panel, which can be accomplished via the weekly test sequence or through full electronic monitoring of the system. It should be noted that electrical monitoring of the control components is not required (supervision). Such supervision verifies integrity of the conductors from a fire alarm control unit to the control system input. The weekly test is considered sufficient verification of system performance and is often termed end-to-end verification. In other words, the control system input provides the expected results." Submitter Information Verification Submitter Full Name: Waymon Jackson Organization: University of Texas at Austin Submittal Date: Wed Dec 19 08:02:44 EST 2012 Page 42 of 77

43 Page 16 of 39 Copyright Assignment I, Waymon Jackson, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Waymon Jackson, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 43 of 77

44 Page 17 of 39 Public Input No. 21-NFPA [ Section No ] * Materials used for systems providing smoke control shall conform to NFPA 90A, Standard for the Installation of Air-Conditioning and Ventilating Systems, or other approved, nationally recognized standards and other applicable NFPA documents. Additional Proposed Changes File Name 92_L1_BS_EN_ _2011.pdf Description Approved EN12101 Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:12:03 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is derived from text in NFPA 204. Page 44 of 77

45 Page 18 of 39 Public Input No. 9-NFPA [ Section No ] The design report shall include the following elements, if applicable: System purpose System design objectives Design approach Design assumptions (building height, ambient conditions, reliance on other fire protection systems, leakage, etc.) Location of smoke zone(s) Design pressure differences Building use limitations that arise out of the system design Design calculations Fan and duct specifications Damper specifications Detailed inlet or exhaust inlets site information Detailed method of activation Smoke control system operation logic System commissioning procedures System periodic testing procedures Statement of Problem and Substantiation for Public Input Proper maintenance of the smoke control system during the life of the building is essential to ensure the system will perform its intended function under fire conditions. Since development of the design report, including commissioning procedures of the involved smoke control system, requires that all parties including the designers, owners, and authorities having jurisdiction reach a consensus agreement on testing procedures and have a clear understanding of the system objectives, this is the best time for the designer to develop periodic testing procedures to be used to maintain the system over the life of the building, rather than relying on the owner alone to develop them. Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 16:00:54 EDT 2012 Copyright Assignment Page 45 of 77

46 Page 19 of 39 I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 46 of 77

47 Page 20 of 39 Public Input No. 33-NFPA [ Section No ] 8.4.1* General. Acceptance testing shall demonstrate that the final integrated system installation complies with the specific design and is functioning properly according to criterion in NFPA 4 - Standard for Integrated Fire Protection and Life Safety System Testing. Statement of Problem and Substantiation for Public Input NFPA 4 is a relatively new document that will help our industry to perform commissioning of smoke management systems in the first cost of the building construction budget. This is likely to reduce long term inspection, testing and maintenance cost. Submitter Information Verification Submitter Full Name: Michael Anthony Organization: University of Michigan Affilliation: APPA.ORG - Leadership in Education (US Education Facilities Industry) Submittal Date: Mon Jan 07 10:12:54 EST 2013 Copyright Assignment I, Michael Anthony, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Michael Anthony, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 47 of 77

48 Page 21 of 39 Public Input No. 26-NFPA [ New Section after 8.6 ] Inspection Records Inspection records shall be submitted to the AHJ. Statement of Problem and Substantiation for Public Input This ensures that the AHJ is notified and provided with periodic inspection documents. Submitter Information Verification Submitter Full Name: Jim Muir Organization: Building Safety Division Affilliation: NFPA's Building Code Development Committee (BCDC) Submittal Date: Thu Dec 20 14:36:09 EST 2012 Copyright Assignment I, Jim Muir, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Jim Muir, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 48 of 77

49 Page 22 of 39 Public Input No. 10-NFPA [ Section No ] 8.6.1* Proper maintenance of the system shall, as a minimum, include the periodic testing of all equipment, such as initiating devices, fans, dampers, controls, doors, and windows Dedicated systems shall be tested at least semiannually Non-dedicated systems shall be tested at least annually The Design Report documents shall include periodic testing procedures and acceptance (e.g., pass/fail) criteria. Statement of Problem and Substantiation for Public Input The section on the frequency of testing is not clear. Systems should be either dedicated or non-dedicated. Relocation of the testing frequency requirements in one section should provide more clarity. Addition of subsection to ensure the owner and authority having jurisdiction have a clear and defined procedure and criteria for required periodic testing of the smoke control system over the life of the building. Proper maintenance of the smoke control system during the life of the building is essential to ensure the system will perform its intended function under fire conditions. Since development of the design report, including commissioning procedures of the involved smoke control system, requires that all parties including the designers, owners, and authorities having jurisdiction reach a consensus agreement on testing procedures and have a clear understanding of the system objectives, the design report should include periodic testing and acceptance procedures, rather than relying on the owner alone to develop them. Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 16:02:49 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 49 of 77

50 Page 23 of 39 Public Input No. 2-NFPA [ Section No ] The results of the tests shall be documented in the operations and maintenance log and made available for inspection Testing shall be conducted and a final report submitted within 90 days after the completion of testing Testing and auditing of records shall be performed in order to issue a certificate of compliance * Testing shall include the verification that devices are properly annunciated at the control panel, verification that system function by placing zones into alarm and checking the input and output signals and device functionality against the information contained within the approved smoke control report. A All testing should be coordinated with the companies holding the maintenance contracts for the fire alarm system, fire sprinkler system, HVAC, kitchen hood, etc. Auditing of records should include verification of the location and integrity of smoke zone boundaries to approved documents, review of maintenance records of devices and equipment making up the smoke control system (initiating devices, fans, dampers, controls, doors and windows if self or automatic closing), verify that the appropriate maintenance requirements are being met by the facility, and previous testing done in conjunction with fire alarm system testing. Documentation should also be on forms submitted as a part of the preliminary smoke control report The AHJ shall be notified immediately in writing, whenever it is discovered that any component or system is inoperable and is creating a life threatening situation * Upon discovery of any non-complying aspect of the smoke control system that cannot be corrected immediately, the testing individual must notify the owner and AHJ prior to them concluding the testing and leaving for the day. All non-complying aspects must be corrected to ensure that the smoke control system is properly operating as designed. Statement of Problem and Substantiation for Public Input Inspection and periodic testing of existing smoke control systems Mechanical smoke-control systems, such as those in high-rise buildings, buildings containing atria, covered mall buildings and mechanical ventilation systems utilized in smoke proof enclosures and for smoke-removal systems utilized in high-piled combustible storage occupancies, and must be maintained in an operable condition at all times. The minimum level of life safety and property protection as originally designed into the building must be maintained by verifying through inspections and testing that the existing smoke control system continue to operate in accordance with the approved design. To assist in the standardization for these procedures we have proposed the following to assist in describing the testing of existing smoke control systems and to provide a guideline for qualified inspectors to utilize when testing these systems. Submitter Information Verification Page 50 of 77

51 Page 24 of 39 Submitter Full Name: Kelly Nicolello Organization: Western Regional Fire Code Dev Submittal Date: Thu Aug 16 11:59:52 EDT 2012 Copyright Assignment I, Kelly Nicolello, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Kelly Nicolello, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 51 of 77

52 Page 25 of 39 Public Input No. 11-NFPA [ Sections 8.6.7, ] Sections 8.6.7, Dedicated systems shall be tested at least semiannually Nondedicated systems shall be tested at least annually. Statement of Problem and Substantiation for Public Input The section on the frequency of testing is not clear. Systems should be either dedicated or non-dedicated. Relocation of the testing frequency requirements in one section should provide more clarity. Addition of subsection to ensure the owner and authority having jurisdiction have a clear and defined procedure and criteria for required periodic testing of the smoke control system over the life of the building. Proper maintenance of the smoke control system during the life of the building is essential to ensure the system will perform its intended function under fire conditions. Since development of the design report, including commissioning procedures of the involved smoke control system, requires that all parties including the designers, owners, and authorities having jurisdiction reach a consensus agreement on testing procedures and have a clear understanding of the system objectives, the design report should include periodic testing and acceptance procedures, rather than relying on the owner alone to develop them. Related Public Inputs for This Document Related Input Public Input No. 10-NFPA [Section No ] Relationship Submitter Information Verification Submitter Full Name: Bill Galloway Organization: Southern Regional Fire Code De Submittal Date: Tue Aug 28 16:04:57 EDT 2012 Copyright Assignment I, Bill Galloway, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Bill Galloway, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 52 of 77

53 Page 26 of 39 Public Input No. 3-NFPA [ New Section after ] Certificate of Compliance Tag At completion of the acceptance test and periodic testing, a tag or other marking shall be attached to the smoke control panel indicating compliance and operability of the system. Statement of Problem and Substantiation for Public Input Inspection and periodic testing of existing smoke control systems Mechanical smoke-control systems, such as those in high-rise buildings, buildings containing atria, covered mall buildings and mechanical ventilation systems utilized in smoke proof enclosures and for smoke-removal systems utilized in high-piled combustible storage occupancies, and must be maintained in an operable condition at all times. The minimum level of life safety and property protection as originally designed into the building must be maintained by verifying through inspections and testing that the existing smoke control system continue to operate in accordance with the approved design. To assist in the standardization for these procedures we have proposed the following to assist in describing the testing of existing smoke control systems and to provide a guideline for qualified inspectors to utilize when testing these systems. Submitter Information Verification Submitter Full Name: Kelly Nicolello Organization: Western Regional Fire Code Dev Submittal Date: Thu Aug 16 12:01:44 EDT 2012 Copyright Assignment I, Kelly Nicolello, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Kelly Nicolello, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 53 of 77

54 Page 27 of 39 Public Input No. 32-NFPA [ New Section after ] Where the conditions of supervision and maintenance are acceptable to the Authority Having Jurisdiction, testing intervals may be relaxed according to occupancy class, hazard of contents. and/or the complexity of the smoke management system. Statement of Problem and Substantiation for Public Input In order to make this document work for our industry, it needs to contain language that recognizes the safety advantages of an on-site staff on a single contiguous piece of property with dozens of buildings in close proximity (i.e a campus or a research hospital complex). In many cases there is a central constantly attended location where fire alarm signals are managed by a professionally trained, on-site, 7/24/365 maintenance staff and it has occupants that are relatively familiar with the building. Fixed interval testing may not be as cost effective as being able to scale grim testing resources according to the risk profile of different buildings or the campus as a whole. Submitter Information Verification Submitter Full Name: Michael Anthony Organization: University of Michigan Affilliation: APPA.ORG - Leadership in Education (US Education Facilities Industry) Submittal Date: Mon Jan 07 10:11:39 EST 2013 Copyright Assignment I, Michael Anthony, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Michael Anthony, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 54 of 77

55 Page 28 of 39 Public Input No. 16-NFPA [ New Section after A ] A The equations given in through to are based on research carried out by Harrison (89). A wide range of possible balcony spill plume scenarios were represented in 1/10 scale modeling and the results were extended using CFD. The number of scenarios far exceeded any previous research. The results were compared against existing correlations published in NFPA 92B, CIBSE Guide E, BR368, etc. Each existing correlation provided good results over a limited range of scenarios. Harrison proposed new correlations which are valid over a wider range. Scenarios with balcony spill plumes involve smoke rising above a fire, reaching a ceiling, balcony or other significant horizontal projection, then travelling horizontally toward the edge of the balcony. Characteristics of the resulting balcony spill plume depend on characteristics of the fire, width of the spill plume and height of the ceiling above the fire. In addition the path of the horizontal travel from the plume centerline to the balcony edge is significant. Agreement of the predictions from the equations with those from the experiments is presented in Figures A.5.5.2a to A.5.5.2?. [Note: Figures to follow] A Smoke flowing under a ceiling will have a minimum depth dependent upon the geometry, the mass flow rate and the temperature of the smoke. Work by Morgan (88) has shown that this depth can be calculated for unidirectional flow, for example through an opening or under a balcony. Equations a and b are the equation presented by Morgan. Knowledge of this depth, at the spill edge, is needed for calculation of the balcony spill plume using the method proposed by Harrison (89), which forms the basis for New references: 88. Morgan H P. The horizontal flow of buoyant gases toward an opening. Fire Safety Journal, 11, , Harrison R. Entrainment of air into thermal spill plumes. PhD thesis, University of Canterbury, NZ, Statement of Problem and Substantiation for Public Input Since the current design calculations were developed, further research and modeling on balcony spill plumes has been carried out by R Harrison at the University of Canterbury, New Zealand. This work significantly increases the data base for development of calculations and new calculations are proposed which increase the accuracy over all previous methods. This amendment replaces the existing NFPA 92 spill plume calculations with the new ones developed by Harrison. Since the Harrison calculations use the mass flow and flowing layer depth at the spill edge a new section has been added to allow calculation of these, based on calculations from NFPA 204 and H Morgan. The Harrison calculations are currently being incorporated into the European Standard EN for its next revision. Note: Supporting material is available for review at NFPA Headquarters. Submitter Information Verification Page 55 of 77

56 Page 29 of 39 Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:02:23 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is mine except where copied from NFPA 92. The formulae and figures are from Harrison. Page 56 of 77

57 Page 30 of 39 Public Input No. 15-NFPA [ Sections A , A , A , A , A ] Sections A , A , A , A , A A Equation is based on Law's interpretation [22] of small-scale experiments by Morgan and Marshall [35]. Scenarios with balcony spill plumes involve smoke rising above a fire, reaching a ceiling, balcony, or other significant horizontal projection, then traveling horizontally toward the edge of the balcony. Characteristics of the resulting balcony spill plume depend on characteristics of the fire, width of the spill plume, and height of the ceiling above the fire. In addition, the path of horizontal travel from the plume centerline to the balcony edge is significant. Agreement of the predictions from Equation with those from small-scale experimental efforts is presented in Figure A Whereas the agreement is quite good, the results are from only two small-scale experimental programs. The results of full-scale tests conducted as part of a joint research project involving the American Society for Heating, Refrigerating and Air-Conditioning Engineers and the National Research Council (Lougheed [27]; Lougheed [28]) indicate that the balcony spill plume equation developed by Law provides a reasonable but conservative estimate for smoke layer interface heights up to 50 ft (15 m). The full-scale tests as well as research conducted at Building Research Establishment (BRE) using scale physical models (Marshall and Harrison [30]) indicate that higher smoke production rates than predicted by spill plume equations can be produced in a small atrium of 10 m 10 m 19 m in height. The additional smoke production has been attributed to the recirculation of the ceiling jet produced by the spill plume in the atrium space resulting in additional air entrainment. This additional smoke production is more likely to occur for scenarios with narrow openings (7.5 m) and with draft curtains. For a small atrium, it is recommended that the final design be supported by a modeling study. Figure A Agreement Between Predictions and Experimental Values (Morgan and Marshall [35]; Mulholland [37]). Page 57 of 77

58 Page 31 of 39 A Visual observations of the width of the balcony spill plume at the balcony edge were made in a set of small-scale experiments by Morgan and Marshall [35] and analyzed by Law [22]. In those experiments, the fire was in a communicating space immediately adjacent to the atrium. An equivalent width can be defined by equating the entrainment from an unconfined balcony spill plume to that from a confined balcony spill plume. The results of full-scale tests conducted as part of a joint research project involving the American Society for Heating, Refrigerating and Air-Conditioning Engineers and the National Research Council (Lougheed [27]; Lougheed [28]) indicate that the equation for the width of the unconfined spill plume is valid for spill plumes from compartments with opening widths of 16 ft (5 m) to 46 ft (14 m). 6 A Equations a and b are based on a parametric study using CFD model simulations (Lougheed [28]; McCartney, Lougheed, and Weckman [31]) to determine the best fit for the parameters to determine smoke production rates in a high atrium. The virtual origin term for the equation was determined such that Equation a or b provides the same estimate for the mass flow rate for a smoke layer interface height at 50 ft (15 m) as Equation a or b. For narrow spill plumes, the initially rectangular plume will evolve to an axisymmetric plume as it rises, resulting in a higher smoke production rate than that predicted by Equation a or b. It is recommended that the final design be supported by a CFD modeling study. A A Equations a and b are similar to the algebraic equation used to determine smoke production by a line plume originating in the large-volume space (CIBSE [3]). The equations are also comparable to the algebraic equations determined for a spill plume based on an infinite line plume approximation (Morgan et al. [34]). The virtual origin term for the equations was determined such that Equation a or b provides the same estimate for the mass flow rate for a smoke layer interface height at 50 ft (15 m) as Equation a or b. It is recommended that the final design be supported by a CFD modeling study. For 14 For high smoke layer interface heights, a fire in an atrium can result in a higher smoke production rate than a balcony spill plume. Figure A Page 58 of 77

59 Page 32 of compares the mass flow rates in the spill plume estimated using Figure Equation 61 (Equation a or b), Figure Equation 63 (Equation a or b), and Figure Equation 64 (Equation a or b) for a design fire with a convective heat release rate of 1000 kw and a balcony height of 16 ft (5 m) and spill widths of 16 ft (5 m) and 33 ft (10 m). The estimated mass flow rates are the same at the 50 ft (15 m) height above the balcony. Also, Figure Equations 63 and 64 provide comparable results for the case with the 33 ft (10 m) spill width. Figure A Estimated 14 Estimated Mass Flow Rates. Additional Proposed Changes File Name 92_L1_BS_EN_ _2011.pdf nfpa92_proposal_5.5_p_compton.pdf Description Approved EN12101 Cover Sheet Statement of Problem and Substantiation for Public Input Since the current design calculations were developed, further research and modeling on balcony spill plumes has been carried out by R Harrison at the University of Canterbury, New Zealand. This work significantly increases the data base for development of calculations and new calculations are proposed which increase the accuracy over all previous methods. This amendment replaces the existing NFPA 92 spill plume calculations with the new ones developed by Harrison. Since the Harrison calculations use the mass flow and flowing layer depth at the spill edge a new section has been added to allow calculation of these, based on calculations from NFPA 204 and H Morgan. The Harrison calculations are currently being incorporated into the European Standard EN for its next revision. Note: Supporting material is available for review at NFPA Headquarters. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 08:59:56 EST 2012 Copyright Assignment Page 59 of 77

60 Page 33 of 39 I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is mine except where copied from NFPA 92. The formulae and figures are from Harrison. Page 60 of 77

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65 Page 34 of 39 Public Input No. 18-NFPA [ New Section after A ] A There are ISO standards for smoke control products (ISO various parts). The ISO standards are technically equivalent to European (EN) standards for these products (EN various parts). Products that carry the CE mark, which is mandatory for sale of these products within the European Union, are subject to independent testing and ongoing factory production control by Notified Bodies appointed by national governments. Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Note: Supporting material is available for review at NFPA Headquarters. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:07:59 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is derived from text in NFPA 204. Page 65 of 77

66 Page 35 of 39 Public Input No. 20-NFPA [ New Section after A.6.4 ] A There are ISO standards for smoke control products (ISO various parts). The ISO standards are technically equivalent to European (EN) standards for these products (EN various parts). Products that carry the CE mark, which is mandatory for sale of these products within the European Union, are subject to independent testing and ongoing factory production control by Notified Bodies appointed by national governments. Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:10:50 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 66 of 77

67 Page 36 of 39 Public Input No. 22-NFPA [ New Section after A ] A There are ISO standards for smoke control products (ISO various parts). The ISO standards are technically equivalent to European (EN) standards for these products (EN various parts). Products that carry the CE mark, which is mandatory for sale of these products within the European Union, are subject to independent testing and ongoing factory production control by Notified Bodies appointed by national governments. Statement of Problem and Substantiation for Public Input This wording and statement are equivalent to those already added to NFPA 204 for natural ventilators. Bearing in mind that NFPA standards are used throughout the world it is reasonable that listings/certificates valid in those countries should be accepted by this design standard. Submitter Information Verification Submitter Full Name: Paul Compton Organization: Colt International, Ltd. Submittal Date: Tue Dec 11 09:13:25 EST 2012 Copyright Assignment I, Paul Compton, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Paul Compton, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) The text is derived from text in NFPA 204. Page 67 of 77

68 Page 37 of 39 Public Input No. 4-NFPA [ New Section after A ] A Approved persons who are qualified and knowledgeable in how to conduct periodic testing should have credentials and be knowledgeable on the process and procedures on how to re-certify and test any smoke control system. These individuals may be either a professional engineer (Fire Protection, Mechanical or Electrical Engineer) with detailed experience in engineered smoke control system or an individual registered with either the Association of Air Balance Council (AABC),or the National Environmental Balancing Bureau (NEBB). Qualified individuals should provide a copy of their current engineer registration or provide a copy of their registration as a member in good standing with either of the AABC or NEBB associations, and a detailed explanation of experience with engineered smoke control systems. Statement of Problem and Substantiation for Public Input Inspection and periodic testing of existing smoke control systems Mechanical smoke-control systems, such as those in high-rise buildings, buildings containing atria, covered mall buildings and mechanical ventilation systems utilized in smoke proof enclosures and for smoke-removal systems utilized in high-piled combustible storage occupancies, and must be maintained in an operable condition at all times. The minimum level of life safety and property protection as originally designed into the building must be maintained by verifying through inspections and testing that the existing smoke control system continue to operate in accordance with the approved design. To assist in the standardization for these procedures we have proposed the following to assist in describing the testing of existing smoke control systems and to provide a guideline for qualified inspectors to utilize when testing these systems. Submitter Information Verification Submitter Full Name: Kelly Nicolello Organization: Western Regional Fire Code Dev Submittal Date: Thu Aug 16 12:03:37 EDT 2012 Copyright Assignment I, Kelly Nicolello, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Kelly Nicolello, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Page 68 of 77

69 Page 38 of 39 Public Input No. 34-NFPA [ New Section after D.1.2 ] Insert NFPA 130 Section B (Heat Effects) as new NFPA 92 Section D Insert NFPA 130 Section B (Carbon Monoxide) as new NFPA 92 Section D Insert NFPA 130 Section B (Smoke Obscuration) as new NFPA 92 Section D See Uploaded file for text. Additional Proposed Changes File Name Description Approved 92_Ferreira_1-4-13_.pdf Text from NFPA 130 for new Annex D Statement of Problem and Substantiation for Public Input NFPA 92 (2012) Section specifically recognizes maintaining a tenable environment as an acceptable design objective for smoke control systems. Tenability systems are widely used in atrium applications, and substantiated by CFD analysis. Use of tenability is perhaps more widely used currently than prescribing a defined layer height. NFPA 92 currently avoids prescription of tenability thresholds. NFPA 130 proposes tenability thresholds in its appendix material that are consistent with those widely adopted by fire protection engineers. The proposed change to NFPA 92 includes the language from NFPA 130 as new appendix material to provide guidance to designers as to the limiting tenability thresholds to be used in design. Submitter Information Verification Submitter Full Name: Michael Ferreira Organization: Hughes Associates, Inc. Submittal Date: Tue Jan 08 08:20:43 EST 2013 Copyright Assignment I, Michael Ferreira, hereby irrevocably grant and assign to the National Fire Protection Association (NFPA) all and full rights in copyright in this Public Input (including both the Proposed Change and the Statement of Problem and Substantiation). I understand and intend that I acquire no rights, including rights as a joint author, in any publication of the NFPA in which this Public Input in this or another similar or derivative form is used. Except to the extent that I may lack authority to make an assignment of content identified above, I hereby warrant that I am the author of this Public Input and that I have full power and authority to enter into this copyright assignment. By checking this box I affirm that I am Michael Ferreira, and I agree to be legally bound by the above Copyright Assignment and the terms and conditions contained therein. I understand and intend that, by checking this box, I am creating an electronic signature that will, upon my submission of this form, have the same legal force and effect as a handwritten signature Origin (from sources other than the submitter) NFPA 130 Committee Page 69 of 77

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