2021 NFPA 92 Standard - Current Edition
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  • Description

    Help ensure smoke control systems will effectively manage smoke in the event of a fire with NFPA 92.

    NFPA 92, Standard for Smoke Control Systems, combines the requirements of former standards NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences, and NFPA 92B, Standard for Smoke Management Systems in Malls, Atria, and Large Spaces. It covers all types of systems used to address the impact of smoke, as well as their design, installation, and testing.

    A one-stop reference for enforcers, engineers, architects, and industry professionals concerned with or responsible for public safety.

    In the 2021 edition of NFPA 92, several chapters have been revised. The requirements for door design numbers in Chapter 4 and the requirements for the number of doors that must be open during testing of smoke containment and stairwell pressurization systems in Chapter 8 have been edited for clarity to only apply to doors that automatically open as part of the smoke control strategy. In addition, new Annex A material has been added to help guide professionals working with systems with makeup air velocities exceeding 200 ft/min (1 m/s). Finally, equations and values were updated throughout NPFA 92 to make the document fully compatible for SI (metric) users.

    The chapters in NFPA 92 address topics, including, but not limited to, the following:

    • Design fundamentals
    • Smoke management calculation procedures
    • Building equipment and controls
    • Smoke control system documentation
    • Testing

    In addition, NFPA 92 includes expansive explanatory material filled with tables, charts, and state-of-the-art calculations; techniques for predicting the rate of heat release of fires; information on computer-based models for atria and malls; guidance on additional design objectives; information on the stratification of smoke; the types of stairwell pressurization systems; information on HVAC air-handling systems; and more. (Print, Approx. 87 pp., 2021)

    Get up to date with the most current requirements by placing your order for NFPA 92, Standard for Smoke Control Systems, today.

  • Table of Contents (2021 Current Edition)

    NFPA® 92 Standard for Smoke Control Systems, 2021 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Retroactivity.
    1.4 Equivalency.
    1.5 Units and Formulas. (Reserved)
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Design Fundamentals
    4.1 Design Objectives.
    4.2 Design Basis.
    4.3 Design Approaches.
    4.4 Design Criteria.
    4.5 System Operation.
    4.6 Stairwell Pressurization Systems.
    4.7 Elevator Pressurization Systems.
    4.8 Zoned Smoke Control.
    4.9 Combination of Systems.
    4.10 Vestibules.
    4.11 Doors.
    Chapter 5 Smoke Management Calculation Procedures
    5.1 Introduction.
    5.2 Design Fire.
    5.3 Mass Consumption.
    5.4 Smoke Layer Calculations.
    5.5 Rate of Smoke Mass Production.
    5.6 Number of Exhaust Inlets.
    5.7 Volumetric Flow Rate.
    5.8 Density of Smoke.
    5.9 Varying Cross-Sectional Geometries and Complex Geometries.
    5.10 Opposed Airflow.
    5.11 Scaling Laws.
    Chapter 6 Building Equipment and Controls
    6.1 General.
    6.2 Heating, Ventilating, and Air-Conditioning (HVAC) Equipment.
    6.3 Smoke Dampers.
    6.4 Smoke Control Systems.
    6.5 Energy Management.
    6.6 Materials.
    6.7 Electric Services Installation.
    Chapter 7 Smoke Control System Documentation
    7.1 Documentation Required.
    7.2 Detailed Design Report.
    7.3 Operations and Maintenance Manual.
    Chapter 8 Testing
    8.1 General.
    8.2 Preliminary Building Inspections.
    8.3 Component System Testing.
    8.4 Acceptance Testing.
    8.5 Testing Documentation.
    8.6 Periodic Testing.
    8.7 Modifications.
    Annex A Explanatory Material
    Annex B Predicting the Rate of Heat Release of Fires
    Annex C Computer-Based Models for Atria and Malls
    Annex D Additional Design Objectives
    Annex E Stratification of Smoke
    Annex F Types of Stairwell Pressurization Systems
    Annex G HVAC Air-Handling System Types
    Annex H Fire Fighters’ Smoke Control Station (FSCS) Considerations
    Annex I Information on Testing for Leakage Between Smoke Zones
    Annex J Advisory Information on Acceptance Testing
    Annex K Example Problems Illustrating the Use of Equations
    Annex L Comparison of Equations
    Annex M Tenability
    Annex N Informational References
  • How the NFPA Handbooks Differ from Codes and Standards

    THE NFPA HANDBOOKS DIFFER FROM CODES AND STANDARDS

    Ever wonder what the difference is between an NFPA® handbook and a code or standard? We’re glad you asked.

    NFPA codes and standards both provide requirements for achieving outcomes. Handbooks take a deeper dive, providing the full text of a code or standard as well as expert commentary and features such as graphics, decision trees, testing procedures, case studies, sample forms and checklists, and other helpful aids to give a better understanding of the reasoning behind the requirements and how to apply them.

    JUST REMEMBER:

    • A code or standard is a framework—a set of rules to follow with a goal to achieve a certain result
    • A handbook is a connector—linking requirements to application by helping you understand the reasoning behind a code or standard

    The simplest way to think about it is that codes and standards list the technical requirements while handbooks explain those requirements to clarify how to apply them.

  • Prior Editions

    2018 Edition

    Design, implement, and assess smoke control systems to effectively manage smoke in the event of a fire.

    NFPA 92, Standard for Smoke Control Systems gives fire protection professionals and public safety officials an adoptable and enforceable source for all the requirements previously found in two Standards: NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences and NFPA 92B, Standard for Smoke Management Systems in Malls, Atria, and Large Spaces.

    A one-stop reference for enforcers, engineers, architects, and industry professionals concerned with or responsible for public safety.

    NFPA 92 covers all types of systems used to address the impact of smoke from fire, with mandatory provisions for the design, installation, and testing of both new and retrofitted smoke control systems in buildings—including openings and leakage through egress doors in stairways. Chapters address:

    • Fully revised and correlated definitions
    • Design fundamentals
    • Smoke management calculation procedures
    • Building equipment and controls
    • Smoke control system documentation
    • Testing

    New requirements and a new Annex in the 2018 edition help users ensure smoke control systems are up to the task:

    • Added requirements address verification of dedicated smoke control equipment through use of the weekly self-test function.
    • An Annex on tenability provides first-time guidelines for designers to assess tenable conditions in spaces protected by smoke control systems, in connected spaces, and of means of egress elements during the operation of a smoke control system.

    In addition to provisions, NFPA 92 includes comprehensive explanatory material filled with tables, charts, and state-of-the-art calculations; techniques for predicting the rate of heat release of fires; information on computer-based models for atria and malls; facts on additional design objectives; stratification of smoke; types of stairwell pressurization systems; HVAC air-handling systems; and more. (Print, 92 pp., 2018)


    2015 Edition

    The 2015 NFPA 92 is your one-stop source for advanced fire protection using smoke control systems.

    Design smoke control systems to effectively manage smoke in the event of a fire in atriums or high-rise building stairwells. NFPA 92, Standard for Smoke Control Systems gives fire protection professionals and public safety officials an adoptable and enforceable source for all the requirements previously found in two Standards: NFPA 92A, Standard for Smoke-Control Systems Utilizing Barriers and Pressure Differences and NFPA 92B, Standard for Smoke Management Systems in Malls, Atria, and Large Spaces.

    A one-stop reference for enforcers, engineers, architects, and industry professionals concerned with or responsible for public safety.

    NFPA 92 covers all types of systems used to address the impact of smoke from fire, with mandatory provisions for the design, installation, and testing of both new and retrofitted smoke control systems in buildings—including openings and leakage through egress doors in stairways. Chapters address:

    • Fully revised and correlated definitions
    • Design fundamentals
    • Smoke management calculation procedures
    • Building equipment and controls
    • Smoke control system documentation
    • Testing

    Changes in the 2015 NFPA 92 include:

    • Clarified requirements for draft curtain materials, so designers and enforcers can make informed decisions about their acceptability

    Annexes contain helpful explanatory material drawn from both NFPA 92A and NFPA 92B.

    Work with comprehensive explanatory material filled with tables, charts, and state-of-the-art calculations; techniques for predicting the rate of heat release of fires; information on computer-based models for atria and malls; facts on additional design objectives; stratification of smoke; types of stairwell pressurization systems; HVAC air-handling systems; and more. (Softbound, 80 pp., 2015)

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  • Also in NFPA 92: Standard for Smoke Control Systems