2021 NFPA 11 Standard - Current Edition
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  • Description

    If foam systems are part of your fire protection plan, the latest edition of NFPA 11 is a key resource.

    NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam, is the industry standard for the design, installation, operation, testing, and maintenance of expansion and compressed air foam systems for fire protection. The standard can be used with fixed, semi-fixed, or portable systems for both interior and exterior hazards.

    Changes to the standard impact fire protection designers and engineers, as well as installers, property managers, and system maintainers.

    In the 2021 edition of NFPA 11, two new chapters are added. Chapter 6, Low-Expansion Foam Sprinkler and Spray Systems, incorporates requirements from NFPA 16, Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems. Chapter 13, Inspection, Testing, and Maintenance, offers more robust and comprehensive ITM requirements. The updates also address synthetic fluorine free foam (SFFF) testing and research, rim fire testing of non-metallic floating roof structures, and the latest coverage of all types of foam systems. Also, as a result of research and testing, several requirements were added for compressed air foam systems. (Print, 166 pp., 2021)

    Order the latest edition of NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam, today.

  • Table of Contents (2021 Current Edition)

    NFPA® 11 Standard for Low-, Medium-, and High-Expansion Foam, 2021 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Application.
    1.4 Retroactivity.
    1.5 Equivalency.
    1.6 Units and Formulas.
    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 System Components and System Types
    4.1 General.
    4.2 Water Supplies.
    4.3 Foam Concentrates.
    4.4 Concentrate Compatibility.
    4.5 Foam Proportioning.
    4.6 Foam Concentrate Pumps.
    4.7 Piping.
    4.8 System Types.
    4.9 Operation and Control of Systems.
    Chapter 5 Low-Expansion Foam Tank, Fueling, and Spill Area Systems
    5.1 Types of Hazards.
    5.2 Outdoor Fixed-Roof (Cone) Tanks.
    5.3 Outdoor Open-Top Floating Roof Tanks.
    5.4 Outdoor Covered (Internal) Floating Roof Tanks.
    5.5 Indoor Hazards.
    5.6 Loading Racks.
    5.7 Diked Areas — Outdoor.
    5.8 Nondiked Spill Areas.
    5.9 Supplementary Protection.
    Chapter 6 Low-Expansion Foam Sprinkler and Spray Systems
    6.1 Administration.
    6.2 General System Requirements.
    6.3 Working Plans.
    6.4 System Components.
    6.5 System Design and Installation.
    6.6 Acceptance Tests.
    6.7 Inspection, Testing, and Maintenance.
    Chapter 7 Medium- and High-Expansion Systems
    7.1 General Information and Requirements.
    7.2 Use and Limitations.
    7.3 Hazards Protected.
    7.4 Types of Systems.
    7.5 Systems Protecting One or More Hazards.
    7.6 Occupant Safety and Rescue Operations.
    7.7 Operation and Control of Systems.
    7.8 Foam Concentrate.
    7.9 Air Supply.
    7.10 Foam-Generating Apparatus Location.
    7.11 Distribution Systems.
    7.12 Total Flooding Systems General Information.
    7.13 Local Application Systems.
    7.14 Foam Applications for Liquefied Natural Gas (LNG).
    7.15 Portable Foam-Generating Devices.
    Chapter 8 Compressed Air Foam Systems
    8.1 General.
    8.2 Water Supplies.
    8.3 Foam Concentrate.
    8.4 Air or Nitrogen Supply.
    8.5 Compressed Air Foam-Generating Method.
    8.6 Distribution Systems.
    8.7 Compressed Air Foam Discharge Devices.
    8.8 Operation and Control of Systems.
    8.9 System Types.
    8.10 Limitations.
    8.11 System Design.
    8.12 Installation of Piping and Fittings.
    8.13 Installation of Automatic Detection.
    8.14 CAFS Discharge Device Choice and Location.
    8.15 Discharge Density.
    8.16 Discharge Duration.
    8.17 System Flow Calculation.
    8.18 Plans and Specifications.
    8.19 Testing and Acceptance.
    8.20 Maintenance.
    Chapter 9 Specifications and Plans
    9.1 Approval of Plans.
    9.2 Specifications.
    9.3 Plans.
    Chapter 10 Installation Requirements
    10.1 Foam Concentrate Pumps.
    10.2 Flushing.
    10.3 Power Supply.
    10.4 Low-Expansion System Piping.
    10.5 Valves in Low-Expansion Systems.
    10.6 Hangers, Supports, and Protection for Pipework.
    10.7 Hose Requirements.
    10.8 Test Connections.
    Chapter 11 Low-Expansion Foam Systems for Marine Applications
    11.1 General.
    11.2 Fixed Low-Expansion Foam Systems for Machinery Spaces.
    11.3 Fixed Low-Expansion Foam Systems on Deck for Petroleum and Chemical Tankers.
    11.4 Foam Outlet Devices.
    11.5 Monitors.
    11.6 Hand Hoselines.
    11.7 Hydraulic Calculations.
    11.8 Isolation Valves.
    11.9 Hangers, Supports, and Protection of Pipework.
    11.10 Testing and Inspection.
    11.11 Foam System Concentrate Storage.
    11.12 Supply Arrangements.
    11.13 Piping Materials.
    Chapter 12 Acceptance Testing
    12.1 Inspection and Visual Examination.
    12.2 Flushing after Installation.
    12.3 Acceptance Tests.
    12.4 Pressure Tests.
    12.5 Operating Tests.
    12.6 Discharge Tests.
    12.7 Approval of Low-, Medium-, and High-Expansion Foam Systems.
    12.8 System Restoration.
    12.9 Acceptance Tests of Foam-Water Deluge and Spray Systems.
    Chapter 13 Inspection, Testing, and Maintenance
    13.1 General.
    13.2 Low-, Medium-, and High-Expansion Foam Systems.
    13.3 Foam-Water Sprinkler Systems.
    Annex A Explanatory Material
    Annex B Storage Tank Protection Summary
    Annex C Medium- and High-Expansion Foam
    Annex D Tests for Foam Systems
    Annex E Foam Health, Safety, and Environmental Issues
    Annex F Test Method for Marine Fire-Fighting Foam Concentrates Protecting Hydrocarbon Hazards
    Annex G Foam Concentrate Quality
    Annex H Synthetic Fluorine-Free Foam (SFFF) Research Testing Summary
    Annex I Rim Seal Fire Test Protocol
    Annex J Informational References
  • 2016 Edition Description

    2016 Description

     

    If foam systems are part of your fire protection plan, the latest edition of NFPA 11 is a key resource.

    Updated to reflect today's hazards as well as the systems and products in use, the 2016 edition of NFPA 11, Standard for Low-, Medium, and High-Expansion Foam is the industry standard that addresses all aspects of the design, installation, operation, testing, and maintenance of low-, medium-, and high-expansion foam systems for fire protection. Criteria apply to fixed, semi-fixed, or portable systems for both interior and exterior hazards.

    Changes impact fire protection designers and engineers as well as installers, property managers, and system maintainers.

    The 2016 edition of NFPA 11 expands and clarifies the types of pipe and fittings that can be used in foam systems. It also incorporates alternative test methods for foam proportioners and seal area-only protection for certain composite floating roofs.

    Update now for the latest coverage of all types of foam systems. (Print, 97 pp., 2016)

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