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NFPA 11: Standard for Low-, Medium-, and High-Expansion Foam, 2021
- Important Notices and Disclaimers
- Additional Important Notices and Disclaimers
- Chapter 1 Administration [Go to Page]
- 1.1 Scope.
- 1.2 Purpose.
- 1.3 Application.
- 1.4 Retroactivity.
- 1.5 Equivalency.
- 1.6 Units and Formulas.
- Chapter 2 Referenced Publications [Go to Page]
- 2.1 General.
- 2.2 NFPA Publications.
- 2.3 Other Publications.
- 2.4 References for Extracts in Mandatory Sections.
- Chapter 3 Definitions [Go to Page]
- 3.1 General.
- 3.2 NFPA Official Definitions.
- 3.3 General Definitions.
- Chapter 4 System Components and System Types [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 Personnel SafetyOccupant 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 [Go to Page]
- 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 [Go to Page]
- 9.1 Approval of Plans.
- 9.2 Specifications.
- 9.3 Plans.
- Chapter 10 Installation Requirements [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 Firefighting 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 [Go to Page]
