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NFPA 13: Standard for the Installation of Sprinkler Systems - 20241014, 2022
- 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 Symbols.
- 1.7 New Technology.
- 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 General Requirements [Go to Page]
- 4.1 Level of Protection.
- 4.2 Owner’s Certificate.
- 4.3 Classification of Hazard.
- 4.4 System Protection Area Limitations.
- 4.5 Water Supply Information.
- 4.6 Additives.
- 4.7 Air, Nitrogen, or Other Approved Gas.
- 4.8 Support of Nonsprinkler System Components.
- 4.9 Noncombustible Materials and Limited-Combustible Materials.
- Chapter 5 Water Supplies [Go to Page]
- 5.1 General.
- 5.2 Types.
- Chapter 6 Installation Underground Piping [Go to Page]
- 6.1 Piping.
- 6.2 Fittings.
- 6.3 Connection of Pipe, Fittings, and Appurtenances. [24:10.3]
- 6.4 Protection of Private Fire Service Mains. [24:10.4]
- 6.5 Grounding and Bonding.
- 6.6 Restraint.
- 6.7 Steep Grades.
- 6.8 Installation Requirements.
- 6.9 Backfilling.
- 6.10 Testing and Acceptance.
- Chapter 7 Requirements for System Components and Hardware [Go to Page]
- 7.1 General.
- 7.2 Sprinklers.
- 7.3 Aboveground Pipe and Tube.
- 7.4 Fittings.
- 7.5 Joining of Pipe and Fittings.
- 7.6 Valves.
- 7.7 Waterflow Alarm Devices.
- 7.8 Additives and Coatings.
- 7.9 Automated Inspection and Testing Devices and Equipment.
- Chapter 8 System Types and Requirements [Go to Page]
- 8.1 Wet Pipe Systems.
- 8.2 Dry Pipe Systems.
- 8.3 Preaction Systems and Deluge Systems.
- 8.4 Combined Dry Pipe and Preaction Systems for Piers, Terminals, and Wharves.
- 8.5 Multi-Cycle Systems.
- 8.6 Antifreeze Systems.
- 8.7 Outside Sprinklers for Protection Against Exposure Fires (Exposure Protection Sprinkler Systems).
- 8.8 Refrigerated Spaces.
- 8.9 Commercial-Type Cooking Equipment and Ventilation.
- 8.10 Pilot Line Detectors.
- Chapter 9 Sprinkler Location Requirements [Go to Page]
- 9.1 Basic Requirements.
- 9.2 Allowable Sprinkler Omission Locations.
- 9.3 Special Situations.
- 9.4 Use of Sprinklers.
- 9.5 Position, Location, Spacing, and Use of Sprinklers.
- Chapter 10 Installation Requirements for Standard Pendent, Upright, and Sidewall Spray Sprinklers [Go to Page]
- 10.1 General.
- 10.2 Standard Pendent and Upright Spray Sprinklers.
- 10.3 Sidewall Standard Spray Sprinklers.
- Chapter 11 Installation Requirements for Extended Coverage Upright, Pendent, Sidewall Spray Sprinkler [Go to Page]
- 11.1 General.
- 11.2 Extended Coverage Upright and Pendent Spray Sprinklers.
- 11.3 Extended Coverage Sidewall Spray Sprinklers.
- Chapter 12 Installation Requirements for Residential Sprinklers [Go to Page]
- 12.1 General.
- Chapter 13 Installation Requirements for CMSA Sprinklers [Go to Page]
- 13.1 General.
- 13.2 CMSA Sprinklers.
- Chapter 14 Installation Requirements for Early Suppression Fast-Response Sprinklers [Go to Page]
- 14.1 General.
- 14.2 Early Suppression Fast-Response Sprinklers.
- Chapter 15 Installation Requirements for Special Sprinklers [Go to Page]
- 15.1 Open Sprinklers.
- 15.2 Special Sprinklers.
- 15.3 Dry Sprinklers.
- 15.4 Old-Style Sprinklers.
- 15.5 Attic Sprinklers.
- 15.6 Electrically Operated Sprinklers.
- Chapter 16 Installation of Piping, Valves, and Appurtenances [Go to Page]
- 16.1 Basic Requirements.
- 16.2 Sprinkler Installation.
- 16.3 Piping Installation.
- 16.4 Protection of Piping.
- 16.5 Protection of Risers Subject to Mechanical Damage.
- 16.6 Provision for Flushing Systems.
- 16.7 Air Venting.
- 16.8 Fitting Installation.
- 16.9 Valves.
- 16.10 Drainage.
- 16.11 System Attachments.
- 16.12 Fire Department Connections.
- 16.13 Gauges.
- 16.14 System Connections.
- 16.15 Hose Connections.
- 16.16 Electrical Bonding and Grounding.
- 16.17 Signs.
- Chapter 17 Installation Requirements for Hanging and Support of System Piping [Go to Page]
- 17.1 General.
- 17.2 Hanger Components.
- 17.3 Trapeze Hangers.
- 17.4 Installation of Pipe Hangers.
- 17.5 Pipe Stands.
- Chapter 18 Installation Requirements for Seismic Protection [Go to Page]
- 18.1 Protection of Piping Against Damage Where Subject to Earthquakes.
- 18.2 Flexible Couplings.
- 18.3 Seismic Separation Assembly.
- 18.4 Clearance.
- 18.5 Sway Bracing.
- 18.6 Restraint of Branch Lines.
- 18.7 Hangers and Fasteners Subject to Earthquakes.
- 18.8 Pipe Stands Subject to Earthquakes.
- Chapter 19 Design Approaches [Go to Page]
- 19.1 General Design Approaches.
- 19.2 Occupancy Hazard Fire Control Approach for Spray Sprinklers.
- 19.3 Special Design Approaches.
- 19.4 Deluge Systems.
- Chapter 20 General Requirements for Storage [Go to Page]
- 20.1 General.
- 20.2 Protection of Storage.
- 20.3 Classification of Commodities.
- 20.4 Commodity Classes.
- 20.5 Storage Arrangement.
- 20.6 Protection Criteria for Roll Paper Storage.
- 20.7 Plastic Motor Vehicle Components.
- 20.8 High Volume Low Speed (HVLS) Fans.
- 20.9 Building Construction and Storage: Heights and Clearance.
- 20.10 Unsprinklered Combustible Concealed Spaces.
- 20.11 Room Design Method.
- 20.12 High-Expansion Foam Systems.
- 20.13 Adjacent Hazards or Design Methods.
- 20.14 Hose Connections.
- 20.15 Hose Stream Allowance and Water Supply Duration.
- 20.16 Discharge Considerations: General.
- 20.17 Protection of Idle Pallets.
- 20.18 Column Protection: Rack Storage and Rubber Tire Storage.
- 20.19 Protection of Racks with Solid Shelves.
- Chapter 21 Protection of High Piled Storage Using Control Mode Density Area (CMDA) Sprinklers [Go to Page]
- 21.1 General.
- 21.2 Control Mode Density/Area Sprinkler Protection Criteria for Palletized, Solid-Piled, Bin Box, Shelf, or Back-to-Back Shelf Storage of Class I Through Class IV Commodities.
- 21.3 Control Mode Density/Area Sprinkler Protection Criteria for Palletized, Solid-Piled, Bin Box, Shelf, or Back-to-Back Shelf Storage of Plastic and Rubber Commodities.
- 21.4 Control Mode Density/Area Sprinkler Protection Criteria for Rack Storage of Class I Through Class IV Commodities.
- 21.5 Control Mode Density/Area Sprinkler Protection Criteria for Single-, Double-, and Multiple-Row Racks for Group A Plastic Commodities Stored Up to and Including 25 ft (7.6 m) in Height.
- 21.6 Control Mode Density/Area Sprinkler Protection Criteria for Rack Storage of Group A Plastic Commodities Stored Over 25 ft (7.6 m) in Height for Single-, Double-, and Multiple-Row Racks.
- 21.7 Control Mode Density/Area Sprinkler Protection Criteria for Rack Storage of Rubber Tires.
- 21.8 Control Mode Density/Area Sprinkler Protection Criteria for Roll Paper Storage.
- Chapter 22 CMSA Requirements for Storage Applications [Go to Page]
- 22.1 General.
- 22.2 Palletized and Solid-Piled Storage of Class I Through Class IV Commodities.
- 22.3 Palletized and Solid-Piled Storage of Nonexpanded and Expanded Group A Plastic Commodities.
- 22.4 Single-, Double-, and Multiple-Row Rack Storage for Class I Through Class IV Commodities.
- 22.5 Single-, Double-, and Multiple-Row RacksRackStorage of Group A Plastic Commodities.
- 22.6 Rubber Tires.
- 22.7 Roll Paper Storage.
- Chapter 23 ESFR Requirements for Storage Applications [Go to Page]
- 23.1 General.
- 23.2 ESFR Design Criteria.
- 23.3 Early Suppression Fast-Response (ESFR)ESFR Sprinklers for Palletized or Solid-Piled,Solid-Piled, or Rack Storage of Class I Through Class IV and Group A Plastic Commodities.
- 23.4 Protection of Exposed Expanded Group A Plastics.
- 23.5 ESFR Protection of Rack Storage of Rubber Tires.
- 23.6 Early Suppression Fast-Response (ESFR)ESFR Sprinklers for Protection of Roll Paper Storage.
- Chapter 24 Alternative Sprinkler System Designs for Chapters 20 Through 25 [Go to Page]
- 24.1 General.
- 24.2 Sprinkler Design Criteria for Palletized and Solid-Piled, Storage of Class I Through Class IV and Plastic Commodities.
- 24.3 Sprinkler Protection Criteria for Open-Frame Rack Storage of Class I Through Class IV and Plastic Commodities.
- 24.4 Hose Stream Allowance and Water Supply Duration.
- 24.5 Minimum Obstruction Criteria.
- Chapter 25 Protection of Rack Storage Using In-Rack Sprinklers [Go to Page]
- 25.1 General Requirements offor Ceiling and In-Rack Sprinklers Protecting Rack Storage.
- 25.2 Protection of Miscellaneous and Low-Piled Rack Storage Using In-Rack Sprinklers.
- 25.3 In-Rack Sprinkler Protection in Combination with CMDA Ceiling-Level Sprinklers.
- 25.4 In-Rack Sprinkler Protection in Combination with CMSA Ceiling-Level Sprinklers.
- 25.5 In-Rack Sprinkler Protection in Combination with ESFR Ceiling-Level Sprinklers.
- 25.6 In-Rack Sprinkler Protection Options Independent of Ceiling-Level Sprinklers.
- 25.7 Evaluation or Modification of Existing Protection for Miscellaneous and Low-Piled Rack Storage Using In-Rack Sprinklers.
- 25.8 Evaluation or Modification of Existing CMDA Ceiling-Level Sprinkler Rack Storage Protection of Class I through Class IV Commodities Over 12 ft (3.7 m) and Up to and Including 25 ft (7.6 m) in Height Using In-Rack Sprinklers.
- Chapter 26 Special Designs of Storage Protection [Go to Page]
- 26.1 General.
- 26.2 Plastic Motor Vehicle Components.
- 26.3 Sprinkler Design Criteria for Storage and Display of Class I Through Class IV Commodities, Cartoned Nonexpanded Group A Plastics, and Nonexpanded Exposed Group A Plastics in Retail Stores.
- 26.4 Special Design for Rack Storage of Class I Through Class IV Commodities and Group A Plastics Stored Up to and Including 20 ft (6.1 m) in Height.
- 26.5 Control Mode Density/Area Sprinkler Protection Criteria for Baled Cotton Storage.
- 26.6 Control Mode Density/Area Sprinkler Protection Criteria for Cartoned Records Storage with Catwalk Access.
- 26.7 Control Mode Density/Area Protection Criteria for Compact Storage of Commodities Consisting of Paper Files, Magazines, Books, and Similar Documents in Folders and Miscellaneous Supplies with No More Than 5 Percent Plastics Up to 8 ft (2.4 m) High.
- 26.8 Protection of High Bay Records Storage.
- 26.9 Special Design for Palletized, Solid-Piled, Bin Box, or Shelf Storage of Class I Through Class IV Commodities.
- Chapter 27 Special Occupancy Requirements [Go to Page]
- 27.1 General.
- 27.2 Flammable and Combustible Liquids.
- 27.3 Aerosol Products.
- 27.4 Drycleaning Facilities.
- 27.5 Spray ApplicationApplications Using Flammable or Combustible Materials.
- 27.6 Dipping, Coating, and Printing Processes Using Flammable or Combustible Liquids.
- 27.7 Solvent Extraction Plants. [NFPA 36]
- 27.8 Installation and Use of Stationary Combustion Engines and Gas Turbines.
- 27.9 Cellulose Nitrate Film.
- 27.10 Laboratories Using Chemicals.
- 27.11 Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes.
- 27.12 Compressed Gases and Cryogenic Fluids Code.
- 27.13 Utility LP-Gas Plants.
- 27.14 Production, Storage, and Handling of Liquefied Natural Gas (LNG).
- 27.15 Protection of Information Technology Equipment.
- 27.16 Fire Protection of Telecommunication Facilities.
- 27.17 Standard on Incinerators, and Waste and Linen Handling Systems and Equipment.
- 27.18 Standard for Ovens and Furnaces.
- 27.19 Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids.
- 27.20 Health Care Facilities Code, Class A Hyperbaric Chambers.
- 27.21 Coal Mines.
- 27.22 Metal/Nonmetal Mining and Metal Mineral Processing Facilities.
- 27.23 Fixed Guideway Transit and Passenger Rail Systems.
- 27.24 Motion Picture and Television Production Studio Soundstages, Approved Production Facilities, and Production Locations.
- 27.25 Animal Housing Facilities.
- 27.26 Water Cooling Towers.
- 27.27 Standard for the Construction and Fire Protection of Marine Terminals, Piers, and Wharves.
- 27.28 Semiconductor Fabrication Facilities.
- 27.29 Hazardous Materials Code.
- 27.30 Aircraft Hangars.
- 27.31 Airport Terminal Buildings, Fueling Ramp Drainage, and Loading Walkways.
- 27.32 Aircraft Engine Test Facilities.
- 27.33 Advanced Light Water Reactor Electric Generating Plants.
- 27.34 Light Water Nuclear Power Plants.
- 27.35 Code for the Protection of Cultural Resource Properties — Museums, Libraries, and Places of Worship. [NFPA 909]
- Chapter 28 Plans and Calculations [Go to Page]
- 28.1 Working Plans.
- 28.2 Hydraulic Calculation Procedures.
- 28.3 Hose Allowance.
- 28.4 Hydraulic Calculation Forms.
- 28.5 Pipe Schedules.
- Chapter 29 Systems Acceptance [Go to Page]
- 29.1 Approval of Sprinkler Systems and Private Fire Service Mains.
- 29.2 Acceptance Requirements.
- 29.3 Instructions.
- 29.4 Hydraulic Design Information Sign (Hydraulic Data Nameplate).
- 29.5 Pipe Schedule Design Information Sign (Nameplate).
- 29.6 General Information Sign.
- Chapter 30 Existing System Modifications [Go to Page]
- 30.1 General.
- 30.2 Components.
- 30.3 Sprinklers.
- 30.4 Revamping of Pipe Schedule Systems.
- 30.5 Existing Systems Area/Density Curves.
- 30.6 Revamping of Hydraulic Design Systems.
- 30.7 System Design.
- 30.8 Testing.
- Chapter 31 Marine Systems [Go to Page]
- 31.1 General.
- 31.2 System Components, Hardware, and Use.
- 31.3 System Requirements.
- 31.4 Installation Requirements.
- 31.5 Design Approaches.
- 31.6 Plans and Calculations.
- 31.7 Water Supplies.
- 31.8 System Acceptance.
- 31.9 System Instructions and Maintenance.
- Chapter 32 System Inspection, Testing, and Maintenance [Go to Page]
- 32.1 General.
- Annex A Explanatory Material
- Annex B Miscellaneous Topics
- Annex C Explanation of Test Data and Procedures for Rack Storage
- Annex D Sprinkler System Information from the 2021 Edition of the Life Safety Code
- Annex E Development of the Design Approach to Conform with ASCE/SEI 7 and Suggested Conversion Factor Adjustments for Locations Outside the United States
- Annex F Informational References [Go to Page]