NFPA 25:2023

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. 1.4 Units. 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. 3.4 Deluge Foam-Water Sprinkler and Foam-Water Spray Systems Definitions. 3.5 Valve Definitions. 3.6 Water-Based Fire Protection System Definitions. 3.7 Inspection, Testing, and Maintenance (ITM) Task Frequencies. Chapter 4 General Requirements 4.1 Responsibility of Property Owner or Designated Representative. 4.2 Manufacturer's Corrective Action. 4.3 Records. 4.4 Water Supply Status. 4.5 Inspection. 4.6 Testing. 4.7 Performance-Based Compliance Programs. 4.8 Maintenance. 4.9 Safety. Chapter 5 Sprinkler Systems 5.1 General. 5.2 Inspection. 5.3 Testing. 5.4 Maintenance. 5.5 Component Action Requirements. Chapter 6 Standpipe and Hose Systems 6.1 General. 6.2 Inspection. 6.3 Testing. 6.4 Maintenance. 6.5 Component Action Requirements. Chapter 7 Private Fire Service Mains 7.1 General. 7.2 Inspection and Corrective Action. 7.3 Testing. 7.4 Maintenance. 7.5 Component Action Requirements. Chapter 8 Fire Pumps 8.1 General. 8.2 Inspection. 8.3 Testing. 8.4 Reports. 8.5 Maintenance. 8.6 Component Replacement Testing Requirements.Chapter 9 Water Storage Tanks 9.1 General. 9.2 Inspection. 9.3 Testing. 9.4 Maintenance. 9.5 Automatic Tank Fill Valves. 9.6 Component Action Requirements.Chapter 10 Water Spray Fixed Systems 10.1 General. 10.2 Inspection and Maintenance Procedures. 10.3 Testing. 10.4 Ultra-High-Speed Water Spray System (UHSWSS) Operational Tests. 10.5 Component Action Requirements. Chapter 11 Foam Systems 11.1 General. 11.2 Inspection. 11.3 Testing. 11.4 Maintenance. Chapter 12 Water Mist Systems 12.1 General. 12.2 Inspection. 12.3 Testing. 12.4 Maintenance. 12.5 Training.Chapter 13 Common Components and Valves 13.1 General. 13.2 General Provisions. 13.3 Control Valves in Water-Based Fire Protection Systems. 13.4 System Valves. 13.5 Pressure-Reducing Valves and Relief Valves. 13.6 Hose Valves. 13.7 Backflow Prevention Assemblies. 13.8 Fire Department Connections. 13.9 Automatic Detection Equipment. 13.10 Air Compressors and Nitrogen Generators. 13.11 Automatic Air Vents. 13.12 Component Testing Requirements. Chapter 14 Internal Piping Condition and Obstruction Investigation 14.1 General. 14.2 Assessment of Internal Condition of Piping. 14.3 Obstruction Investigation and Prevention. 14.4 Ice Obstruction. Chapter 15 Impairments 15.1 General. 15.2 Impairment Coordinator. 15.3 Tag Impairment System. 15.4 Impaired Equipment. 15.5 Preplanned Impairment Programs. 15.6 Emergency Impairments. 15.7 Restoring Systems to Service. Chapter 16 Special Requirements from Other NFPA Documents 16.1 General. 16.2 Small Residential Board and Care Occupancies. Annex A Explanatory Material Annex B Forms and Reports for Inspection, Testing, and Maintenance Annex C Possible Causes of Pump Troubles Annex D Obstruction Investigation Annex E Hazard Evaluation Form Annex F Connectivity and Data Collection Annex G Color-Coded Tagging Program Annex H Hazards of Legacy Antifreeze Solutions Annex I Informational References

This document establishes the minimum requirements for the periodic inspection, testing, and maintenance of water-based fire protection systems and the actions to undertake when changes in occupancy, use, process, materials, hazard, or water supply that potentially impact the performance of the water-based system are planned or identified.