NFPA 15:2022

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 General Requirements 4.1 Design Objectives. 4.2 Special Considerations. 4.3 Qualifications. 4.4 Control of Runoff. 4.5 Flammable and Combustible Liquids.Chapter 5 System Components 5.1 General. 5.2 Water Spray Nozzles. 5.3 Pipe and Tube. 5.4 Fittings. 5.5 Joining of Pipe and Fittings. 5.6 Hangers. 5.7 Valves. 5.8 Pressure Gauges. 5.9 Strainers. 5.10 Fire Department Connections. 5.11 Alarms. 5.12 Detection Systems. Chapter 6 Installation Requirements 6.1 Basic Requirements. 6.2 Water Spray Nozzles. 6.3 Piping Installation. 6.4 System Attachments. 6.5 Automatic Detection Equipment. Chapter 7 Design Objectives 7.1 System Design. 7.2 Extinguishment. 7.3 Control of Burning. 7.4 Exposure Protection. 7.5 Flammable Vapor Mitigation. 7.6 Combined Systems. 7.7 Automatic Detection Equipment.Chapter 8 Plans and Hydraulic Calculations 8.1 General. 8.2 Working Plans. 8.3 Hydraulic Calculations. 8.4 Water Supply Information. 8.5 Hydraulic Calculation Procedures. Chapter 9 Water Supplies 9.1 General. 9.2 Volume and Pressure. 9.3 Acceptable Water Supply Systems. Chapter 10 System Acceptance 10.1 Certification. 10.2 Flushing of Supply Pipe. 10.3 Hydrostatic Pressure Tests. 10.4 Operating Tests. 10.5 Hydraulic Design Information Sign. 10.6 General Information Sign. Chapter 11 System Inspection, Testing, and Maintenance 11.1 General. Chapter 12 Ultra-High-Speed Water Spray Systems 12.1 General. 12.2 Response Time. 12.3 Design Considerations. 12.4 System Acceptance. 12.5 Testing and Maintenance. Annex A Explanatory Material Annex B Hydraulic Calculations Annex C Informational References

This standard provides the minimum requirements for the design, installation, and system acceptance testing of water spray fixed systems for fire protection service and the minimum requirements for the periodic testing and maintenance of ultra-high-speed water spray fixed systems.