NFPA 12A:2025

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Units. 1.4 Use and Limitations. 1.5 Safety. 1.6 Recycling of Halon 1301. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. (Reserved) Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 Components 4.1 Halon 1301 Supply. 4.2 Distribution. 4.3 Detection, Actuation, Alarm, and Control Systems. Chapter 5 System Design 5.1 Specifications, Plans, and Approvals. 5.2 System Flow Calculations. 5.3 Enclosure. 5.4 Design Concentration Requirements. 5.5 Determination of Halon 1301 Quantity for Total Flooding Systems. 5.6 Altitude Adjustments. 5.7 Distribution System. 5.8 Nozzle Choice and Location. Chapter 6 Inspection, Maintenance, Testing, and Training 6.1 Inspection and Tests. 6.2 Container Test. 6.3 Hose Test. 6.4 Enclosure Inspection. 6.5 Maintenance. 6.6 Training. 6.7 Approval of Installations. Annex A Explanatory Material Annex B Enclosure Integrity Procedure Annex C Halogenated Extinguishing Agents Annex D Hazards to Personnel Annex E Storage Containers Annex F Piping Annex G System Flow Calculations Annex H Nozzles Annex I Fire Extinguishment Annex J Surface Fires Annex K Total Flooding Quantity Annex L Approval of Installations Annex M Informational References

This standard contains minimum requirements for total flooding Halon 1301 fire extinguishing systems.