NFPA 12, 2025: Standard on Carbon Dioxide Extinguishing Systems
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Description
This standard contains minimum requirements for carbon dioxide fire-extinguishing systems. Contents: NFPA 12 Standard on Carbon Dioxide Extinguishing Systems 2025 Edition
This standard includes only the necessary essentials to make it workable in the hands of those skilled in this field.
Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Retroactivity.
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 Special Definitions.
Chapter 4 General Information
4.1 Restrictions for Normally Occupied Enclosures.
4.2 Carbon Dioxide Use and Limitations.
4.3 Personnel Safety.
4.4 Specifications, Plans, and Approvals.
4.5 Detection, Actuation, and Control.
4.6 Carbon Dioxide Supply.
4.7 Distribution Systems.
4.8 Inspection, Maintenance, and Instruction.
Chapter 5 Total Flooding Systems
5.1 General Information.
5.2 Hazard Specifications.
5.3 Carbon Dioxide Requirements for Surface Fires.
5.4 Carbon Dioxide Requirements for Deep-Seated Fires.
5.5 Distribution System.
5.6 Venting Consideration.
Chapter 6 Local Application Systems
6.1 General Information.
6.2 Hazard Specifications.
6.3 Carbon Dioxide Requirements.
6.4 Rate-by-Area Method.
6.5 Rate-by-Volume Method.
6.6 Distribution System.
Chapter 7 Hand Hose Line Systems
7.1 General Information.
7.2 Hazard Specifications.
7.3 Location and Spacing.
7.4 Carbon Dioxide Requirements.
7.5 Equipment Specifications.
7.6 Training.
Chapter 8 Standpipe Systems and Mobile Supply
8.1 General Information.
8.2 Hazard Specifications.
8.3 Standpipe Requirements.
8.4 Mobile Supply Requirements.
8.5 Training.
Chapter 9 Marine Systems
9.1 Special Definitions.
9.2 General.
9.3 System Requirements.
9.4 Inspection and Maintenance.
Annex A Explanatory Material
Annex B Examples of Hazard Protection
Annex C Pipe and Orifice Size Determination
Annex D Total Flooding Systems
Annex E Surface Fires
Annex F Local Application Carbon Dioxide Systems
Annex G General Information on Carbon Dioxide
Annex H Informational References