21 00 00 Fire Suppression
21 01 00 Operation and Maintenance of Fire Suppression
21 01 10 Operation and Maintenance of Water-Based Fire-Suppression Systems
21 01 20 Operation and Maintenance of Fire-Extinguishing Systems
21 01 30 Operation and Maintenance of Fire-Suppression Equipment
21 05 00 Common Work Results for Fire Suppression
21 05 13 Common Motor Requirements for Fire-Suppression Equipment
21 05 16 Expansion Fittings and Loops for Fire-Suppression Piping
21 05 19 Meters and Gages for Fire-Suppression Systems
21 05 23 General-Duty Valves for Water-Based Fire-Suppression Piping
21 05 29 Hangers and Supports for Fire-Suppression Piping and Equipment
21 05 33 Heat Tracing for Fire-Suppression Piping
21 05 48 Vibration and Seismic Controls for Fire-Suppression Piping and Equipment
21 05 53 Identification for Fire-Suppression Piping and Equipment
21 06 00 Schedules for Fire Suppression
21 06 10 Schedules for Water-Based Fire-Suppression Systems
21 06 20 Schedules for Fire-Extinguishing Systems
21 06 30 Schedules for Fire-Suppression Equipment
21 07 00 Fire Suppression Systems Insulation
21 07 16 Fire-Suppression Equipment Insulation
21 07 19 Fire-Suppression Piping Insulation
21 08 00 Commissioning of Fire Suppression
21 09 00 Instrumentation and Control for Fire-Suppression Systems
21 10 00 Water-Based Fire-Suppression Systems
21 11 00 Facility Fire-Suppression Water-Service Piping
21 11 16 Facility Fire Hydrants
21 11 19 Fire-Department Connections
21 12 00 Fire-Suppression Standpipes
21 12 13 Fire-Suppression Hoses and Nozzles
21 12 16 Fire-Suppression Hose Reels
21 12 19 Fire-Suppression Hose Racks
21 12 23 Fire-Suppression Hose Valves
21 13 00 Fire-Suppression Sprinkler Systems
21 13 13 Wet-Pipe Sprinkler Systems
21 13 16 Dry-Pipe Sprinkler Systems
21 13 19 Preaction Sprinkler Systems
21 13 23 Combined Dry-Pipe and Preaction Sprinkler Systems
21 13 26 Deluge Fire-Suppression Sprinkler Systems
21 13 29 Water Spray Fixed Systems
21 13 36 Antifreeze Sprinkler Systems
21 13 39 Foam-Water Systems
21 16 00 Fire-Suppression Pressure Maintenance Pumps
21 20 00 Fire-Extinguishing Systems
21 21 00 Carbon-Dioxide Fire-Extinguishing Systems
21 21 13 Carbon-Dioxide Fire-Extinguishing Piping
21 21 16 Carbon-Dioxide Fire-Extinguishing Equipment
21 22 00 Clean-Agent Fire-Extinguishing Systems
21 22 13 Clean-Agent Fire-Extinguishing Piping
21 22 16 Clean-Agent Fire-Extinguishing Equipment
21 23 00 Wet-Chemical Fire-Extinguishing Systems
21 23 13 Wet-Chemical Fire-Extinguishing Piping
21 23 16 Wet-Chemical Fire-Extinguishing Equipment
21 24 00 Dry-Chemical Fire-Extinguishing Systems
21 24 13 Dry-Chemical Fire-Extinguishing Piping
21 24 16 Dry-Chemical Fire-Extinguishing Equipment
21 30 00 Fire Pumps
21 31 00 Centrifugal Fire Pumps
21 31 13 Electric-Drive, Centrifugal Fire Pumps
21 31 16 Diesel-Drive, Centrifugal Fire Pumps
21 32 00 Vertical-Turbine Fire Pumps
21 32 13 Electric-Drive, Vertical-Turbine Fire Pumps
21 32 16 Diesel-Drive, Vertical-Turbine Fire Pumps
21 33 00 Positive-Displacement Fire Pumps
21 33 13 Electric-Drive, Positive-Displacement Fire Pumps
21 33 16 Diesel-Drive, Positive-Displacement Fire Pumps
21 40 00 Fire-Suppression Water Storage
21 41 00 Storage Tanks for Fire-Suppression Water
21 41 13 Pressurized Storage Tanks for Fire-Suppression Water
21 41 16 Elevated Storage Tanks for Fire-Suppression Water
21 41 19 Roof-Mounted Storage Tanks for Fire-Suppression Water
21 41 23 Ground Suction Storage Tanks for Fire-Suppression Water
21 41 26 Underground Storage Tanks for Fire-Suppression Water
21 41 29 Storage Tanks for Fire-Suppression Water Additives

Available for new and retrofit construction,
 fire suppression systems consist of both water-based and chemical fire extinguishants,
 as well as equipment designed to prevent or extinguish fires.
 Equipment components can include sprinklers, extinguishers,
 hydrants, pumps, hoses, nozzles, valves, connections, piping insulation,
 instrumentation, controls and storage tanks.
 In recent years, green construction methods
 have focused attention on fire extinguishants that are eco-friendly
 and pose fewer risks to human and environmental health.
 Fueled in part by updated building code regulations,
 there is also a growing demand for and availability of products
 meeting retrofit application requirements.

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