750: Standard on Water Mist Fire Protection Systems
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Help keep water mist fire protection systems up to code and ready for action with the 2023 edition of NFPA 750, Standard on Water Mist Fire Protection Systems.
Use NFPA 750, Standard on Water Mist Fire Protection Systems, to stay informed about the design, manufacture, installation, and acceptance testing of water mist fire protection systems. This standard describes design, installation, maintenance, and testing requirements for water mist fire protection systems and clarifies applications that benefit from these systems.
Research and technology for water mist fire protection systems are continually evolving, and so is NFPA 750, Standard on Water Mist Fire Protection Systems.
Water mist fire protection systems extinguish fires by displacing oxygen through water vapor, cooling the flames and reducing radiant heat. NFPA 750 details general requirements, along with provisions for all types of water mist systems, components, and hardware. To maintain consistency with other standards and to recognize the technological advancements with respect to these systems, the 2023 edition has been revised to:
- Include various definitions related to electronically operated water mist nozzles and incorporated requirements related to such systems.
- Update hazard occupancies based on the latest changes in the 2022 edition of NFPA 13, Standard for the Installation of Sprinkler Systems.
- Clarify the inclusion of unloader valves
- Expand the list of components that are required to have corrosion resistance
- Enhance the overpressure section to require additional valving for system protection
- Update low-rise building installation requirements
Designers, consumers, AHJs, installers, maintainers, and special experts–including users from museums and historic preservation societies–will find the guidance they need in NFPA 750, Standard on Water Mist Fire Protection Systems.
