NFPA 770, Standard on Hybrid (Water and Inert Gas) Fire Extinguishing Systems, delivers the first document offering comprehensive requirements for the safer and more effective use of this modern means of fire suppression. . The essence of hybrid fire extinguishing systems standards lies in the rigorous guidelines and codes established by leading organizations like the National Fire Protection Association (NFPA), Underwriters Laboratories (UL), FM Global, and the International Organization for Standardization (ISO). . NFPA 770 standard is prepared for the use and guidance of those charged with the purchasing, designing, installing, testing, inspecting, approving, listing, operating, or maintaining of hybrid fire-extinguishing systems, in order that such equipment will function as intended throughout its life. The scope of this standard does not include systems that use. . of Tentative Interim Amendments (TIAs), or be corrected by Errata. It is intended that through regular revisions and amendments, participants in the NFPA standards development process consider the then-current and available information on incidents, materials, technologies, innovations, and. . Expand your knowledge of hybrid fire extinguishing systems with NFPA 770, first edition. Hybrid media, created by the simultaneous discharge of fine water mist and an inert gas agent, provides a unique set of characteristics that is ideal for dispersion, extinguishment, and cooling.