This document contains specific requirements for gaseous fire-extinguishing systems, with respect to FK-5-1-12 extinguishant. It includes details of physical properties, specifications, usage and safety aspects.
This document is applicable only to systems operating at nominal pressures of 25?bar, 34,5?bar, 42?bar and 50?bar[1] with nitrogen propellant. This does not preclude the use of other systems.