This part of ISO 14520 contains specific requirements for gaseous fire-extinguishing systems, with respect to the FC-3-1-10 extinguishant. It includes details of physical properties, specification, usage and safety aspects. 2 This part of ISO 14520 covers systems operating at a nominal pressure of 25 bar, superpressurized with nitrogen. This does not preclude the use of other systems
SANS 14520-4:2000 history
2000SANS 14520-4:2000 Gaseous fire-extinguishing systems - Physical properties and system design Part 4: FC-3-1-10 extinguishant