Gaseous fire-extinguishing systems -- Physical properties and system design -- Part 9: HFC 227ea extinguishant
This standard has been revised by ISO 14520-9:2016
ISO 14520-9:2005 gives specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 227ea extinguishant. It includes details of physical properties, specification, usage and safety aspects and is applicable to systems operating at nominal pressures of 25 bar and 42 bar superpressurized with nitrogen. This does not preclude the use of other systems.