BS ISO 14520-1. Gaseous fire-extinguishing systems. Physical properties and system design Part 1. General requirements
|Standard number:||21/30429449 DC|
|Status:||Draft for Comment|
This standard 21/30429449 DC BS ISO 14520-1. Gaseous fire-extinguishing systems. Physical properties and system design is classified in these ICS categories:
- 13.220.10 Fire-fighting
This part of ISO 14520 specifies requirements and gives recommendations for the design, installation, testing, maintenance and safety of gaseous firefighting systems in buildings, plants or other structures, and the characteristics of the various extinguishants and types of fire for which they are a suitable extinguishing medium.
It covers total flooding systems primarily related to buildings, plants and other specific applications, utilizing electrically non-conducting gaseous fire extinguishants that do not leave a residue after discharge and for which there are sufficient data currently available to enable validation of performance and safety characteristics by an appropriate independent authority. This part of ISO 14520 does not apply to explosion suppression.
This part of ISO 14520 is not intended to indicate approval of the extinguishants listed therein by the appropriate authorities, as other extinguishants may be equally acceptable. CO2 is not included as it is covered by other International Standards.
This part of ISO 14520 applies to the extinguishants listed in Table 1. It is essential that it be used in conjunction with the separate parts of ISO 14520 for specific extinguishants, as cited in Table 1.
|HCFC Blend A|
|Nitrogen (50 %)||N2||7727-37-9|
|IG-55||Argon (50 %)||Ar||74040-37-1|
|Nitrogen (52 %)||N2||7727-37-9|
|IG-541||Argon (40 %)||Ar||74040-37-1|
|Carbon dioxide (8 %)||CO2||124-38-9|