Since ISO standards are adopted globally, you can buy from your local representative:
: To be effective, the system must reach the design concentration within 10 seconds. iso 14520-5 pdf
In the world of passive and active fire protection, precision is not just a requirement—it is a matter of life and death. For engineers, safety managers, and system designers working with gaseous fire suppression, the standard is the definitive reference. Specifically, this part of the ISO 14520 series addresses the requirements for HFC 227ea (heptafluoropropane) extinguishants. Since ISO standards are adopted globally, you can