The International Organization for Standardization sells the official PDF directly. You can purchase a single-user license (watermarked with your organization’s name). As of 2025, the price ranges from (Swiss Francs), depending on your country’s pricing policy.
: Provides tables for minimum design concentrations for different fuel types (e.g., Class B heptane fires and Surface Class A fires) iTeh Standards Safety Factors iso 14520-5 pdf
Minimum purity levels to ensure effective suppression. the price ranges from (Swiss Francs)
: To be effective, the system must reach the design concentration within 10 seconds. iso 14520-5 pdf