FM-200 - Design Concentration
FM-200 (HFC-227ea) design concentration for Class A surface fires - 7 %, discharge in 10 s.
FM-200 mass
107.4kg
Formula, assumptions, and limits
FM-200 density 7.16 kg/m³ @ 21 °C, 1 atm. Class B fires need 8-9 %. FSS Code Ch. 5 permits halocarbons as CO₂ alternative. Low toxicity but GWP 3600.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| FM-200 vapour density | kg/m³ | NIST |