HFC-227ea Quantity (FM-200)
FM-200 / HFC-227ea agent quantity for total flooding from FSS Code Ch.5: 6.25–9 % v/v concentration.
HFC-227ea mass required
109.8kg
Formula, assumptions, and limits
NFPA 2001 / FSS Ch.5 formulation. Must discharge in ≤ 10 s. Clean-agent rooms must be pressure-relief sealed to avoid over-pressurisation during discharge (vent area ≈ W / 0.5 m³ per kg).
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Protected volume | m³ | GA plan | |
| Design concentration | % v/v | NFPA 2001 | |
| Specific vapour volume of HFC-227ea at T | m³/kg | 0.1269 + 0.000513 T | |
| Agent mass | kg | result |