Start Date
4-1969 8:00 AM
Description
An investigation was conducted into the possibility of using Halon 1301 (bromotrifluoromethane) to inert enclosed, personnel-occupied spaces where spills of Aerozine-50 might occur. The effectiveness of this agent in extinguishing Aerozine-50 fires was also investigated. The concentrations of Halon 1301 required to inert Aerozine-50 vapor-air mixtures depended upon the fuel vapor concentration; except at very high fuel concentration, the amount required was always less than that for nitrogen.
High concentrations of Halon 1301 are required to extinguish Aerozine-50 fires, and extinguishment appears possible only during the early stages of burning, before the propellant becomes too concentrated in the high-boiling hydrazine component. There is no advantage in the simultaneous application of C02 and Halon 1301, but the concurrent application of H2O and Halon 1301 provides relatively easy extinguishment.
Application of Halon 1301 to the Prevention of or Extinguishment of Aerozine -50 Fires
An investigation was conducted into the possibility of using Halon 1301 (bromotrifluoromethane) to inert enclosed, personnel-occupied spaces where spills of Aerozine-50 might occur. The effectiveness of this agent in extinguishing Aerozine-50 fires was also investigated. The concentrations of Halon 1301 required to inert Aerozine-50 vapor-air mixtures depended upon the fuel vapor concentration; except at very high fuel concentration, the amount required was always less than that for nitrogen.
High concentrations of Halon 1301 are required to extinguish Aerozine-50 fires, and extinguishment appears possible only during the early stages of burning, before the propellant becomes too concentrated in the high-boiling hydrazine component. There is no advantage in the simultaneous application of C02 and Halon 1301, but the concurrent application of H2O and Halon 1301 provides relatively easy extinguishment.
Comments
No other information or file available for this session.