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In the revised NFPA 10 section "2-3 "Application for Specific Hazards" requires "fast flow" extinguishers in locations containing pressurized flammable liquids and pressurized flammable gas And areas with three dimensional class B hazards. Pressurized gas and three dimensional fires require higher flow rates then standard extinguishers in order to be extinguished. The higher flow rate puts more agent onto the fire quicker and results in in a faster "knock-down" of the fire. Higher flow rates also provide more operator protection by putting a "heavier" stream of dry chemical in between the operator and fire. This creates a temporary "heat shield" as long as the agent is being discharged because of the light color of the agent it reflects most of the radiant heat back away from the operator.
==See Also==
*[[Fire Extinguishers]]
*[[Fire Protection]]
*[[Condensed Aerosol Fire Suppression]]
[[Category:Firefighting equipment]]
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