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Halon is no longer used because it breaks down the Ozone layer, not because it is bad for your health. Ironically, if it is used on a fire then it causes no problem to the ozone layer, but the vast majority of the Halon that is made will eventually just be released into the atmosphere, thus the ban on it's use.
discovery channel is kickass
The metal container is not cooled by the dry powder, should be followed up with foam fire extinguisher.
The flammable liquid used in the demo reignites because it has reached its auto ignition temperature.
the fire is the chemical reaction!!
But they stopped using Halon 1301 because it is bad for your health.
useless crap
Why re ignition? The fire load (amount of petrol and heat) is too great for the amount of fire suppressing agent. Much like pissing on a bon fire.
The powder breaks down at about 70 deg C and forms CO2 gas, CO2 is heavier than air/oxygen as such it pushes the O2 away from the fire.
obese1konobe, bugguy905 is correct, you as a pilot should know that, yes??
This vid is a simple explanation, such as the fire triangle to keep it simple. A fire consists of four elements the fire pyramid, heat, oxygen, fuel and chem. reaction, the fire industry know this.
Also, the powder is not designed to only smother the fire (we could use sand instead, much cheaper).