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New page: Halon is a compound consisting of bromine, fluorine, and carbon. The halons are used as fire extinguishing agents, both in built-in systems and in handheld portable fire extinguishers. Ha...
Halon is a compound consisting of bromine, fluorine, and carbon.
The halons are used as fire extinguishing agents, both in built-in systems and in handheld portable fire extinguishers. Halon production in the U.S. ended on 12/31/93 because they contribute to [[ozone]] depletion. They cause ozone depletion because they contain [[bromine]]. Bromine is many times more effective at destroying ozone than chlorine.
At the time the current U.S. tax code was adopted, the [[ozone depletion potentials]] of halon 1301 and halon 1211 were observed to be 10 and 3, respectively. These values are used for tax calculations. Recent scientific studies, however, indicate that the ODPs are at least 12 and 6, respectively.
Note that technically all compounds containing carbon and fluorine and/or chlorine are halons, but in the context of the [[Clean Air Act]], "halon" means a fire extinguishing agent as described above.
The halons are used as fire extinguishing agents, both in built-in systems and in handheld portable fire extinguishers. Halon production in the U.S. ended on 12/31/93 because they contribute to [[ozone]] depletion. They cause ozone depletion because they contain [[bromine]]. Bromine is many times more effective at destroying ozone than chlorine.
At the time the current U.S. tax code was adopted, the [[ozone depletion potentials]] of halon 1301 and halon 1211 were observed to be 10 and 3, respectively. These values are used for tax calculations. Recent scientific studies, however, indicate that the ODPs are at least 12 and 6, respectively.
Note that technically all compounds containing carbon and fluorine and/or chlorine are halons, but in the context of the [[Clean Air Act]], "halon" means a fire extinguishing agent as described above.