Halon


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.
Related to Halon: Halon gas

halon

[′ha‚län]
(organic chemistry)
A fluorocarbon that has one or more bromine atoms in its molecule.

Halon

Bromine-containing compounds with long atmospheric lifetimes whose breakdown in the stratosphere causes depletion of ozone. Halons are used in fire suppression systems and fire extinguishers.
References in periodicals archive ?
Stuart Flowerdew, Halon's defence lawyer, said his client had arranged to go out socialising, believing someone else was coming to babysit the primary school pupil.
It, and newer Halon alternatives, are considered clean agents because they pose little risk to humans in the area when discharged.
What are the common types of gaseous agents that have been developed as alternatives to Halon? There are two common types of gaseous agents that are considered replacements to Halon: halocarbon compounds and inert gases.
Don't waste your time trying to order one of the old Halon HHFEs.
"With Halon Security we want to assemble the stringent requirements that the media industry has for a firewall.
"Most focus first on economic problems and then on the environment," says Wilman Rajiman, the Indonesia Halon Bank Project manager at Soekarno-Hatta International Airport in Jakarta.
While DND's reports of Halon discharges usually assert that "no injuries are sustained" and that "media interest is assessed as unlikely," it is worth noting the United States military is currently replacing its automatic Halon fire and explosion suppression system with the Great Lakes Chemical Corporation's Fire Master 200 heptafluoropropane gas.
This protocol originally froze Halon production at 1986 levels in 1992, called for a 50 percent reduction by 1995, and required a complete phaseout by 2000.
But there are disadvantages to using CO.sub.2 instead of halon. Canisters for CO.sub.2 require much heavier casing, for one thing; a CO.sub.2 extinguisher weighs half again as much as a same-size halon unit.
Both halon 1301 and halon 1211 are used in military land vehicles and naval vessels for the protection of manned areas and engine compartments.