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Warning sign for fire suppression system Civilian Halon 1301 fire extinguisher, USA, 1980s. Halon 1301 was developed in a joint venture between the U.S. Army and Purdue University in the late 1940's, [5] and became a DuPont product in 1954.
[citation needed]) Halon 1211 also has low toxicity, although it is more toxic than Halon 1301, and thus considered unsuitable for flooding systems. However, Halon 1301 fire suppression is not completely non-toxic; very high temperature flame, or contact with red-hot metal, can cause decomposition of Halon 1301 to toxic byproducts.
In the 1970s, Halon 1211 came over to the United States from Europe where it had been used since the late 1940s or early 1950s. Halon 1301 had been developed by DuPont and the United States Army in 1954. Both 1211 and 1301 work by inhibiting the chain reaction of the fire, and in the case of Halon 1211, cooling class A fuels as well.
From the mid-1960s Halon 1301 was the industry standard for protecting high-value assets from the threat of fire. Halon 1301 had many benefits as a fire suppression agent; it is fast-acting, safe for assets and required minimal storage space. Halon 1301's major drawbacks are that it depletes atmospheric ozone and is
Halon 1202 Fluorocarbon 12-B2 FC 12-B2 R 12B2 ... Warning: Hazard statements. H420: ... It is a colorless non-flammable liquid. Along with Halons 1211, 2402, and 1301
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Montreal Protocol enforced a phased ban on halon-based products. Pyrotechnically generated aerosol extinguishing agent (PGAEA) was first suggested by Senecal in 1992. [7] The United States Environmental Protection Agency has approved condensed aerosol fire suppression systems as acceptable substitutes for Halon 1301 in total flooding systems. [8]
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