Article: Fire suppressant dispersion in a cold aircraft engine nacelle. (News Briefs).

Halon 1301 is the predominant fire suppressant used to extinguish aircraft engine-nacelle fires. Due to its adverse effect on the ozone layer, halon 1301 has been banned from production in the United States since 1994 in compliance with the Montreal Protocol on Substances that Deplete the Ozone Layer. NIST has since been extensively involved in the search for the replacements for halon 1301. Trifluoriodomethane (CF3I) has been proposed as a potential candidate for halon 1301 in aircraft engine nacelles.

One current focus at NIST is on the dispersion and distribution of CF3I at temperatures below its normal boiling point (-22 [degrees]C). Under such conditions, ...

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