Also known as: fl.
FL has various meanings in the Airway category. Discover the full forms, definitions, and usage contexts of FL in Airway.
Hazardous cargo. Flammable liquids are those that give off vapours which become spontaneously combustible at certain temperatures (flash point); these are often referred to as "inflammable" but "flammable" is preferred.
AirwayThe freezing level, or 0 °C (zero–degree) isotherm, represents the altitude in which the temperature is at 0 °C (the freezing point of water) in a free atmosphere (ie allowing reflection of the sun by snow, etc). Any given measure is valid for only a short period of time, often less than a day.
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