Flashing point

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(Chem.) that degree of temperature at which a volatile oil gives off vapor in sufficient quantity to burn, or flash, on the approach of a flame, used as a test of the comparative safety of oils, esp. kerosene; a flashing point of 100° F. is regarded as a fairly safe standard. The burning point of the oil is usually from ten to thirty degree above the flashing point of its vapor. Usually called flash point.

See also: Flashing

References in classic literature ?
The front of the regiment was a smoke- wall penetrated by the flashing points of yellow and red.