Article,

A Method for Measuring Upper Flash Point

, and .
Journal of Loss Prevention in the Process Industries, 4 (3): 176--184 (April 1991)
DOI: http://dx.doi.org/10.1016/0950-4230(91)80034-R

Abstract

An easy, practical method for the measurement of the upper flash point is reported. The two small observing windows of a Seta-flash closed-cup apparatus were closed to air. A sample was introduced into the cup, left for 5 min, then ignited. The upper flash point could be measured under the vapour--liquid equilibrium state by this modified procedure. The upper flash points of 33 chemicals and three petroleum products were determined. An empirically obtained equation (Tf = Ts + 6.42) was used to calculate the upper flammable-limit temperature, Tf, with 5.25 C precision, using the observed upper flash point Ts. The temperature ranges of the cool flame zone could also be measured using sensitive fine thermocouples.

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