A firefighting training fluid (FFTF) comprising a paraffin blend. The
blends of paraffins typically have no less than about two carbon atoms
and no more than about twelve carbon atoms. The blends of paraffins may
possess Reid vapor pressures in the range from about 2 to about 6.5
pounds per square inch. The blends also typically possess an initial
boiling point of not less than about 80 degrees Fahrenheit and an end
boiling point of not more than about 370 degrees Fahrenheit. The blends
burn relatively cleanly and keep emissions of volatile organic compounds,
compounds containing sulfur, smoke, particulates, olefins, and aromatics
to a minimum. The blend components mixed to create the blends of
paraffins are controlled in order to maintain Reid vapor pressure and
initial and end boiling points. Oxygenates may be added to an FFTF in
order to further reduce smoke emissions.