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Spontaneous ignition temperatures from 1 to 9 atmospheres were measured in air for n-heptane (straight-chain paraffin), isooctane (branched-chain paraffin), benzene (aromatic), and JP-4 and JP-5 fu...
Spontaneous ignition temperatures from 1 to 9 atmospheres were measured in air for n-heptane (straight-chain paraffin), isooctane (branched-chain paraffin), benzene (aromatic), and JP-4 and JP-5 fuels. A 125-cc Erlenmeyer flask was employed as the ignition chamber, and fuel was injected in a solid stream (no spray) into the flask enclosed in a bomb. Fuel charges were varied to obtain the lowest temperature at which ignition occurs. Time lags before ignition were measured at each pressure for all fuels.