Consequently, diesel fuel must have a high flash point and a low autoignition temperature.

Therefore, 2-methylhexane has a lower autoignition temperature and flash point when compared to heptane.

Oxyhydrogen will combust when brought to its autoignition temperature.

Whereas charcoal's autoignition temperature is relatively low, carbon's is much greater.

The surface of a high pressure steam pipe may be above the autoignition temperature of some fuel/air mixtures.

CS, being highly flammable and having one of the lowest autoignition temperatures, cannot be transported easily using commercial means.

When measured for plastics, autoignition temperature can also be measured under elevated pressure and at 100% oxygen concentration.

For instance, most flammable substances are characterised by an autoignition temperature at which they will undergo combustion in air without an external flame or spark.

Autoignition temperature:

This process also heats the methane above its autoignition temperature so that when it "burps" the hot methane ignites.

Upon reaching the threshold temperature (autoignition temperature) the combustion process begins, with the release of heat sufficient to ignite the nearest areas.

Autoignition Temperature of 100 Common Organic Chemical Compounds.

In order to avoid preignition by the residual heat of a hot combustion chamber, the fuel must have a low flash point and a high autoignition temperature.

Flux vapors tend to have low autoignition temperature and present a risk of a flash fire when the flux comes in contact with a hot surface.

A material may have a relatively low autoignition temperature yet if its flash-point is above the ambient temperature, then the area may not need to be classified.

Flashover occurs when the majority of the exposed surfaces in a space are heated to their autoignition temperature and emit flammable gases (see also flash point).

"Although the autoignition temperature of hydrogen is higher than those for most hydrocarbons, hydrogen's lower ignition energy makes the ignition of hydrogen-air mixtures more likely.

The autoignition temperature of caesium is also 116 C, so it is highly pyrophoric, and ignites explosively in air to form caesium hydroxide and various oxides.

Air is compressed until it has been heated above the autoignition temperature of the fuel, which is then injected as a high-pressure spray, keeping the fuel-air mix within flammable limits.

Ignition occurs as the temperature of the fuel/air mixture is taken over its autoignition temperature, due to heat generated by the compression of the air during the compression stroke.

The main mechanism of combustion propagation is of a powerful pressure wave that compresses the unburnt gas ahead of the wave to a temperature above the autoignition temperature.

The flash point is different than the autoignition temperature, which does not require an ignition source, or the fire point, the temperature at which the vapor continues to burn after being ignited.

Heat producing elements such as motor winding, electrical heaters, including heat tracing and lighting fixtures are often designed to limit their maximum temperature below the autoignition temperature of the material involved.

Autoignition temperatures of liquid chemicals are typically measured using a 500 mL flask placed in a temperature controlled oven in accordance with the procedure described in ASTM E659.

Autoignition temperature is also dependent upon the exposure time, thus at some tests it is quoted as 525 C. Also, industrial acetone is likely to contain small amount of water which also inhibits ignition.