Application Notes:
 

cetane number


is the measure of the ignition quality of a diesel fuel, expressed as the percentage of cetane that must be mixed with liquid methylnaphthalene to produce the same ignition performance as the diesel fuel being rated, as determined by test method ASTM-D-613. A high cetane number indicates shorter ignition lag and a cleaner burning fuel.

Also see cetane index, diesel index.

 

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