0
1.4kviews
Define octane number and cetane number
1 Answer
written 5.6 years ago by |
Octane number of a petrol sample is defined as the % of iso-octane in the mixture of iso-octane & n-heptane, which has similar,knocking to the petrol sample.
Cetane number of diesel sample is defined as % of n hexadecane,in the mixture of n-hexadecane & 2-methyl naphthalene which,has same ignition character like the ignition character of the diesel under test.