DS EN 12916:2006 Petroleum Products - Determination Of Aromatic Hydrocarbon Types In Middle Distillates - High Performance Liquid Chromatography Method With Refractive Index Detection Describes a test method for the determination of the content of mono-aromatic, di-aromatic and tri+-aromatic hydrocarbons in diesel fuels that may contain fatty acid methyl esters (FAME) up to 5% (V/V