UOP 741 PDF

UOP 741 – Paraffin and Naphthene Distribution by Carbon Number of Saturated Petroleum Distillates by GC

This method is for determining the distribution of paraffins and naphthenes by carbon number, in hydrocarbon samples having an endpoint of 200 degrees C or less (C3-C11). C12 at concentrations less than 3 can be determined. Olefins and aromatics interfere and must be removed prior to analysis by ASTM Method D 2002, D 2003 or other suitable technique. The lower limit of detection for a single carbon number hydrocarbon type is 0.05 mass- or LV-.