DHA isoparaffins standard

This standard is produced for refineries performing Detailed Hydrocarbon Analysis (DHA) of crude oil feedstocks and fuels.

It contain 33 components: 3,3-Diethylpentane (1,914%), 2,3-Dimethylbutane (2,352%), 2,3-Dimethylheptane (1,16%), 2,5-Dimethylheptane (3,86%), 3,3-Dimethylheptane (1,765%), 3,4-Dimethylheptane (0,839%), 3,5-Dimethylheptane (2,344%), 2,2-Dimethylhexane (0,786%), 2,4-Dimethylhexane (1,454%), 2,5-Dimethylhexane (5,854%), 2,2-Dimethyloctane (2,095%), 3,3-Dimethyloctane (0,804%), 2,2-Dimethylpentane (2,438%), 2,3-Dimethylpentane (4,668%), 2,4-Dimethylpentane (5,931%), 3,3-Dimethylpentane (2,305%), 3-Ethylhexane (0,307%).

It helps with calibrating complex hydrocarbon analyses and provides the greatest number of gravimetrically determined values for quantitative calibration.

 : ASTM Methods D6729, D6730, and D6733 (Determination of Individual Components in Spark Ignition Engine Fuels)