ASTM Methods D6729, D6730, and D6733 (Determination of Individual Components in Spark Ignition Engine Fuels) are designed for the determination of the individual hydrocarbons present in spark ignition engine fuels, as well as fuel blends containing oxygenates such as methyl tert-butyl ether, ethyl tert-butyl ether, tert-butanol, ethanol, etc.

This standard is produced for refineries performing Detailed Hydrocarbon Analysis (DHA) of crude oil feedstocks and fuels. It helps with calibrating complex hydrocarbon analyses and provides the greatest number of gravimetrically determined values for qualitative calibration to help our customers optimize production and maximize profitability—while fulfilling requirements such as ASTM Methods D6729, D6730, and D6733.

Compound, Conc (wt/wt%):

• Cyclohexane, 4.773%
• Cyclopentane, 9.455%
• cis-1,2-Dimethylcyclohexane, 10.276%
• trans-1,2-Dimethylcyclohexane, 1.642%
• trans-1,4-Dimethylcyclohexane, 4.705%
• trans-1,2-Dimethylcyclopentane, 3.653%
• cis-1,3-Dimethylcyclopentane, 0.3%
• trans-1,3-Dimethylcyclopentane, 5.799%
• Ethylcyclopentane, 7.837%
• 1-Ethyl-1-Methylcyclopentane, 1.459%
• Isobutylcyclohexane, 3.666%
• Isobutylcyclopentane, 1.334%
• Isopropylcyclopentane, 1.305%
• Methylcyclohexane, 3.677%
• Methylcyclopentane, 5.921%
• t-1-Methyl-2(Methylphenyl)cyclopentane, 3.592%
• t-1-Methyl-2-N-Propylcyclohexane, 4.637%
• N-Propylcyclopentane, 4.373%
• 1,1,2-Trimethylcyclohexane, 1.842%
• 1,1,4-Trimethylcyclohexane, 6.304%
• ctc-1,2,3-Trimethylcyclohexane, 3.676%
• ctc-1,2,4-Trimethylcyclohexane, 1.062%
• ctt-1,2,4-Trimethylcyclohexane, 1.839%
• ccc-1,3,5-Trimethylcyclohexane, 2.343%
• ccc-1,2,3-Trimethylcyclopentane, 0.795%
• ctc-1,2,3-Trimethylcyclopentane, 3.738%