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I <br /> CHEVRON RESEARCH AND TECHNOLOGY COMPANY <br /> INTEGRATED LABORATORY TECHNOLOGIES UNIT <br /> PROJECT SUMMARY <br /> Project No. 1999 0060 Requested by B L Hunter <br /> Date Initiated 6/7/99 Location Chevron Products Co <br /> Date Completed 7/15/99 P O Box 6004, L-1100 <br /> CRTC Charge Code YWTFI09227 San Ramon, CA 94583-0904 <br /> Phone 842-8695 <br /> Project Description. Analyze a hydrocarbon sample, labeled MW-4, taken from Chevron service station <br /> number 9-8264 at 3775 Tracy Blvd , Tracy, CA Identify the hydrocarbon, determine if oxygenates are <br /> present, and if possible, determine age of the product <br /> Results Sample MW-4 contains unleaded gasoline The gasoline is Chevron's, as it contains a <br /> proprietary marker that has been added since January 1999 It appears to be a supreme grade, although no <br /> references were submitted for comparison/va[idation As expected, no oxygenates are present in the <br /> hydrocarbon phase <br /> Analytical Approach The sample was analyzed by gas chromatography using a flame ionization <br /> detector to determine the hydrocarbon composition and an electron capture detector to measure the lead <br /> alkyl isomer distribution Chevron's marker was measured by a proprietary method Oxygenates were <br /> analyzed by ASTM method D4815 <br />• Analyzed by N Dhoot <br /> Reported by E A Harvey C—L4 <br /> Reviewed by M Moir �—CIL— <br /> BI-Hunter <br /> A WVerstuyft <br /> NDhoot <br /> EAHarvey <br /> Technical Files <br /> ECTfile <br />