TrusTec® Toluene Standard Fuel 89.3 is a primary reference fuel with 70% toluene and 30% n-heptane for ASTM D-2699 and ASTM D-270 octane fuel analysis.
TrusTec® Toluene Standard Fuel 89.3 is a primary reference fuel that meets the requirements outlined in ASTM D-2699 and ASTM D-2700 to determine octane rating. This reference fluid is a blend of 70% toluene and 30% n-heptane, and is intended for use in calibrating knock engines for fuel analysis.
Composition, vol %:
n-Heptane: 29.7–30.3
Toluene: 69.7–70.3
Specific gravity at 60/60 °F: 0.8247–0.8167
Meets ASTM D-2699 and D-2700 specifications
Composed of 70% toluene
Refineries and test laboratories need high-quality reference fluids to calibrate their test engines during fuel analysis to ensure the measured octane number is accurate.
Fuel octane analysis
Oil refineries
Laboratory testing
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