TrusTec® Toluene Standard Fuel 89.3 is a primary reference fuel with 70% toluene and maximum 30% n-heptane.
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. TrusTec® Toluene Standard Fuel 89.3 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
Research Octane Number
Gas and Oil Refinery
Fuel Testing
Gasoline Octane Analysis
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