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TrusTec® PRF Octane Blend No. 84 is a primary reference fuel with 84% Isooctane and 16% n-Heptane used in determining Octane Rating.
TrusTec® PRF Octane Blend 84 is a primary reference fuel used in fuel testing to determine octane rating, and meets the requirements outlined in ASTM D-2699 and ASTM D-2700.
Specific Gravity at 60/60 °F : 0.6940 – 0.6960
Composition, vol %
Isooctane : 83.70 – 84.30
n -Heptane : 15.70 – 16.30
Unstable or Variable Octane Content in Standard Fuel
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