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TrusTec® PRF Octane Blend No. 86 is a primary reference fuel with 86% isooctane and 14% n-heptane used in determining octane rating.
TrusTec® PRF Octane Blend 80 primary reference fuel meets the specifications of ASTM D-2699 and ASTM D-2700 in determining the octane rating of fuel.
Specific Gravity at 60/60 °F: 0.6940 – 0.6960
Composition, vol %
Isooctane: 85.70 – 86.30
n -Heptane: 13.70 – 14.30
Volatile or Fluctuating Octane Levels in Reference Fuel
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