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TrusTec® PRF Octane Blend No. 82 is a primary reference fuel with 82% isooctane and 28% n-heptane used in determining octane rating.
TrusTec® PRF Octane Blend 82 is a primary reference fuel used to determine octane rating, and meets the requirements outlined in ASTM D-2699 and ASTM D-2700. The reference fuel is composed of 82% isooctane and 28% n-heptane.
Specific gravity at 60/60 °F: 0.6940–0.6960
Composition, vol %:
Isooctane: 81.70–82.30
n-Heptane: 17.70–18.30
Oil refiners and laboratories require a reliable reference fuel for measuring gasoline octane value.
Oil refining
Gasoline octane testing
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