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TrusTec® PRF Octane Blend No. 94 is a primary reference fuel with 94% isooctane and 6% n-heptane used to determine octane rating.
Specific Gravity at 60/60 °F: 0.6950 – 0.6970
Composition, vol %:
Isooctane: 93.70 – 94.30
n-Heptane: 5.70 – 6.30
Conor Robertson, Technical Specialist
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TrusTec® PRF Octane Blend No. 94 primary reference fuel meets the requirements outlined in ASTM D-2699 and ASTM D-2700 to test octane rating. The reference fuel is composed of 94% isooctane and 6% n-heptane.
Refineries and laboratories need a reliable means to test the octane value of gasoline.
Oil refining
Gasoline octane testing
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