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- Chevron Phillips Chemical Reference Fuels
- PRF Octane Blends
- PRF Octane Blend No. 88
Specific Gravity at 60/60 °F : 0.6940 – 0.6960
Composition, vol %
Isooctane : 87.70 – 88.30
n -Heptane : 11.70 – 12.30