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- Chevron Phillips Chemical Reference Fuels
- PRF Octane Blends
- PRF Octane Blend No. 98
Specific Gravity at 60/60 °F :0.6950 – 0.6970
Composition, vol %
Isooctane : 97.70 – 98.30
n -Heptane : 1.70 – 2.30