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Pressure Conversion
 
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Vapour Lock Index (VLI) for RVP
RVP   Evap at 70°C (% Vol) VLI Spec
800 - 1250
Note:   VLI = 10 * (RVP, kPa) + 7 * (Evap at 70°C, %Vol)


Driveability Index (DI)
Evap @ 10% (°C) Evap @ 50% (°C) Evap @ 90% (°C) Ethanol (% Vol) DI Spec
Note:   DI = 1.5 * (10% Evap, °C) + 3 * (50% Evap, °C) + (90% Evap, °C) + 1.33 * (Ethanol % Vol)


Warm-Up Index (WUI)
Evap @ 60°C (% Vol) Evap @ 110°C (% Vol) Evap @ 160°C (% Vol) WUI Spec
112 Min
Note:   WUI = 0.7* (Evap at 60°C, %Vol) + 0.2 * (Evap at 110°C, %Vol) + (Evap @ 160 °C, %Vol)


Flexibility Volatility Index (FVI)
RVP (kPa) Evap @ 70°C (% Vol) FVI Spec
96 Max
Note:   FVI = 0.7 * (Evap @ 70°C, %Vol) + (RVP, kPa)


Vapour Liquid Ratio (VLR) V/L = 20
RVP (kPa) Evap @ 10% (°C) Evap @ 50% (°C) VLR Spec
-
Note:   V/L = 52.47 - 0.33( * RVP, kPa) + 0.20 * (Evap @ 10°C, %Vol) + 0.17 * (Evap @ 50°C, %Vol)