reid vapor pressure การใช้

• Thus, oil refineries manipulate the Reid Vapor Pressure seasonally specifically to maintain gasoline engine reliability.
• Gasoline BTU varies relating to the Reid vapor pressure ( causing easier vaporization in winter blends, for easier starting ) and anti-knock additives.
• Variation in the RVP ( Reid vapor pressure ) specification for gasoline between countries and between seasons dramatically impacts the amount of butane streams that can be blended directly into gasoline.
• The amendments also established new auto gasoline reformulation requirements, set Reid vapor pressure ( RVP ) standards to control evaporative emissions from gasoline, and mandated new gasoline formulations sold from May to September in many states.
• The true vapor pressure ( TVP ) at 100 癋 differs slightly from the Reid vapor pressure ( RVP ) ( per definition also at 100 癋 ), as it excludes dissolved fixed gases such as air.