What Is Rvp In Gasoline

Rvp is not.

What is rvp in gasoline.

The more volatile a gasoline higher rvp the easier it evaporates. Rvp is an abbreviation for reid vapor pressure a common measure of and generic term for gasoline volatility. A particular fuel blend s rvp is based on the combined rvp of the ingredients that make up the blend. Because the fuel rule was retained as a contingency measure it remains on the boutique fuel list.

The pressure is exerted at a specific temperature that is 100 degrees fahrenheit. Alabama rvp of 7 0 psi. Rvp is the vapor pressure of gasoline measured at 100 degrees fahrenheit. Reid vapor pressure is measured in gauge pressure and is stated in psi units.

Reid vapor pressure rvp is a common measure of the volatility of gasoline and other petroleum products. See 77 fr 23619 april. Reid vapor pressure is the pressure exerted by a liquid to calculate the volatile nature of gasoline. It is determined by a test known as astm d 323.

Regulators worry about this evaporation because it contributes to ozone formation. Rvp is a measure of how easily the fuel evaporates at a given temperature. Implementation of alabama s 7 0 psi gasoline rvp rule was suspended when epa approved alabama s request to move the rule to the contingency measure portion of the sip for the birmingham area. Fuels with higher rvp evaporate more easily than those with lower rvp.

Epa regulates the vapor pressure of gasoline sold at retail stations during the summer ozone season june 1 to september 15 to reduce evaporative emissions from gasoline that contribute to ground level ozone and diminish the effects.