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Reid vapor pressure (RVP) is a common measure of the volatility of gasoline and other petroleum products. [1] It is defined as the absolute vapor pressure exerted by the vapor of the liquid and any dissolved gases/moisture at 37.8 °C (100 °F) as determined by the test method ASTM-D-323, which was first developed in 1930 [2] and has been revised several times (the latest version is ASTM D323 ...
The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water: if its API gravity is greater than 10, it is lighter and floats on water; if less than 10, it is heavier and sinks.
True vapor pressure (TVP) is a common measure of the volatility of petroleum distillate fuels. It is defined as the equilibrium partial pressure exerted by a volatile organic liquid as a function of temperature as determined by the test method ASTM D 2879.
Relative volatility is a measure comparing the vapor pressures of the components in a liquid mixture of chemicals. This quantity is widely used in designing large industrial distillation processes. [ 1 ] [ 2 ] [ 3 ] In effect, it indicates the ease or difficulty of using distillation to separate the more volatile components from the less ...
Fuel pricing software is intended to replace manual or spreadsheet-based processes that could delay the update of fuel costs and jeopardize profit margins. Delayed updates of fuels costs can cause fuel buyers to pay more than necessary, with day-to-day price swings occurring at 3 cents nearly 50% of the time and 5 cents at just over 25%. [8]
U.S. gasoline prices rose earlier this month but are falling again after West Coast refinery outages subsided and seasonal demand fell. President Joe Biden plans to sell the last portion of a ...
"And I've been putting out fireWith gasoline"-- "Cat People (Putting Out Fire)," by David Bowie I don't imagine that Bowie achieved much with that strategy, ...
In chemistry, volatility is a material quality which describes how readily a substance vaporizes. At a given temperature and pressure, a substance with high volatility is more likely to exist as a vapour, while a substance with low volatility is more likely to be a liquid or solid.