Density and temperature compensation in petroleum products using digital density meters
The density of a liquid depends on its temperature – and so do petroleum products. Temperature compensations allow the recalculation of the density to a target temperature ensuring a consistent base in the global trade of petroleum products.
Base conditions for the measurement of density, known as standard conditions, describe a specified set of absolute pressure and temperature at which the density measurement results need to be reported.
Legal regulations require that sales of liquid petroleum products to end customers be compensated to the legally defined base conditions.
Base conditions are often defined jurisdictionally and different specifications apply depending on the region. For example, in Europe, Canada, Australia, and South America the most commonly used base conditions are 101.325 kPa (14.696 psi) absolute for pressure and 15 °C for temperature, whereas in the USA the most commonly used base conditions are defined as 14.696 psi absolute for pressure and 60 °F for temperature.
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