The aim of this dissertation is to quantify and analyze the possible differences caused by the application of the correction methods defined on different standards for the measurement of the volume of liquid petroleum derivatives. This correction is necessary because pressure and temperature variations can cause considerable differences between measurements made by customer and supplier, due to operational conditions variations. To standardize this measurement, it was established that all volumes used on transactions in Brazil should be corrected to a base condition (in Brazil, 20 degrees Celsius and 101.325 kPa). This work s motivation comes from the fact that the Brazilian regulation is quite old (from the 1970s). This work is an opportunity to analyze more recent correction methods. These methods can give smaller errors depending on the hypothesis adopted in its developments. Besides that, an economic impact analysis of these methods adoption in realized. To study these possible differences, the applied methodology uses statistical distributions that model the specific gravity of the products during the productive process and, in other cases, uses data collected during certain periods. Corrected specific gravity values are, then, obtained for each method. With these values at hand, some statistically relevant differences are verified. Conclusions demonstrate that these differences justify the update of Brazilian regulation with the methods contained in standards that are more recent.