For Jet A liquid between 40 and 60 degrees Celsius (102 to 140 Fahrenheit), the maximum pressure is about 4 to 4-1/2 times the normal atmospheric pressure of 14.7 psi. A code has been formulated which, using the above results, calculates the evaporation rates of binary mixtures of hydrocarbons. What is the vapor pressure in mmHg of the hydrocarbon at 100 o C? That complex mixtures of hydrocarbons when examined experimentally often conform to such a functional form is well known. each chart the pressure range is from 10 psia to 1000 psia and the temperature range is from 40 ✯ to 500 ✯. Vapor Pressure of Crude Oils - ASTM D6377. The vapor pressure is a property of the substance and is constant at a given temperature. The following chart (by McKetta and Wehe) acceptably correlates the water content of hydrocarbon gases as a function of temperature and pressure. This holds especially true as various countries begin to phase out the ever common HFC refrigerants such as R-404A and R-134a. We explain the opera-tion of the system and present results from measurement Therefore, as with all products with a vapor density greater than 1.0, gasoline vapor s will seek low levels or remain We can solve vapor pressure problems in either of two ways: by using Equation 13.6.1 to calculate the actual vapor pressure above a solution of a nonvolatile solute, or by using Equation 13.6.4 to calculate the decrease in vapor pressure caused by a specified amount of a nonvolatile solute. Montemayor, Imperial Oil Ltd., Sarnia, Ontario, Canada.
Foreword THIS PUBLICATION, Manual on Distillation and Vapor Pressure Measurement in Petroleum Products, was spon- sored by ASTM International Committee D02 on Petroleum Products and Lubricants, and edited by Rey G.