API MPMS Chapter 14.4 – Natural Gas Fluids Measurement – Converting Mass of Natural Gas Liquids and Vapors to Equivalent Liquid Volumes, Second Edition
API MPMS Chapter 14.4 prescribes a method for calculating liquid volumes at equilibrium pressures and at temperatures of 60 °F, 15 °C, and 20 °C from the mass of a natural gas fluid (liquid or vapor) measured at operating conditions, in conjunction with a representative compositional analysis and published values for each component’s molar mass and absolute density.
