API MPMS 14.5-2009 Calculation of Gross Heating Value@ Relative Density@ Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transfer (THIRD EDITION)
This standard presents procedures for calculating@ at base conditions from composition@ the following properties of natural gas mixtures: gross heating value@ relative density (real and ideal)@ compressibility factor and theoretical hydrocarbon liquid content which in the U.S. is typically expressed as GPM@ the abbreviation for gallons of liquid per thousand cubic feet of gas. Rigorous calculation of the effect of water upon these calculations is complicated. Because this document relates primarily to custody transfer@ the water effect included is an acceptable contractual calculation. Annex A of this standard contains a detailed investigation of the effect of water and detailed derivations of the equations presented in the standard.
API MPMS 14.5-2009 history
2009API MPMS 14.5-2009 Calculation of Gross Heating Value@ Relative Density@ Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transfer (THIRD EDITION)
1996API MPMS 14.5-1996 Calculation of Gross Heating Value@ Relative Density and Compressibility Factor for Natural Gas Mixtures from Compositional Analysis (GPA STD 2172-96)
1981API MPMS 14.5-1981 Manual of Petroleum Measurement Standards Chapter 14-Natural Gas Fluids Measurement Section 5-Calculation of Gross Heating Value@ Specific Gravity@ and Compressibility of Natural Gas Mixtures from Compositional Analysis (FIRST EDITION)