API 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)
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)