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API MPMS CHAPTER 14.5(R2025)
Calculation of Gross Heating Value, Relative Density, Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures of Custody Transfer, Third Edition
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STANDARD published on 1.1.2009
The information about the standard:
Designation standards: API MPMS CHAPTER 14.5(R2025)
Publication date standards: 1.1.2009
SKU: NS-1249877
The number of pages: 50
Approximate weight : 150 g (0.33 lbs)
Country: American technical standard
Category: Technical standards API
Annotation of standard text API MPMS CHAPTER 14.5(R2025) :
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. See more
Reaffirmed: 2025
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