Reference number
ISO 20765-1:2005
International Standard
ISO 20765-1:2005
Natural gas — Calculation of thermodynamic properties — Part 1: Gas phase properties for transmission and distribution applications
Edition 1
2005-09
Read sample
ISO 20765-1:2005
40263
Published (Edition 1, 2005)
This publication was last reviewed and confirmed in 2021. Therefore this version remains current.

ISO 20765-1:2005

ISO 20765-1:2005
40263
Language
Format
CHF 173
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Abstract

This part of ISO 20765 specifies a method of calculation for the volumetric and caloric properties of natural gases, natural gases containing synthetic admixture and similar mixtures, at conditions where the mixture can exist only as a gas.

The method is applicable to pipeline-quality gases within the ranges of pressure and temperature at which transmission and distribution operations normally take place. For volumetric properties (compression factor and density), the uncertainty of calculation is about ± 0,1 % (95 % confidence interval). For caloric properties (for example enthalpy, heat capacity, Joule-Thomson coefficient, speed of sound), the uncertainty of calculation is usually greater.

General information

  •  : Published
     : 2005-09
    : International Standard confirmed [90.93]
  •  : 1
     : 42
  • ISO/TC 193/SC 1
    75.060 
  • RSS updates

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