ISO 12213-2:2006 PDF

Scope: ISO 12213 specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthitic admixture and similar mixtures at conditions under which the mixture can exist only as a gas. This part of ISO 12213 specifies a method for the calculation of compression factors when the detailed composition of the gas by mole fractions is known, together with the relevant pressures and temperatures. The method is applicable to pipiline quality gases within the ranges of pressure p and temperature T at which transmission and distribution operations normally take place, with an uncertainty of about 0,1％. It can be applied, with greater uncertainty, to wider range of gas composition, pressure and temperature (see Annex E). More detail concerning the scope and field of application of the method is given in ISO 12213-1.

ISO 12213-2:2006 Referenced Document

ISO 12213-1 Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines
ISO 6976 Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition*， 2016-08-01 Update
ISO 80000-4 Quantities and units — Part 4: Mechanics — Amendment 1
ISO 80000-5 Quantities and units — Part 5: Thermodynamics — Amendment 1

2006 ISO 12213-2:2006 Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis
1997 ISO 12213-2:1997 Natural gas - Calculation of compression factor - Part 2: Calculation using molar composition analysis