标准编号：ISO 12213-3:2006
中文名称：天然气 压缩系数的计算 第3部分：运用物理属性的计算
英文名称：Natural gas — Calculation of compression factor — Part 3: Calculation using physical properties
发布日期：2006-11
标准范围
ISO 12213 specifies methods for the calculation of compression factors of natural gases, natural gases containing a synthetic 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 superior calorific value, relative density and carbon dioxide content are known, together with the relevant pressures and tempertures. If hudrogen is present, as is often the case for gases with a synthetic admixture, the hydrogen content also needs to be known. The method is primarily applicable to pipeline 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％. For wider-ranging applications the uncertainty of the results increase (see Annex F). More detail concerning the scope and field of application of the method is given in ISO 12213-1.
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