DIN EN ISO 20765-1:2018

Natural gas - Calculation of thermodynamic properties - Part 1: Gas phase properties for transmission and distribution applications (ISO 20765-1:2005); German version EN ISO 20765-1:2018

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标准号

DIN EN ISO 20765-1:2018

发布日期

2018年12月

实施日期

废止日期

无

国际标准分类号

75.060

发布单位

德国标准化学会

引用标准

DIN EN ISO 12213-2:2010 DIN EN ISO 14532:2017 DIN EN ISO 6976:2016 ISO 12213-2:2006 ISO 14532:2014 ISO 31-3:1992 ISO 31-4:1992 ISO 6976:2016 ISO 7504:2015

被代替标准

DIN EN ISO 20765-1:2016

适用范围

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.

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