GB/T 30491.1-2014
Natural gas.Calculation of thermodynamic properties.Part 1:Gas phase properties for transmission and distribution applications (English Version)

Standard No.

GB/T 30491.1-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 30491.1-2014

Scope

This part of GB/T 30491 specifies the calculation methods for the volumetric and thermal properties of natural gas, natural gas containing artificial admixtures and other similar mixtures that exist only in gaseous state. This section applies to pipeline transport gas within a certain range of pressure (p) and temperature (T) during gas transmission and distribution. For volumetric properties (compressibility factor and density), the calculated uncertainties are approximately ±0.1% (95% confidence interval). For thermal properties (eg, enthalpy, heat capacity, Joule-Thomson coefficient, sound velocity), the calculated uncertainties are usually larger.

GB/T 30491.1-2014 Referenced Document

• GB 3102.3-1993 Quantities and units of mechanics
• GB 3102.4-1993 Quantities and units of heat
• GB/T 14850-2008 Gas analysis.Vocabulary
• GB/T 17747.2-2011 Natural gas.Calculation of compression factor.Part 2: Calculation using molar-composition analysis
• GB/T 20604-2006 Natural gas Vocabulary

GB/T 30491.1-2014 history

• 2014 GB/T 30491.1-2014 Natural gas.Calculation of thermodynamic properties.Part 1:Gas phase properties for transmission and distribution applications

GB/T 30491.1-2014 -All Parts