GB/T 30491.1-2014 Active National standards

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

Publish Date: 2014-02-19 Implement Date: 2014-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 30491.1-2014

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Natural gas

ICS Name: Natural gas

Publish Date: 2014-02-19

Implement Date: 2014-06-01

Pages: 42 pages

Scope

This part of GB/T 30491 specifies the calculation methods for the volumetric and thermal properties of natural gas, natural gas containing artificial additives, and other similar mixtures when they exist only in a gaseous state.
This part is applicable to gas transmission and distribution processes within a certain pressure (p) and temperature (T) range. For volumetric properties (compression factor and density), the calculation uncertainty is approximately ±0.1% (95% confidence interval). For thermal properties [such as enthalpy, heat capacity, Joule–Thomson coefficient, and sound velocity], the calculation uncertainty is generally greater.