GB/T 30491.1-2014 Active
GB/T 30491.1-2014 Natural gas—Calculation of thermodynamic properties—Part 1:Gas phase properties for transmission and distribution applications
Abstract
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.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 30491.1-2014 |
| CCS | Natural gas |
| ICS | Natural gas |
| Implement Date | 2014-06-01 |