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sklademVydáno: 2018-10-11
BS EN ISO 20765-1:2018
Natural gas. Calculation of thermodynamic properties Gas phase properties for transmission and distribution applications
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| Označení normy: | BS EN ISO 20765-1:2018 |
| Počet stran: | 54 |
| Vydáno: | 2018-10-11 |
| ISBN: | 978 0 580 95411 5 |
| Status: | Standard |
Popis
BS EN ISO 20765-1:2018
This standard BS EN ISO 20765-1:2018 Natural gas. Calculation of thermodynamic properties is classified in these ICS categories:
- 75.060 Natural gas
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, p, and temperature, T, 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.