ISO 20765-1:2005
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The latest, up-to-date edition.
Natural gas Calculation of thermodynamic properties Part 1: Gas phase properties for transmission and distribution applications
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09-09-2005
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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.
| DevelopmentNote |
Supersedes ISO/DIS 20765-1 (09/2005)
|
| DocumentType |
Standard
|
| Pages |
42
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| DS/EN ISO 20765-1:2018 | Identical |
| I.S. EN ISO 20765-1:2018 | Identical |
| SS-EN ISO 20765-1:2018 | Identical |
| SN EN ISO 20765-1 : 2019 | Identical |
| UNI EN ISO 20765-1 : 2018 | Identical |
| SAC GB/T 30491-1 : 2014 | Identical |
| NF ISO 20765-1 : 2014 | Identical |
| EN ISO 20765-1:2018 | Identical |
| UNE-EN ISO 20765-1:2019 | Identical |
| PN-EN ISO 20765-1:2019 | Identical |
| PN ISO 20765-1 : 2010 | Identical |
| NF EN ISO 20765-1 : 2018 | Identical |
| ÖNORM EN ISO 20765-1 : 2019 | Identical |
| NEN ISO 20765-1 : 2005 | Identical |
| BS ISO 20765-1 : 2005 | Identical |
| DIN EN ISO 20765-1:2018-12 | Identical |
| 16/30312922 DC : 0 | BS ISO 18888 - GAS TURBINE COMBINED CYCLE POWER PLANTS THERMAL PERFORMANCE TESTS |
| ISO 18888:2017 | Gas turbine combined cycle power plants — Thermal performance tests |
| PD ISO/TR 29922:2017 | Natural gas. Supporting information on the calculation of physical properties according to ISO 6976 |
| BS ISO 20765-2 : 2015 | NATURAL GAS - CALCULATION OF THERMODYNAMIC PROPERTIES - PART 2: SINGLE-PHASE PROPERTIES (GAS, LIQUID, AND DENSE FLUID) FOR EXTENDED RANGES OF APPLICATION |
| 12/30272264 DC : 0 | BS ISO 20765-2 - NATURAL GAS - CALCULATION OF THERMODYNAMIC PROPERTIES - PART 2: SINGLE-PHASE PROPERTIES (GAS, LIQUID, AND DENSE FLUID) FOR EXTENDED RANGES OF APPLICATION |
| BS ISO 18888:2017 | Gas turbine combined cycle power plants. Thermal performance tests |
| ISO/TR 29922:2017 | Natural gas Supporting information on the calculation of physical properties according to ISO 6976 |
| ISO 20765-2:2015 | Natural gas Calculation of thermodynamic properties Part 2: Single-phase properties (gas, liquid, and dense fluid) for extended ranges of application |
| ISO 6976:2016 | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition |
| ISO 14532:2014 | Natural gas — Vocabulary |
| ISO 7504:2015 | Gas analysis Vocabulary |
| ISO 12213-2:2006 | Natural gas Calculation of compression factor Part 2: Calculation using molar-composition analysis |
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