Registration number (WIID)Project No.TitleStatus
68633ISO/PWI 6974-4Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 4: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columnsIzstrādē
94790ISO 12213-2:2006/AWI Amd 1Natural gas — Calculation of compression factor — Part 2: Calculation using molar-composition analysis — Amendment 1Izstrādē
85277ISO/PWI 6976.2Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from compositionIzstrādē
35533ISO/WD 20765Natural gas — Thermodynamic propertiesIzstrādē
37083ISO/WD TR 24094Analysis of natural gas — Validation of calibration gases using reference measurements of physical propertiesIzstrādē
41690ISO/NP 20765-3Natural gas-Calculation of thermodynamic properties-Part — Part 3: Two-phase properties (vapour-liquid equilibria)Izstrādē
44109ISO/NP 6974-3Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columnsIzstrādē
25107ISO/WD 6326-3Natural gas — Determination of sulfur compounds — Part 3: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometryIzstrādē
73969ISO/PWI 22813Liquefied Natural Gas, Determination of composition and associated uncertainty by sensor technologyIzstrādē
91570ISO/WD 6978-2Natural gas — Determination of mercury — Part 2: Sampling of mercury by amalgamation with detection by atomic fluorescence or atomic absorption spectrometryIzstrādē
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