Registration number (WIID)Project No.TitleStatus
68635ISO/PWI 6974-6Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columnsIzstrādē
37009ISO/WD 23874Natural gas — Analytical requirements for hydrocarbon content/dew point calculationIzstrādē
42173ISO 12213-3:1997/DAmd 1Natural gas — Calculation of compression factor — Part 3: Calculation using physical properties — Amendment 1Izstrādē
33716ISO/DIS 6978-1Natural gas — Determination of mercury — Part 1: Principles and general requirementsIzstrādē
42171ISO 12213-1:1997/DAmd 1Natural gas — Calculation of compression factor — Part 1: Introduction and guidelines — Amendment 1Izstrādē
68634ISO/PWI 6974-5Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 5: Isothermal method for nitrogen, carbon dioxide, C1 to C5 hydrocarbons and C6+ hydrocarbonsIzstrādē
42003ISO/NP 24074Natural gas — Automated online gas chromatographic method for hydrocarbon dew-point calculationIzstrādē
44110ISO/NP 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 packed columnsIzstrādē
68631ISO/PWI 20765-3Natural gas-Calculation of thermodynamic properties-Part — Part 3: Two-phase properties (vapour-liquid equilibria)Izstrādē
44112ISO/NP 6976Natural gas — Calculation of calorific value, density, relative density and Wobbe index from compositionIzstrādē
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