Registration number (WIID)Project No.TitleStatus
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
54983ISO/NP 10715Natural gas — Sampling guidelinesIzstrādē
37009ISO/WD 23874Natural gas — Analytical requirements for hydrocarbon content/dew point calculationIzstrādē
40212ISO/NP 21399Verifying property values of natural gas by gas chromatographyIzstrādē
83617ISO/AWI 20765-3Natural gas — Calculation of thermodynamic properties — Part 3: Two-phase properties (vapour-liquid equilibria)Izstrādē
66005ISO/WD TR 19680Natural gas — Determination of oxygen content by electrochemical analysisIzstrādē
29716ISO 6976:1995/Cor 2:1997Natural gas — Calculation of calorific values, density, relative density and Wobbe index from composition — Technical Corrigendum 2Atcelts
12620ISO 6326-4:1994Natural gas — Determination of sulfur compounds — Part 4: Gas chromatographic method using a flame photometric detector for the determination of hydrogen sulfide, carbonyl sulfide and sulfur-containing odorantsAtcelts
41509ISO 6978-2:2003/Cor 1:2004Natural gas — Determination of mercury — Part 2: Sampling of mercury by amalgamation on gold/platinum alloy — Technical Corrigendum 1Atcelts
13533ISO 6978:1992Natural gas — Determination of mercuryAtcelts
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