GB 17820-2018 Natural gas

GB 17820-2012 Natural gas

GB 50494 GB/T 11060.1-1998 Natural gas—Determination of hydrogen sulfide content—Iodometric titration method GB/T 11060.1-2010 Natural gas—Determination of sulfur compound—Part 1:Determination of hydrogen sulfide content by iodometric titration method GB/T 11060.1-2023 Natural gas—Determination of sulfur compound—Part 1:Determination of hydrogen sulfide content by iodometric titration method GB/T 11060.2-1998 Natural gas—Determination of hydrogen sulfide content—Methylene blue method GB/T 11060.2-2008 Natural gas—Determination of sulfur compound—Part 2:Determination of hydrogen sulfide content by methylene blue method GB/T 11060.2-2023 Natural gas—Determination of sulfur compound—Part 2:Determination of hydrogen sulfide content by methylene blue method GB/T 11060.3-2010 Natural gas—Determination of sulfur compound—Part 3:Determination of hydrogen sulfide content by lead acetate reaction rate dual photo path method GB/T 11060.3-2018 Natural gas—Determination of sulfur compound—Part 3:Determination of hydrogen sulfide content by lead acetate reaction rate dual photo path method GB/T 11060.4-2010 Natural gas—Determination of sulfur compound—Part 4:Determination of total sulfur content by oxidative microcoulometry method GB/T 11060.4-2017 Natural gas—Determination of sulfur compound—Part 4:Determination of total sulfur content by oxidative microcoulometry method GB/T 11060.5-2010 Natural gas—Determination of sulfur compound—Part 5:Determination of total sulfur content by hydrogenolysis and rateometric colorimetry method GB/T 11060.8-2012 Natural gas—Determination of sulfur compound—Part 8:Determination of total sulfur content by ultraviolet fluorescence method GB/T 11060.8-2020 Natural gas—Determination of sulfur compounds—Part 8:Determination of total sulfur content by ultraviolet fluorescence method GB/T 11060.10-2014 Natural gas—Determination of sulfur compounds—Part 10:Determination of sulfur compounds using gas chromatography method GB/T 11060.10-2021 Natural gas—Determination of sulfur compounds—Part 10:Determination of sulfur compounds using gas chromatography method GB/T 11062-1998 Natural gas—Calculation of calorific values, density, relative density and Wobbe index from composition GB/T 11062-2014 Natural gas—Calculation of calorific values,density,relative density and Wobbe index GB/T 11062-2020 Natural gas—Calculation of calorific values,density,relative density and Wobbe indices from composition GB/T 13609-1999 Natural gas—Sampling guidelines GB/T 13609-2012 Natural gas sampling guidelines GB/T 13609-2017 Natural gas sampling guidelines GB/T 13610-2003 Analysis of natural gas by gas Chromatography GB/T 13610-2014 Analysis of natural gas composipion—Gas chromatography GB/T 13610-2020 Analysis of natural gas composition—Gas chromatography GB/T 27894.1-2011 Natural gas—Determination of composition with defined uncertainty by gas chromatogramphy—Part 1:Guidelines for tailored analysis GB/T 27894.1-2020 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 1:General guidelines and calculation of composition GB/T 27894.2-2011 Natural gas—Determination of composition with defined uncertainty by gas chromatography—Part 2:Measuring-system characteristics and statistics for processing of data GB/T 27894.2-2020 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 2:Uncertainty calculations GB/T 27894.3-2011 Natrual gas—Determination of composition with defined uncertainty by gas chromatography—Part 3:Determination of hydrogen,helium,oxyen,nitrogen,carbon dioxide and hydrocarbons up to C8 using two packed columns GB/T 27894.3-2023 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 3:Precision and bias GB/T 27894.4-2012 Natural gas—Determination of composition with defined uncertainty by gas chromatography—Part 4:Determination of nitrogen,carbon dioxide and C1 to C5 and C+6 hydrocarbons for a laboratory and on-line measuring system using two columns GB/T 27894.5-2012 Natural gas—Determination of composition with defined uncertainty by gas chromatography—Part 5:Determination of nitrogen,carbon dioxideand C1 to C5 and C+6 hydrocarbons for a laboratory and on-line process application using three columns GB/T 27894.6-2012 Natural 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 columns GB/T 30490-2014 The method for automatic sampling of natural gas GB/Z 33440-2016 General requirements for interchangeability of natural gas entering long-distance pipeline network GB/T 33440-2021 General requirements for interchangeability of natural gas GB/T 27894.7-2025 Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 7:Rapid determination of helium content using two packed columns GB/T 13609-2025 Natural gas—Gas sampling GB/T 27894.8-2026 Natural gas—Determination of composition and associated uncertainty by gaschromatography—Part 8:Determination of hydrogen oxygen nitrogen carbonmonoxide carbon dioxide and C1 to C5 and C+6 hydrocarbons by micro-cellthermal conductivity detector