Natural Gas
1 Scope
This standard specifies the quality requirements, test methods and inspection rules of natural gas.
This standard is applicable to the processed commercial natural gas transported by pipelines.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 11060.1 Natural gas — Determination of sulfur compound — Part 1: Determination of hydrogen sulfide content by iodometric titration method
GB/T 11060.2 Natural gas — Determination of sulfur compound — Part 2: Determination of hydrogen sulfide content by methylene blue method
GB/T 11060.3 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 Natural gas — Determination of sulfur compound — Part 4: Determination of total sulfur content by oxidative microcoulometry method
GB/T 11060.5 Natural gas — Determination of sulfur compound — Part 5: Determination of total sulfur content by hydrogenolysis and rateometric colorimetry method
GB/T 11060.8 Natural gas — Determination of sulfur compounds — Part 8: Determination of total sulfur content by ultraviolet fluorescence method
GB/T 11060.10 Natural gas — Determination of sulfur compounds — Part 10: Determination of sulfur compounds using gas chromatography method
GB/T 11062 Natural gas — Calculation of calorific values, density, relative density and Wobbe index
GB/T 13609 Natural gas sampling guidelines
GB/T 13610 Analysis of natural gas composition — Gas chromatography
GB/T 27894
(all parts) Natural gas — Determination of composition with defined uncertainty by gas chromatography
GB/T 30490 The method for automatic sampling of natural gas
GB/Z 33440 General requirements for interchangeability of natural gas entering long-distance pipeline network
GB 50494 Technical code for city gas
3 Classification and Quality Requirements
3.1 Natural gas is classified into Classes I and II according to high calorific value, total sulfur, hydrogen sulfide and carbon dioxide content.
3.2 The quality requirements of natural gas shall comply with the quality requirements specified in Table 1.
Foreword II
1 Scope
2 Normative References
3 Classification and Quality Requirements
4 Test Methods and Inspection Rules
5 Transportation and Use
6 Implementation of This Standard
Annex A (Informative) Quality Indexes for Sulfur Content in Natural Gas in Some European and American Countries and Regions
