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GB/T 13610-2020   Analysis of natural gas composition—Gas chromatography (English Version)
Standard No.: GB/T 13610-2020 Status:valid remind me the status change

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Standard No.: GB/T 13610-2020
English Name: Analysis of natural gas composition—Gas chromatography
Chinese Name: 天然气的组成分析 气相色谱法
Chinese Classification: E24    Natural gas
Professional Classification: GB    National Standard
Issued by: SAMR; SAC
Issued on: 2020-09-29
Implemented on: 2021-4-1
Status: valid
Superseding:GB/T 13610-2014 Analysis of natural gas by gas chromatography
Language: English
File Format: PDF
Word Count: 12500 words
Price(USD): 375.0
Delivery: via email in 1 business day
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 13610-2014 Analysis of Natural Gas Composition — Gas Chromatography. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 13610-2014: — The "carbon monoxide" component in the "Scope" is added, the concentration range is "0.01% ~ 1%" (see Clause 1); — The requirement of standard gas concentration is changed to "for components with mole fraction not more than 5%, compared with the sample, the mole fraction of the corresponding components in the standard gas shall not exceed 10% and not less than 1/2 of the concentration of the corresponding components in the sample. For components with mole fraction greater than 5%, the concentration of the corresponding component in the standard gas shall not be less than 1/2 of the concentration of the component in the sample, nor more than 2 times of the concentration of the component. The minimum concentration of components in standard gas should not be less than 0.1% " (See 4.2, 4.2 of Edition 2014). — The expression of precision is modified. The boundary point of the concentration range of components is changed from discontinuous to continuous but not crossed. For example, the boundary points "0 ~ 0.09" and "0.1 ~ 0.9" are changed to "x < 0.1" and "0.1 ≤ x < 1.0" (See Clause 8, Clause 8 of Edition 2014). This standard was proposed by and is under the jurisdiction of China Natural Gas Standardization Technology Committee (SAC/TC 244). The previous editions of standards replaced by this standard are as follows: — GB/T 13610-1992, GB/T 13610-2003, and GB/T 13610-2014. Analysis of natural gas composition — Gas chromatography Warning — This standard does not address all safety issues related to its application. It is the responsibility of the users to prepare the corresponding safety and health operation rules and define the application scope before using this standard. 1 Scope This standard specifies the analytical method for determining the chemical composition of natural gas and similar gas mixtures by gas chromatography. This standard is applicable to the analysis of natural gas component range as shown in Table 1, and also applicable to the determination of one or several components. Table 1 Component and concentration range of natural gas Component Concentration range Mole fraction y/% Helium 0.01 ~ 10 Hydrogen 0.01 ~ 10 Oxygen 0.01 ~ 20 Nitrogen 0.01 ~ 100 Carbon dioxide 0.01 ~ 100 Methane 0.01 ~ 100 Ethane 0.01 ~ 100 Propane 0.01 ~ 100 Isobutane 0.01 ~ 10 N-butane 0.01 ~ 10 Neopentane 0.01 ~ 2 Isopentane 0.01 ~ 2 N-pentane 0.01 ~ 2 Hexane 0.01 ~ 2 Heptane and heavier components 0.01 ~ 1 Carbon monoxide a 0.01 ~ 1 Hydrogen sulfide 0.3 ~ 30 a Conventional natural gas generally does not contain carbon monoxide components, and carbon monoxide components that may be contained in special samples such as synthetic natural gas may be detected by the method specified in this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendments) applies. GB/T 5274.1 Gas analysis — Preparation of calibration gas mixtures — Part 1: Gravimetric method for class I mixtures GB/T 28766 Natural gas — Performance evaluation for analytical systems 3 Method summary Representative natural gas samples (hereinafter referred to as gas samples) and standard gas mixtures with known composition (hereinafter referred to as standard gas) are separated by gas chromatography under the same operating conditions. Many heavier components in the gas samples may obtain a group of irregular peaks by changing the direction of the carrier gas flowing through the column at a certain time. This group of heavier components may be C5 and heavier components, C6 and heavier components or C7 and heavier components. According to the composition value of the standard gas, the corresponding composition of the gas sample may be calculated by comparing the peak height, peak area or both. See Annex A for supplementary analytical methods of heavier components of natural gas. 4 Reagents and materials 4.1 Carrier gas 4.1.1 Helium or hydrogen The purity of hydrogen or helium shall not be less than 99.99%. 4.1.2 Nitrogen or argon The purity of nitrogen or argon shall not be less than 99.99%. 4.2 Standard gas The standard gas needed for analysis may adopt national secondary reference materials or be prepared according to GB/T 5274.1. Diluted dry air is a suitable reference material in the analysis of oxygen and nitrogen components. All components of standard gas shall be in homogeneous gas state. For components with mole fraction not more than 5%, compared with the sample, the mole fraction of the corresponding components in the standard gas shall not be more than 10% and not less than 1/2 of the concentration of the corresponding components in the sample. For components with mole fraction greater than 5%, the concentration of the corresponding component in the standard gas shall not be less than 1/2 of the concentration of the component in the sample, nor more than 2 times of the concentration of the component. The minimum concentration of components in standard gas should not be less than 0.1%. 5 Instruments and apparatus 5.1 Detector Choose a thermal conductivity detector, or a detector that is equivalent in terms of sensitivity and stability. It is required that 0.25 mL of gas sample with 1% mole fraction of n-butane shall be injected, and at least 0.5 mV signal shall be generated. 5.2 Sample injection system Materials that are inert and non-absorbent to the components in the gas samples shall be adopted, and stainless steel shall be preferred. The sample injection system shall be equipped with an injection valve with a quantitative tube with a volume of 0.25 mL ~ 2 mL and an inner diameter of 2 mm. If the inner diameter is less than 2 mm, the quantitative tube shall be equipped with a heater. For injection under vacuum, the pipeline arrangement shown in Figure 1 may be selected. Figure 1 Pipeline arrangement used for injection under vacuum 5.3 Control of column temperature When operating at constant temperature, the column temperature remains constant, and its variation shall be within 0.3°C. During temperature programming mode, the column temperature shall not exceed the recommended temperature limit of the filler in the column. 5.4 Temperature control of detector In the whole process of analysis, the detector temperature shall be equal to or higher than the highest column temperature, and keep constant, and its variation shall be within 0.3°C. 5.5 Control of carrier gas In the whole process of analysis, the flow rate of carrier gas remains constant, and its variation shall be within 1%. 5.6 Chromatographic column 5.6.1 General requirements The material of the chromatographic column shall be inert and non-adsorbent to the components in the gas sample, and stainless steel tubes shall be preferred. The separation of the components being tested by the column filler shall be able to meet the specified requirements. See Annex B for the arrangement of chromatographic diagram. 5.6.2 Adsorption column Oxygen, nitrogen, methane and carbon monoxide can be completely separated, and the separation R shall be greater than or equal to 1.5, which is calculated according to Equation (1). Figures 2 and 3 are a typical chromatogram obtained by using an adsorption column.
Foreword i 1 Scope 2 Normative references 3 Method summary 4 Reagents and materials 5 Instruments and apparatus 6 Operation steps 7 Calculation 8 Precision Annex A (Normative) Supplementary methods Annex B (Informative) Arrangement of chromatographic column Annex C (Normative) Preparation of desiccator and removal of hydrogen sulfide Annex D (Informative) Common errors and precautions Annex E (Informative) Calculation examples
Referred in GB/T 13610-2020:
*GB/T 5274.1-2018 Gas analysis—Preparation of calibration gas mixtures—Part 1:Gravimetric method for class Ⅰ mixtures
*GB/T 28766-2018 Natural gas—Performance evaluation for analytical systems
*GB/T 95-2002 Plain washers - Product grade C
*GB/T 2664-2009 Mens suits and coats
*GB 4706.1-2005 Household and Similar Electrical Appliances – Safety - Part 1: General Requirements
*GB 17625.1-2022 Electromagnetic compatibility—Limits—Part 1: Limits for harmonic current emissions (equipment input current ≤ 16A per phase)
*GB/T 14048.5-2017 Low-voltage switchgear and controlgear-Part 5-1:Control circuit devices and switching element-Electromechanical control circuit devices
*GB 17625.1-2022 Electromagnetic compatibility—Limits—Part 1: Limits for harmonic current emissions (equipment input current ≤ 16A per phase)
*QB/T 1333-2018 Handbag and Knapsack
*GB 2762-2022 National Food Safety Standard - Maximum Levels of Contaminants in Foods
*GB/T 22849-2014 Knitted T-shirt
*GB 5749-2022 Standards for drinking water quality
*GB 14748-2006 Safety Requirements for Wheeled Child Conveyances
*GB/T 1591-2018 High strength low alloy structural steels
*GB 4943.1-2011 Information technology equipment -Safety - Part 1: General requirements
*GB 2763-2021 National Food Safety Standard-Maximum Residue Limits for Pesticides in Food
GB/T 13610-2020 is referred in:
*GB/T 32151.10-2015 Requirements of the greenhouse gas emissions accounting and reporting―Part 10:Chemical production enterprise
*GB/T 38753-2020 Liquefied natural gas
*GB 17820-2018 Natural gas
*SY/T 5922-2003 Run criterion of natural gas pipeline
*GB/T 10180-2017 Thermal performance test code for industrial boilers
*GB 18047-2017 Compressed natural gas as vehicle fuel
*GB/T 18604-2023 Measurement of natural gas flow by gas ultrasonic flow meters
*GB 50389-2006 Code for construction and acceptance of 750kV overhead transmission line
*YY/T 1240-2014 D-Dimer reagent (kit)
*GB/T 43687-2024 Technical requirements for compressed air energy storage system used for electrical energy storage
*GB/T 33296-2025 Quality requirements and test methods for shale gas products
*GB/T 32865-2025 Quality requirements and test methods for tight sandstone gas products
Code of China
Standard
GB/T 13610-2020  Analysis of natural gas composition—Gas chromatography (English Version)
Standard No.GB/T 13610-2020
Statusvalid
LanguageEnglish
File FormatPDF
Word Count12500 words
Price(USD)375.0
Implemented on2021-4-1
Deliveryvia email in 1 business day
Detail of GB/T 13610-2020
Standard No.
GB/T 13610-2020
English Name
Analysis of natural gas composition—Gas chromatography
Chinese Name
天然气的组成分析 气相色谱法
Chinese Classification
E24
Professional Classification
GB
ICS Classification
Issued by
SAMR; SAC
Issued on
2020-09-29
Implemented on
2021-4-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 13610-2014 Analysis of natural gas by gas chromatography
Language
English
File Format
PDF
Word Count
12500 words
Price(USD)
375.0
Keywords
GB/T 13610-2020, GB 13610-2020, GBT 13610-2020, GB/T13610-2020, GB/T 13610, GB/T13610, GB13610-2020, GB 13610, GB13610, GBT13610-2020, GBT 13610, GBT13610
Introduction of GB/T 13610-2020
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This standard is developed in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 13610-2014 Analysis of Natural Gas Composition — Gas Chromatography. In addition to editorial changes, the following main technical changes have been made with respect to GB/T 13610-2014: — The "carbon monoxide" component in the "Scope" is added, the concentration range is "0.01% ~ 1%" (see Clause 1); — The requirement of standard gas concentration is changed to "for components with mole fraction not more than 5%, compared with the sample, the mole fraction of the corresponding components in the standard gas shall not exceed 10% and not less than 1/2 of the concentration of the corresponding components in the sample. For components with mole fraction greater than 5%, the concentration of the corresponding component in the standard gas shall not be less than 1/2 of the concentration of the component in the sample, nor more than 2 times of the concentration of the component. The minimum concentration of components in standard gas should not be less than 0.1% " (See 4.2, 4.2 of Edition 2014). — The expression of precision is modified. The boundary point of the concentration range of components is changed from discontinuous to continuous but not crossed. For example, the boundary points "0 ~ 0.09" and "0.1 ~ 0.9" are changed to "x < 0.1" and "0.1 ≤ x < 1.0" (See Clause 8, Clause 8 of Edition 2014). This standard was proposed by and is under the jurisdiction of China Natural Gas Standardization Technology Committee (SAC/TC 244). The previous editions of standards replaced by this standard are as follows: — GB/T 13610-1992, GB/T 13610-2003, and GB/T 13610-2014. Analysis of natural gas composition — Gas chromatography Warning — This standard does not address all safety issues related to its application. It is the responsibility of the users to prepare the corresponding safety and health operation rules and define the application scope before using this standard. 1 Scope This standard specifies the analytical method for determining the chemical composition of natural gas and similar gas mixtures by gas chromatography. This standard is applicable to the analysis of natural gas component range as shown in Table 1, and also applicable to the determination of one or several components. Table 1 Component and concentration range of natural gas Component Concentration range Mole fraction y/% Helium 0.01 ~ 10 Hydrogen 0.01 ~ 10 Oxygen 0.01 ~ 20 Nitrogen 0.01 ~ 100 Carbon dioxide 0.01 ~ 100 Methane 0.01 ~ 100 Ethane 0.01 ~ 100 Propane 0.01 ~ 100 Isobutane 0.01 ~ 10 N-butane 0.01 ~ 10 Neopentane 0.01 ~ 2 Isopentane 0.01 ~ 2 N-pentane 0.01 ~ 2 Hexane 0.01 ~ 2 Heptane and heavier components 0.01 ~ 1 Carbon monoxide a 0.01 ~ 1 Hydrogen sulfide 0.3 ~ 30 a Conventional natural gas generally does not contain carbon monoxide components, and carbon monoxide components that may be contained in special samples such as synthetic natural gas may be detected by the method specified in this standard. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendments) applies. GB/T 5274.1 Gas analysis — Preparation of calibration gas mixtures — Part 1: Gravimetric method for class I mixtures GB/T 28766 Natural gas — Performance evaluation for analytical systems 3 Method summary Representative natural gas samples (hereinafter referred to as gas samples) and standard gas mixtures with known composition (hereinafter referred to as standard gas) are separated by gas chromatography under the same operating conditions. Many heavier components in the gas samples may obtain a group of irregular peaks by changing the direction of the carrier gas flowing through the column at a certain time. This group of heavier components may be C5 and heavier components, C6 and heavier components or C7 and heavier components. According to the composition value of the standard gas, the corresponding composition of the gas sample may be calculated by comparing the peak height, peak area or both. See Annex A for supplementary analytical methods of heavier components of natural gas. 4 Reagents and materials 4.1 Carrier gas 4.1.1 Helium or hydrogen The purity of hydrogen or helium shall not be less than 99.99%. 4.1.2 Nitrogen or argon The purity of nitrogen or argon shall not be less than 99.99%. 4.2 Standard gas The standard gas needed for analysis may adopt national secondary reference materials or be prepared according to GB/T 5274.1. Diluted dry air is a suitable reference material in the analysis of oxygen and nitrogen components. All components of standard gas shall be in homogeneous gas state. For components with mole fraction not more than 5%, compared with the sample, the mole fraction of the corresponding components in the standard gas shall not be more than 10% and not less than 1/2 of the concentration of the corresponding components in the sample. For components with mole fraction greater than 5%, the concentration of the corresponding component in the standard gas shall not be less than 1/2 of the concentration of the component in the sample, nor more than 2 times of the concentration of the component. The minimum concentration of components in standard gas should not be less than 0.1%. 5 Instruments and apparatus 5.1 Detector Choose a thermal conductivity detector, or a detector that is equivalent in terms of sensitivity and stability. It is required that 0.25 mL of gas sample with 1% mole fraction of n-butane shall be injected, and at least 0.5 mV signal shall be generated. 5.2 Sample injection system Materials that are inert and non-absorbent to the components in the gas samples shall be adopted, and stainless steel shall be preferred. The sample injection system shall be equipped with an injection valve with a quantitative tube with a volume of 0.25 mL ~ 2 mL and an inner diameter of 2 mm. If the inner diameter is less than 2 mm, the quantitative tube shall be equipped with a heater. For injection under vacuum, the pipeline arrangement shown in Figure 1 may be selected. Figure 1 Pipeline arrangement used for injection under vacuum 5.3 Control of column temperature When operating at constant temperature, the column temperature remains constant, and its variation shall be within 0.3°C. During temperature programming mode, the column temperature shall not exceed the recommended temperature limit of the filler in the column. 5.4 Temperature control of detector In the whole process of analysis, the detector temperature shall be equal to or higher than the highest column temperature, and keep constant, and its variation shall be within 0.3°C. 5.5 Control of carrier gas In the whole process of analysis, the flow rate of carrier gas remains constant, and its variation shall be within 1%. 5.6 Chromatographic column 5.6.1 General requirements The material of the chromatographic column shall be inert and non-adsorbent to the components in the gas sample, and stainless steel tubes shall be preferred. The separation of the components being tested by the column filler shall be able to meet the specified requirements. See Annex B for the arrangement of chromatographic diagram. 5.6.2 Adsorption column Oxygen, nitrogen, methane and carbon monoxide can be completely separated, and the separation R shall be greater than or equal to 1.5, which is calculated according to Equation (1). Figures 2 and 3 are a typical chromatogram obtained by using an adsorption column.
Contents of GB/T 13610-2020
Foreword i 1 Scope 2 Normative references 3 Method summary 4 Reagents and materials 5 Instruments and apparatus 6 Operation steps 7 Calculation 8 Precision Annex A (Normative) Supplementary methods Annex B (Informative) Arrangement of chromatographic column Annex C (Normative) Preparation of desiccator and removal of hydrogen sulfide Annex D (Informative) Common errors and precautions Annex E (Informative) Calculation examples
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Keywords:
GB/T 13610-2020, GB 13610-2020, GBT 13610-2020, GB/T13610-2020, GB/T 13610, GB/T13610, GB13610-2020, GB 13610, GB13610, GBT13610-2020, GBT 13610, GBT13610