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GB/T 12208-2008: Test methods of components and impurities of the manufactured gas
Status: Valid GB/T 12208: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12208-2008 | English | 779 |
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6 days [Need to translate]
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Test methods of components and impurities of the manufactured gas
| Valid |
GB/T 12208-2008
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| GB/T 12208-1990 | English | 199 |
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2 days [Need to translate]
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Determination of coal tar and dust of gas in urban area
| Obsolete |
GB/T 12208-1990
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PDF similar to GB/T 12208-2008
Basic data | Standard ID | GB/T 12208-2008 (GB/T12208-2008) | | Description (Translated English) | Test methods of components and impurities of the manufactured gas | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | P45 | | Classification of International Standard | 75.160.30 | | Word Count Estimation | 35,312 | | Date of Issue | 2008-11-04 | | Date of Implementation | 2009-06-01 | | Older Standard (superseded by this standard) | GB/T 12208-1990; GB/T 12209.1-1990; GB/T 12209.2-1990; GB/T 12210-1990; GB/T 12211-1990 | | Quoted Standard | GB/T 601-2002; GB/T 603-2002; GB/T 13611 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.18 (Total No.131) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the city gas component in artificial gas and tar and dust, analysis of hydrogen sulfide and other impurities in the range, , naphthalene, ammonia principle, reagents and materials, instrument, sampling, analysis, result of the calculation and precision requirements, etc.. This standard applies to the analysis of artificial ingredients and impurities GB/T13611 gas regulations. Natural gas methane (6T) component of GB/T 13611 requirements analysis can refer to artificial gas components to perform chemical analysis. | GB/T 12208-2008: Test methods of components and impurities of the manufactured gas---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test methods of components and impurities of the manufactured gas
ICS 75.160.30
P45
National Standards of People's Republic of China
Replacing GB/T 12208-1990, GB/T 12209.1-1990, GB/T 12209.2-1990,
GB/T 12210-1990, GB/T 12211-1990
Gas composition and method for the determination of impurities
Posted 2008-11-04
2009-06-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3-component chemical formula 1
Chemical analysis of gas composition of 4 1
5 Determination of tar and artificial gas dust content of 7
6 Determination of artificial coal gas naphthalene content of 9
6.1 picric acid method 9
6.2 GC 14
Determination of 7 artificial gas in ammonia content 19
7.1 and titration 19
7.2 Nessler reagent spectrophotometric 21
8 Determination of artificial coal gas hydrogen sulfide content of 23
8.1 Iodimetry 23
8.2 Methylene blue spectrophotometric method 26
Appendix A (normative) To convert to a standard formula for sample volume of 30 state
Annex B (informative) Test Report 31
Foreword
This standard replaces GB/T 12208-1990 "Determination of city gas and dust in the tar content", GB/T 12209.1-1990
"Determination of naphthalene of gas in urban picric acid method", GB/T 12209.2-1990 "Determination of naphthalene of gas in urban gas chromatography"
GB/T 12210-1990 "Determination of ammonia gas in urban" and GB/T 12211-1990 "Determination of hydrogen sulfide gas in urban area."
This standard and GB/T 12208-1990, GB/T 12209.1-1990, GB/T 12209.2-1990, GB/T 12210-1990
And GB/T 12211-1990 compared to the main changes are as follows.
--- Standard name was changed to "Determination of gas composition and impurity content";
--- Increasing the chemical analysis of the content of the gas composition;
--- Increased Calculation result digits after the decimal point;
--- Increased the determination of hydrogen sulfide content Iodimetry reaction;
--- Modified artificial gas impurities in the sample position;
--- Modify the content of artificial gas and ammonia titration precision;
--- Remove the artificial hydrogen sulfide gas analysis methods lead acid dipstick;
--- Added Appendix A "sample volume converted to standard state of the formula" and Appendix B "test report."
Appendix A of this standard is a normative appendix; Appendix B is an informative annex.
The standard proposed by the Ministry of Housing and Urban-Rural Development of the People's Republic of China.
This standard by the Ministry of Construction of housing and urban-rural town gas standard technical focal North China Municipal Engineering Design and Research Institute.
This standard drafting units. China North China Municipal Engineering Design Institute, Taiyuan City Gas Company, Guangzhou Devotion Domestic Boilers Manufacturing has
Limited, Shanghai Gas Group, national gas appliances Quality Supervision and Inspection Center.
The main drafters of this standard. Juan, Shu Yongjuan, Xu Wei, Zhou Xiaomin, drainage red.
This standard replaces the standards previously issued as follows.
--- GB/T 12208-1990;
--- GB/T 12209.1-1990;
--- GB/T 12209.2-1990;
--- GB/T 12210-1990;
--- GB/T 12211-1990.
Gas composition and method for the determination of impurities
1 Scope
This standard specifies the scope of analysis of city gas component in artificial gas and dust and tar, naphthalene, ammonia, hydrogen sulfide and other impurities,
Principle, reagents and materials, equipment, sampling, analysis, calculation and precision of the results and other requirements.
This standard applies to the analysis of the gas composition and impurities GB/T 13611 requirements.
Natural gas methane (6T) components GB/T 13611 stipulated analyze gas composition may refer to a chemical analysis method is executed.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Preparation of GB/T 601-2002 Chemical Reagent standard titration solution
GB/T 603-2002 Chemical Reagent Test Methods - Preparations with
GB/T 13611 Classification and essential property of city gas
3-component chemical formula
The standard analysis component chemical formula expressed as follows.
--- Total content of acid gases. CO2 to represent;
--- Total unsaturated hydrocarbon gas content. The C-shaped m1 represents H;
The total content --- alkane gases. CH4 in representation;
--- Total content of inert gas. N2 in Fig.
Methods for chemical analysis of the gas composition 4
4.1 Principle
Determination of carbon dioxide (CO2) by direct absorption method, an unsaturated hydrocarbon (C H-shaped m1), oxygen (O2) and carbon monoxide (CO) content; the remaining combustible
Plus oxygen gas explosion, according to the results of the reaction, the calculation of methane (CH4) and hydrogen (H2) content; an inert gas (N2) was detected by the subtraction method
Obtained.
4.2 Scheme
4.2.1 Potassium hydroxide solution to absorb carbon dioxide and acid gases.
CO2 + 2KOH K2CO3 + H2O
Alkaline solution 4.2.2 pyrogallol (Coke sexual gallic acid) absorbs oxygen.
C6H3 (OH) 3+ → 3KOH C6H3 (OK) 3 + 3H2O
2C6H3 (OK) 3 + 1/2O → 2 C12H4 (OK) 3 + H2O
Absorption 4.2.3 oleum unsaturated hydrocarbon (C H-shaped m1), such as C2H4, C6H6.
C2H4 + H2SO4 · SO → 3 C2H6S2O7 (vinyl sulfonic acid)
C6H6 + H2SO4 · SO → 3 C6H6SO3 (acid) + H2SO4
4.2.4 ammoniacal cuprous chloride solution to absorb carbon monoxide.
Cu2Cl2 + 2CO Cu2Cl2 · 2CO
Cu2Cl2 · 2CO + 4NH3 + 2H2 → O 2NH4Cl + Cu2 · 2COONH4
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