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GB/T 11060.6-2011: Natural gas -- Determination of sulfur compounds -- Part 6: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry
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Natural gas -- Determination of sulfur compounds -- Part 6: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry
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GB/T 11060.6-2011
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Basic data | Standard ID | GB/T 11060.6-2011 (GB/T11060.6-2011) | | Description (Translated English) | Natural gas -- Determination of sulfur compounds -- Part 6: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | E24 | | Classification of International Standard | 75.060 | | Word Count Estimation | 10,124 | | Date of Issue | 2011-12-05 | | Date of Implementation | 2012-05-01 | | Quoted Standard | GB/T 12805; GB/T 12806; GB/T 12808; GB/T 13609 | | Adopted Standard | ISO 6326-3-1989, MOD | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 19 of 2011 | | 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 method for the determination of the potential of natural gas hydrogen sulfide, mercaptan sulfur and sulfur-oxidizing broken disk containing test method to determine the range of greater than or equal to 1Mg/cubic meter. This section applies to clean, no fog, no oxygen, hydrogen cyanide and carbon disulfide, hydrogen sulfide and mercaptans content ratio, and the ratio of mercaptans and hydrogen sulfide gases does not exceed 50: 1. This section does not apply to carbon dioxide greater than 1. 5% (volume fraction) of gas. | GB/T 11060.6-2011: Natural gas -- Determination of sulfur compounds -- Part 6: Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry
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Natural gas Determination of sulfur compounds Part 6. Determination of hydrogen sulfide, mercaptan sulfur and carbonyl sulfide sulfur by potentiometry
ICS 75.060
E24
National Standards of People's Republic of China
Natural gas - Determination of sulfur compounds
Part 6. potentiometric method to measure hydrogen sulfide, mercaptan sulfur
Carbon monoxide and sulfur content
Part 6. Determinationofhydrogensulfide, mercaptansulfurand
(ISO 6326-3. 1989, MOD)
Issued on. 2011-12-05
2012-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
"GB/T 11060" Determination of sulfur compounds in natural gas "is divided into twelve parts."
--- Part 1. Determination of hydrogen sulfide content by iodometry;
--- Part 2. Determination of hydrogen sulfide content with methylene blue method;
--- Part 3. Determination of lead acetate reaction rate of hydrogen sulfide content of the double optical path method;
--- Part 4. Determination of total sulfur content by oxidation Microcoulometry;
--- Part 5. hydrogen Solutions - rate meter colorimetric determination of total sulfur content;
--- Part 6. Determination of hydrogen sulfide, mercaptan sulfur and sulfur-type carbon monoxide content by potentiometric method;
--- Part 7. Determination of total sulfur content by Linge Nai combustion;
--- Part 8. spectrophotometric determination of total sulfur content by UV fluorescence;
--- Part 9. Determination of mercaptan sulfur content - iodometric method;
--- Part 10. gas chromatography;
--- Part 11. Determination of hydrogen sulfide content of the coloring length detector tube;
--- Part 12. Determination of hydrogen sulfide content by laser absorption spectroscopy.
This section GB/T 11060 Part 6.
This section drafted in accordance with GB/T 1.1-2009 given rules.
The partial modification of the use of ISO 6326-3. 1989 "Part 3 Natural gas - Determination of sulfur compounds. Determination of hydrogen sulfide potential method, sulfur
Alcohol, sulfur, carbon monoxide "(in English).
This part of ISO 6326-3 the main technical differences.
Name --- The section from "Natural gas - Determination of sulfur compounds - Part 3. Determination of potential method hydrogen sulfide, mercaptans, sulfur, carbon monoxide
Content "with" Natural gas - Determination of sulfur compounds - Part 6. Determination of hydrogen sulfide, mercaptans, sulfur, carbon monoxide potentiometric method
content";
--- Delete Chapter 1 Scope. "Note. In all parts of ISO 6326, showing 1m3 of gas is at (0 ℃ and normal conditions
101.325kPa) ";
--- Chapter 2 normative references, and some apply to international standard formulation modified to apply to our standard formulation,
ISO standards are replaced by the contents of the corresponding national standards, the remaining chapters corresponding to the content is modified accordingly, an increase of
"GB/T 13609 Gas sampling Guidelines" normative references;
--- The ISO 6326-1.2007 Chapter 3 Sampling contents to Part 6 of this chapter in the sample;
Chapter 8 --- The precision has been modified;
--- In order to be consistent with our current "gas standard reference conditions" and other relevant standards, the ISO 6326-3. 1989 in Chapter 8
Gas sample volume measurement standard reference conditions "0 ℃ and 101.325kPa" to "20 ℃ and 101.325kPa".
This part of the National Gas Standardization Technical Committee (SAC/TC244) centralized.
This section drafted by. China Southwest Oil and Gas Field Branch Gas Research Institute of Petroleum.
The main drafters of this section. Sun Xiaoyan, Luo Qin, Tu regime, Wang Hongli, Xuwen Xiao, Huang Liming, Chang Hong Kong.
Natural gas - Determination of sulfur compounds
Part 6. potentiometric method to measure hydrogen sulfide, mercaptan sulfur
Carbon monoxide and sulfur content
1 Scope
This section provides test methods for natural gas hydrogen sulfide, carbon monoxide and sulfur mercaptan sulfur content - potentiometric method, measuring range greater than or
Equal to 1mg/m3.
This section applies to clean, no fog, no oxygen than hydrogen cyanide and carbon disulfide, hydrogen sulfide and mercaptans content of, as well as hydrogen sulfide and mercaptans
Content ratio not exceeding 50.1 gases.
This section does not apply to carbon dioxide gas is greater than 1.5% (volume fraction).
2 Normative references
The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein
Member. For cited documents without a date. The latest version (including any amendments) applies to this document.
GB/T 12805 Laboratory glassware burette (GB/T 12805-1991, ISO 385. 1984, EQV)
GB/T 12806 Laboratory glassware single marking flask (GB/T 12806-1991, ISO 1042. 1983, EQV)
GB/T 12808 standard laboratory glassware single line pipette (GB/T 12808-1991, ISO 648. 1977, EQV)
GB/T 13609 Gas sampling guidelines (GB/T 13609-1999, ISO 10715.1997, EQV)
Principle 3
With 35% (by mass) of potassium hydroxide solution absorbed by the sample in hydrogen sulfide and mercaptans, with 5% (by mass) solution of monoethanolamine
Carbon dioxide absorbed by the sample of sulfur. Potentiometric titration with silver nitrate solution was absorbed by the silver/silver sulfide electrode indicates the titration end point.
4 Reagents and materials
Use only analytical reagent and distilled water or equivalent purity.
4.1 Potassium hydroxide solution
Was dissolved 35g of potassium hydroxide (KOH) in 65g of water.
NOTE. In order to avoid interfering heavy metal ions, the absorbing liquid was added per 50mL 0.5g polyamino acid mixture to reduce the activity of heavy metal ions.
The mixture consisting of equal amounts of the following materials.
Diethylene triamino pentaacetic acid sodium salt (Na5DTPA)
N- hydroxyethyl ethylene diamine triacetic acid trisodium salt (Na3HEDTA)
N, N- bis (2-hydroxyethyl) - sodium glycine (NaDHEG)
Ethylenediaminetetraacetic acid tetrasodium salt (Na4EDTA)
4.2 monoethanolamine solution
Dissolving 5g monoethanolamine (C2H7ON) in 95g of ethanol.
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