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GB/T 31705-2015: In situ measurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic (GC) system
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 31705-2015 | English | 209 |
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In situ measurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic (GC) system
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GB/T 31705-2015
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Basic data | Standard ID | GB/T 31705-2015 (GB/T31705-2015) | | Description (Translated English) | In situ measurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic (GC) system | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A47 | | Classification of International Standard | 07.060 | | Word Count Estimation | 10,190 | | Date of Issue | 2015-06-02 | | Date of Implementation | 2016-01-01 | | Quoted Standard | GB/T 4946-2008; QX/T 125-2011 | | Regulation (derived from) | National Standard Announcement 2015 No.19 | | 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 background concentration of atmospheric carbon dioxide and methane gas chromatography-line methods of observation, including the observation environment, observing system components, performance requirements, observing processes and systems maintenance. This Standard applies to gas chromatography-line observation of the background atmospheric concentrations of carbon dioxide and methane. | GB/T 31705-2015: In situ measurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic (GC) system
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In situ measurement of background atmospheric carbon dioxide and methane concentration by gas chromatographic (GC) system
ICS 07.060
A47
National Standards of People's Republic of China
Gas chromatography and background atmospheric carbon dioxide
Methane Concentration methods of observation
methaneconcentrationbygaschromatographic (GC) system
Issued on. 2015-06-02
2016-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by the China Meteorological Administration.
This standard by the National Standardization Technical Committee climate and climate change atmospheric composition observation forecasting and warning services Technical Committee
(SAC/TC540/SC1) centralized.
This standard was drafted. Chinese Academy of Meteorological Sciences.
The main drafters of this standard. Zhou Ling Xi, Fangshuang Xi, Liu Lixin, Yao Bo, Zhang Fang.
Introduction
Carbon dioxide and methane in the atmosphere are the two most important greenhouse gases. Gas chromatography is a measure of the concentration of carbon dioxide and methane, the main
One way. In order to regulate the background concentrations of carbon dioxide and methane in the atmosphere observations formulated standards.
Gas chromatography and background atmospheric carbon dioxide
Methane Concentration methods of observation
1 Scope
This standard specifies the background concentration of atmospheric carbon dioxide and methane gas chromatography-line methods of observation, including the observation environment, observing systems group
Cheng, performance requirements, observing the process and system maintenance.
This standard applies to gas chromatography-line observation of the background atmospheric concentrations of carbon dioxide and methane.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 4946-2008 term gas chromatography
QX/T 125-2011 GHG floor observation term
3 Terms and Definitions
GB/T 4946-2008, QX/T 125-2011 defined by the following terms and definitions apply to this document.
3.1
GC gaschromatography
As the mobile phase gas chromatography, which uses the phase difference between the material and the stationary phase partition coefficient in the flow, when the two-phase relative transport
When moving, the sample components between two phases repeated allocation, distribution coefficients of the components even if only small differences, as the mobile phase (gas
Moving body) may also have the distance, the last component of the sample to obtain separation and determination.
[GB/T 4946-2008, Definition 2.1]
3.2
Hydrogen flame ionization detector hydrogenflameionizationdetector
When generating ions in a hydrogen flame combustion of organic matter, the device generates an electrical signal in the electric field.
[GB/T 4946-2008, the definition 3.6.4.2]
3.3
Background atmosphere backgroundatmosphere
Away from local sources, not directly affect the local environment, the basic mix of atmosphere.
[QX/T 125-2011, the definition 3.3]
3.4
Online observation insitumeasurement
In the target location on the target was subjected to direct measurement.
3.5
Nickel catalyst nickelcatalyst
A nickel catalyst, and hydrogen at elevated temperature conditions, can carbon dioxide, carbon monoxide and other ingredients into methane.
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