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SN/T 2422-2010: Determination of nitrogen in petroleum coke for import and export. Thermal conductivity method
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2422-2010 | English | 139 |
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Determination of nitrogen in petroleum coke for import and export. Thermal conductivity method
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SN/T 2422-2010
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Basic data | Standard ID | SN/T 2422-2010 (SN/T2422-2010) | | Description (Translated English) | Determination of nitrogen in petroleum coke for import and export. Thermal conductivity method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | E30 | | Classification of International Standard | 75.080 | | Word Count Estimation | 5,584 | | Date of Issue | 2010-01-10 | | Date of Implementation | 2010-07-16 | | Quoted Standard | SH/T 0313 | | Regulation (derived from) | National Quality Inspection [2010] No. 13 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the import and export of petroleum coke, the nitrogen content of the thermal conductivity method. This standard applies to import petroleum coke nitrogen content. | SN/T 2422-2010: Determination of nitrogen in petroleum coke for import and export. Thermal conductivity method
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Determination of nitrogen in petroleum coke for import and export.Thermal conductivity method
Exit inspection and quarantine industry standard book People's Republic of China
Import and export of petroleum coke nitrogen measured thermal conductivity method
Issued on. 2010-01-10
2010-07-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Tianjin Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Shandong Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this standard. Li Quan Bin, Hou Yingtao, Zhou Luo, Su-Mei Wang, Yue Chunlei, pipe Song.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Import and export of petroleum coke nitrogen measured thermal conductivity method
1 Scope
This standard specifies the method for measuring the thermal conductivity of the import and export of petroleum coke nitrogen content.
This standard applies to the determination of the import and export of petroleum coke nitrogen content.
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.
SH/T 0313 Petroleum coke Inspection Act
3 Method summary
In the presence of oxygen at high purity, high temperature combustion of nitrogen in the form of free nitrogen and nitrogen oxides released from petroleum coke, filtered combustion
After the resulting sulfur oxides and halides, and nitrogen oxides generated by the catalytic reduction furnace into N2, and then the carbon dioxide absorbent and desiccant
Respectively, CO2 and H2O removed using N2 and He thermal conductivity differences in thermal conductivity detector quantitative detection of N2 content, the arithmetic
After the processing of petroleum coke derived nitrogen content.
4 Reagents and materials
4.1 Sucrose. AR.
4.2 Helium. the carrier gas, the purity of 99.999% or meet instrument manufacturer.
4.3 oxygen. combustion gas, 99.999% purity or meet instrument manufacturer.
4.4 nitrogen or compressed air. air power.
4.5 Coal standard substance. the nitrogen content of between 1% to 3%.
4.6 EDTA standard. high purity.
4.7 tinfoil.
5 Equipment
5.1 Method nitrogen thermal conductivity detector. a burner, filtration systems, catalytic heating pipe, thermal conductivity detector, a microprocessor.
This standard is recommended to use the instrument manufacturer's equipment supplies such as. furnace reagents, filter materials, catalysts, reducing agents, such as the desiccant.
5.2 Balance. a sense of the amount of 0.1mg.
6 Sampling and Preparation
The samples were taken in accordance with the provisions of SH/T 0313's. Test sample for analysis, in accordance with the provisions of SH/T 0313 is prepared
Particle size less than air dry or dry sample of 75μm.
7 Procedure
7.1 Instrument Preparation
Setting the combustion temperature of 950 ℃ ± 20 ℃, by observing the combustion of the sample, adjusting the flow rate of oxygen, combustion time and other instrument parameters to
Samples can ensure complete combustion.
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