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SN/T 2255-2009: Determination of composition of liquefied petroleum gases. Capillary gas chromatography
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| SN/T 2255-2009 | English | 209 |
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Determination of composition of liquefied petroleum gases. Capillary gas chromatography
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SN/T 2255-2009
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PDF similar to SN/T 2255-2009
Standard similar to SN/T 2255-2009 GB/T 19492 GB/T 18606 SY/T 0520 SN/T 2382 Basic data | Standard ID | SN/T 2255-2009 (SN/T2255-2009) | | Description (Translated English) | Determination of composition of liquefied petroleum gases. Capillary gas chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | E20 | | Classification of International Standard | 75.080 | | Word Count Estimation | 8,834 | | Date of Issue | 2009-02-20 | | Date of Implementation | 2009-09-01 | | Quoted Standard | GB 11174 | | Regulation (derived from) | 2009 No. 5 (total 113) Chinese industry standard filing Announcements | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the liquefied petroleum gas composition by capillary gas chromatographic method. This standard applies to LPG propane, butane and propane-butane mixture of liquefied petroleum gas LPG component determination. | SN/T 2255-2009: Determination of composition of liquefied petroleum gases. Capillary gas chromatography
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Determination of composition of liquefied petroleum gases.Capillary gas chromatography
Exit inspection and quarantine industry standard book People's Republic of China
Determination of liquefied petroleum gas components
Capillary Gas Chromatography
Posted 2009-02-20
2009-09-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard and Appendix B is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China SZCIQ, People's Republic of China Jiangsu Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this standard. Wanglou Ming, Liu Li, Yerui Jun, Yang Jun-Fan, Chen Guofeng, Chen shock wave, Wang Hua, Wang Hongwei, Jiang Tao.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of liquefied petroleum gas components
Capillary Gas Chromatography
1 Scope
This standard specifies the capillary gas chromatographic method of liquefied petroleum gas components.
This standard applies to propane liquefied petroleum gas, LPG measured components of LPG and propane-butane mixture of butane.
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.
GB 11174 Liquefied petroleum gas
3 Terms and Definitions
The following terms and definitions apply to this standard.
3.1
LPG generally refers to C3 to C4 hydrocarbon mixture, which comprises C1, C2, C5 and above hydrocarbons. This standard LPG
Especially in line with GB 11174 LPG LPG range.
Principle 4
Gas sample and standard gas mixture of known composition, under the same operating conditions, by capillary gas chromatography separation, will be
Sex. The two corresponding components is compared. With standard gas composition data to calculate the appropriate composition of the gas samples. When calculated using the peak
Quantitative area.
5 Reagents and materials
5.1 Carrier gas. nitrogen, purity not less than 99.999%.
5.2 standard gas. buy from certified by the state of production units. All components of the standard gas must be in uniform gaseous. Standard gas component
The concentration of the unknown sample quite so not normalized sum of the components of the measured values within 100% ± 1% range.
6 Instruments
6.1 Gas chromatograph. with flame ionization detector.
6.2 water bath. temperature accurate to ± 1 ℃.
7 Procedure
7.1 connection
The pipeline will connect with the appropriate sampling LPG bottle and GC inlet connected to part of the pipeline into a spiral disk was immersed in 80 ℃ water
Bath liquid sample manipulation gasification, and then by the injection valve The injection capillary gas chromatography.
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