SN/T 2255-2009 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2255-2009: Determination of composition of liquefied petroleum gases. Capillary gas chromatography Status: Valid
Basic dataStandard 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---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. 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 ForewordAppendix 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 Chromatography1 ScopeThis 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 referencesThe 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 gas3 Terms and DefinitionsThe 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 materials5.1 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 Instruments6.1 Gas chromatograph. with flame ionization detector. 6.2 water bath. temperature accurate to ± 1 ℃.7 Procedure7.1 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. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 2255-2009_English be delivered?Answer: Upon your order, we will start to translate SN/T 2255-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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