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GB/T 40500-2021 English PDF

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GB/T 40500-2021: Determination of total aromatics composition in aviation fuels - Gas chromatography
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PDF similar to GB/T 40500-2021


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Basic data

Standard ID GB/T 40500-2021 (GB/T40500-2021)
Description (Translated English) Determination of total aromatics composition in aviation fuels - Gas chromatography
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard E31
Word Count Estimation 18,113
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 40500-2021: Determination of total aromatics composition in aviation fuels - Gas chromatography


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Determination of total aromatics composition in aviation fuels - Gas chromatography ICS 75.160.20 CCSE31 National Standards of People's Republic of China Determination of Total Aromatics in Jet Fuel Gas chromatography Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed and managed by the National Petroleum Products and Lubricants Standardization Technical Committee (SAC/TC280). Drafting organizations of this document. China Petroleum & Chemical Corporation Research Institute of Petrochemical Industry, CNOOC Huizhou Petrochemical Co., Ltd., Shaanxi Xiyanchang Petroleum (Group) Co., Ltd. Yongping Refinery, Beijing Chuxiangfei Technology Development Co., Ltd. The main drafters of this document. Chang Chunyan, Shi Yanqiang, Xu Guangtong, Tao Zhiping, Ma Chunyang, Shi Yanmei, Zhao Dongsheng, Zhao Jie, Cai Haijun, Xu Hualing.

Introduction

The aromatic content in jet fuel has become an important quality indicator in jet fuel specifications. This document can determine aromatics in jet fuel The mass fraction or volume fraction. This data is useful for monitoring the process status of jet fuel production equipment, the development of new processes for jet fuel production and injection The quality control of gas and fuel is very important. Compared with GB/T 11132, this document has fewer factors affecting the analysis results, simple test procedures, short analysis cycles, and is conducive to improvement. The test environment reduces labor intensity and improves the precision of analysis results. Determination of Total Aromatics in Jet Fuel Gas chromatography Warning---The personnel using this document should have practical experience in formal laboratory work. The use of this document may involve certain dangerous This document does not point out all possible safety issues. The user is responsible for taking appropriate safety and health measures And ensure compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This document describes a method for the determination of total aromatics in jet fuel using a gas chromatograph. This document is applicable to the determination of total aromatics in jet fuel with a final boiling point below 300℃, and the range of determination of aromatics mass fraction or volume fraction The circumference is 0.5%~35%. Note. The content of olefins in jet fuel is affected by its production process, and the content is low. The capture materials used in this document are reversible selective adsorption materials. During the analysis process, the aromatic components are selectively adsorbed. If the sample contains olefins, olefins and aromatics co-elute, the determination result of aromatics will be too large. This document is not applicable to the determination of the content of monomer hydrocarbon components in each hydrocarbon group.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 4756 Manual sampling method for petroleum liquids GB/T 6683 Petroleum products test method precision data determination method GB/T 27867 Petroleum liquid pipeline automatic sampling method

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Saturated hydrocarbons A hydrocarbon compound in which carbon and carbon and hydrocarbons are connected by single bonds. 3.2 Aromatics A hydrocarbon containing one or more benzene ring structures. 3.3 Aromaticstrap A chromatographic column used to selectively retain aromatic components from jet fuel samples. The column captures aromatic components at a specific temperature. Collection and release have good reversibility and can be used repeatedly.

4 Principle and summary of the method

4.1 The analysis principle of gas chromatography for the determination of jet fuel hydrocarbon components is shown in Figure 1.After the jet fuel sample enters the chromatographic system, it passes through a

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