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GB/T 40496-2021 English PDF

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GB/T 40496-2021: Determination of antioxidant content in jet fuel - High performance liquid chromatography
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 40496-2021	English	279	Add to Cart	3 days [Need to translate]	Determination of antioxidant content in jet fuel - High performance liquid chromatography	Valid	GB/T 40496-2021

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Basic data

Standard ID	GB/T 40496-2021 (GB/T40496-2021)
Description (Translated English)	Determination of antioxidant content in jet fuel - High performance liquid chromatography
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	E31
Word Count Estimation	14,198
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 40496-2021: Determination of antioxidant content in jet fuel - High performance liquid 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 antioxidant content in jet fuel - High performance liquid chromatography ICS 75.160.20 CCSE31 National Standards of People's Republic of China Determination of antioxidant content in jet fuel High performance liquid 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). This document was drafted by. China Petroleum & Chemical Corporation Research Institute of Petrochemical Industry. The main drafters of this document. Zhao Liping, Liu Yifei, Chang Chunyan, Xu Hualing, Fu Chaolin, Yan Rui, Zhu Zhongpeng, Zhao Jie, Wu Mingqing, Tao Zhiping. Determination of antioxidant content in jet fuel High performance liquid 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 the determination of 2,6-di-tert-butyl-p-cresol (T501) and 2,4-dimethyl-6-tert-butyl in jet fuel by high performance liquid chromatography Method of phenol content. This document provides two methods. Method A (High Performance Liquid Chromatography-UV Detection) and Method B (Liquid Chromatography-Mass Spectrometry). Method A It is suitable for the determination of 2,6-di-tert-butyl-p-cresol (T501) and 2,4-dimethyl-6-tert-butylphenol in hydrocracking jet fuel. The measuring range of 2,6-di-tert-butyl-p-cresol (T501) is 4.0mg/L~40.0mg/L, the determination of 2,4-dimethyl-6-tert-butylphenol content The range is 5.0mg/L~40.0mg/L; Method B is suitable for hydrocracking and hydrorefining 2,6-di-tert-butyl-p-cresol in jet fuel (T501) content determination, the determination range is 3.5mg/L~50.0mg/L.

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 6682 Analytical laboratory water specifications and test methods GB/T 6683 Petroleum products test method precision data determination method GB/T 27867 Petroleum liquid pipeline automatic sampling method

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Method summary

The jet fuel sample is filtered through a filter membrane to remove particulate impurities, and then imported into high performance liquid chromatography for separation. Method A is detected by ultraviolet detector or diode array detector, and method B is detected by mass detector. Method A sample 2,4- Dimethyl-6-tert-butylphenol and 2,6-di-tert-butyl-p-cresol (T501) content, method B sample contains 2,6-di-tert-butyl-p-cresol (T501) The quantities were quantified separately by the external standard method.

5 Instruments

5.1 High performance liquid chromatograph (HPLC). equipped with diode array detector or ultraviolet detector, the maximum allowable sample injection volume of the sample valve system

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