GB/T 8039-2022 English PDF

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GB/T 8039-2022: Determination of total sulfur of coking benzole products
Status: Valid

GB/T 8039: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8039-2022	269	Add to Cart	3 days	Determination of total sulfur of coking benzole products	Valid
GB/T 8039-2009	439	Add to Cart	3 days	Benzol products of coal carbonization -- Determination of total sulphur content -- Reduction and spectrophotometric method	Obsolete
GB/T 8039-1987	239	Add to Cart	2 days	Benzol products of coal carbonization--Determination of total sulphur content--Reduction and spectrophotometric method	Obsolete

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Basic data

Standard ID: GB/T 8039-2022 (GB/T8039-2022)
Description (Translated English): Determination of total sulfur of coking benzole products
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G18
Classification of International Standard: 71.080
Word Count Estimation: 14,126
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Older Standard (superseded by this standard): GB/T 8039-2009
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8039-2022: Determination of total sulfur of coking benzole products

---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 total sulfur of coking benzole products ICS 71.080 CCSG18 National Standards of People's Republic of China Replacing GB/T 8039-2009 Determination method of total sulfur content of coking benzene products Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration

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" drafted. This document replaces GB/T 8039-2009 "Reduction Spectrophotometric Method for Determination of Total Sulfur Content in Coking Benzene Products", and GB/T 8039- Compared with.2009, except for structural adjustment and editorial changes, the main technical changes are as follows. a) Changed the reagents and materials in Method 1 (see Chapter 5 of 5.2,.2009 edition); b) Added method 2 UV fluorescence method (see Chapter 6). Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is under the jurisdiction of the National Standardization Technical Committee of Coal Chemical Industry (SAC/TC469). This document is drafted by. Ansteel Chemical Technology Co., Ltd., Baowu Carbon Industry Technology Co., Ltd., Shandong Haoyu Energy Co., Ltd., Wuhan University of Science and Technology, Institute of Metallurgical Industry Information Standards, Jiangxi Guangming Intelligent Technology Co., Ltd. The main drafters of this document. Lu Ming, Zhang Dakui, Mu Chunfeng, Zhang Lili, Fei Jianhua, Han Fudong, Zhang Xin, Lin Jianquan, Tang Yanxiu, Fang Hongming, Wang Shijie, Liu Ying, Zhou Qingxin, Wang Xiaoyuan, He Shize, Wu Bo, He Wenli. This document was first published in 1987, revised for the first time in.2009, and this is the second revision. Determination method of total sulfur content of coking benzene products Warning---In the test method shown in this document, some dangerous reagents and test instruments need to be used, and some operation processes also have certain Hazardous, as it is not possible to specify all methods of safe use, it is the user's responsibility to take appropriate safety and health measures, and Ensure compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This document specifies the principles, reagents, instruments, sampling and preparation of samples, test procedures and results for the determination of total sulfur content in coking benzene products Computation and Precision. This document applies to the determination of total sulfur content of coking benzene products, including coking benzene, coking toluene, coking xylene and intermediate products. The measurement range of method 1 is 0.1mg/kg~30mg/kg, and the measurement range of method 2 is 0.1mg/kg~100mg/kg.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 1999 Sampling method for coking oil products GB/T 6682 Analysis Laboratory Water Specifications and Test Methods GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 12807 Laboratory glass instrument indexing pipette GB/T 12808 Laboratory glass instrument single reticle pipette

3 Terms and Definitions

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

4 Sample collection and preparation

According to the provisions of GB/T 1999. 5 Method-Spectrophotometry 5.1 Principle The sulfide in the sample is reduced to nickel sulfide with active nickel. Hydrogen sulfide is resolved in acidic solution and absorbed by alkaline zinc acetate. Suck The collected liquid is combined with N,N-dimethyl-p-phenylenediamine sulfate and ammonium iron(III) sulfate to generate methylene blue. The absorbance of the blue solution was measured at a wavelength of 667 nm. 5.2 Reagents and materials Unless otherwise specified, the grades of reagents used in this document are of analytical grade, and the water used shall comply with grades 3 and above in GB/T 6682. ......

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