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GB/T 32158-2025 English PDF

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GB/T 32158-2025: Coal-based needle coke
Status: Valid

GB/T 32158: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 32158-2025English219 Add to Cart 3 days [Need to translate] Coal-based needle coke Valid GB/T 32158-2025
GB/T 32158-2015English189 Add to Cart 3 days [Need to translate] Coal-based needle coke Valid GB/T 32158-2015

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Basic data

Standard ID GB/T 32158-2025 (GB/T32158-2025)
Description (Translated English) Coal-based needle coke
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H32
Classification of International Standard 75.160.10
Word Count Estimation 10,160
Date of Issue 2025-04-25
Date of Implementation 2025-08-01
Older Standard (superseded by this standard) GB/T 32158-2015
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 32158-2025: Coal-based needle coke

---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.
ICS 75.160.10 CCSH32 National Standard of the People's Republic of China Replace GB/T 32158-2015 Coal-based needle coke Released on 2025-04-25 2025-08-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

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 for standardization documents" Drafting is required. This document replaces GB/T 32158-2015 "Coal-based needle coke". Compared with GB/T 32158-2015, except for structural adjustments and editorial changes, In addition to the modifications, the main technical changes are as follows. a) The technical indicators of coal-based needle coke have been changed (see 4.1, 3.1 of the.2015 edition); b) The method for determining true density has been changed (see 5.1, 4.1 of the.2015 edition); c) The determination method of nitrogen content has been changed (see 5.3, 4.3 of the.2015 edition); d) The method for determining moisture content has been changed (see 5.6, 4.6 of the.2015 edition); e) Added the method for determining the compressive strength index (see 5.10). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is under the jurisdiction of the National Coal Chemical Industry Standardization Technical Committee (SAC/TC469). This document was drafted by. Anshan Zhongte New Materials Technology Co., Ltd., Shanxi Juxian Graphite New Materials Co., Ltd., Henan Shengrui Carbon Materials Technology Co., Ltd., Anshan Iron and Steel Group Beijing Research Institute Co., Ltd., and Metallurgical Industry Information Standards Research Institute. The main drafters of this document are. Zhao Zhanlei, Cai Chuang, Yu Yinping, Zhang Xiangjun, Zhao Jingying, Pang Keliang, Wang Xiaoyuan, Ma Chan, Dong Zengliang, Gao Yuan, Ma Wei. The previous versions of this document and the documents it replaces are as follows. ---GB/T 32158-2015. Coal-based needle coke

1 Scope

This document specifies the technical requirements, inspection rules, packaging, transportation, storage and quality certification of coal-based needle coke, and describes the test methods. This document is applicable to the production of coal tar pitch as raw material, which is produced by raw material pretreatment, delayed coking device and high temperature calcination. Burnt.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 1429 Determination of ash content of carbon materials GB/T 1997 Collection and preparation of coke samples GB/T 2001-2013 Coke industrial analysis and determination methods GB/T 3074.4 Determination method of coefficient of thermal expansion (CTE) of graphite electrode GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 8718 Terminology of Carbon Materials GB/T 21354 General method for determination of tap density of powder products GB/T 24203 Determination of bulk density and true porosity of carbon materials - Boiling method GB/T 24521 Carbon raw materials and coke resistivity determination method GB/T 24526 Determination of total sulfur content in carbon materials GB/T 37588 Determination of nitrogen content of carbon materials - Dumas combustion method YB/T 5189 Determination of volatile matter of carbon materials YB/T 6049 Determination method for compressive strength index of needle coke YB/T 6194 Determination of true density of needle coke - Kerosene displacement method

3 Terms and definitions

The terms and definitions defined in GB/T 8718 apply to this document.

4 Technical requirements

4.1 The technical indicators of coal-based needle coke are shown in Table 1.

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