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GB/T 32158-2025: Coal-based needle coke
Status: Valid GB/T 32158: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32158-2025 | English | 219 |
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Coal-based needle coke
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GB/T 32158-2025
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| GB/T 32158-2015 | English | 189 |
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Coal-based needle coke
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GB/T 32158-2015
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PDF similar to GB/T 32158-2025
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Count Estimation | 10,160 | | Date of Issue | 2025-04-25 | | Date of Implementation | 2025-08-01 | | Older Standard (superseded by this standard) | GB/T 32158-2015 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T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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