GB/T 3520-2024 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 3520-2024: Test method for fineness of graphite Status: Valid GB/T 3520: Historical versions
Basic dataStandard ID: GB/T 3520-2024 (GB/T3520-2024)Description (Translated English): Test method for fineness of graphite Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q51 Classification of International Standard: 73.080 Word Count Estimation: 10,135 Date of Issue: 2024-10-26 Date of Implementation: 2025-05-01 Older Standard (superseded by this standard): GB/T 3520-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 3520-2024: Test method for fineness of graphite---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT3520-2024Test method for fineness of graphite Test method for graphite fineness ICS 73.080 CCS Q 51 National Standard of the People's Republic of China Replaces GB/T 3520-2008 Released on October 26, 2024 Implementation on May 1, 2025 State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface... Ⅲ 1 Scope... 1 2 Normative references... 1 3 Terms and Definitions 1 4 Sample collection and preparation... 1 4.1 Sample collection 1 4.2 Preparation of samples 2 5 Test methods... 2 5.1 Negative pressure sieve analysis (measurement range. not less than 38 μm) 2 5.2 Vibrating sieve method (measurement range. not less than 38 μm)... 3 5.3 Laser diffraction method (measurement range. not more than 38 μm) 4 Preface 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 3520-2008 "Test method for graphite fineness". Compared with GB/T 3520-2008, in addition to structural adjustments and In addition to editorial changes, the main technical changes are as follows. The scope of application has been changed (see Chapter 1, Chapter 1 of the.2008 edition); a) "Terms and Definitions" has been changed (see Chapter 3, Chapter 3 of the.2008 edition); b) Added "Sample Collection and Preparation" (see Chapter 4); c) Changed "Negative pressure sieve analysis method" (see 5.1, 4.1 of the.2008 edition); d) Changed the "vibrating screen method" (see 5.2, 4.2 of the.2008 edition); e) Added "Laser diffraction method" (see 5.3). f) 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 proposed by China Building Materials Federation. This document is under the jurisdiction of the National Technical Committee for Standardization of Non-metallic Mineral Products and Products (SAC/TC 406). This document was drafted by. Hunan Dingli Technology Co., Ltd., Chengdu Fangda Carbon Composite Materials Co., Ltd., China Building Materials Shandong Corps of the Industrial Geological Exploration Center of Materials, Xianyang Non-metallic Mineral Research and Design Institute Co., Ltd., Carbon One New Energy Group Co., Ltd., The Fourth Geological Brigade of the Xinjiang Uygur Autonomous Region Geological and Mineral Exploration and Development Bureau, Henan Yicheng New Energy Co., Ltd., Pingdingshan Boxiang Carbon Co., Ltd., Fujian Xiangfenghua New Energy Materials Co., Ltd., Shanghai Renpeng Industrial Co., Ltd., Qingdao Shengtai Graphite Co., Ltd., Jiangxi Zichen Technology Co., Ltd., Shandong Liaocheng Junrui Superhard Materials Co., Ltd., Chenzhou Product Quality Supervision and Inspection Institute, China National Testing and Control Group Xianyang Co., Ltd. The main drafters of this document are. Dai Yu, Li Xi, Wang Haicheng, Hou Caihong, Du Ning, Lang Yange, Zhou Yunhui, Zhao Shiliang, Song Hongfang, Wang Xihua, Hu Jianchang, Liu Dongren, Qin Chao, Zhou Zhiyong, Lü Guoliang, Duan Yaping, Chen Xiongzi, Zhao Shigui, Ouyang Youhe, Zhu Xinjie, Jin Pingping, Xin Ling, Wei Yanzhao, Hu Feilin, Li Jianxin, Li Ningning, and Wang Yanyan. This document was first published in 1983 as GB 3520-1983, first revised in.1995 as GB/T 3520-1995, and revised in.2008 as GB/T 3520-1995. Second revision, this is the third revision. Test method for graphite fineness1 ScopeThis document describes the test method for graphite fineness. This document applies to the determination of the fineness of graphite products.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the latest version (including all amendments) applies to this document. In this document. GB/T 6003.1 Technical requirements and inspection of test sieves Part 1.Wire mesh test sieves GB/T 6679 General Rules for Sampling of Solid Chemical Products GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 41949 Technical requirements for particle laser particle size analyzers DZ/T 0118 Technical Specifications for Laboratory Standard Sieve Oscillators 3 Terms and Definitions The following terms and definitions apply to this document. 3.1 the end of filter After the sample is screened at the specified time, continue screening for a certain period of time. When the mass change of the sieve (or sieve residue) is equal to the mass change of the sample, The process is terminated when the ratio is less than 0.3%. 3.2 sieve residue residue That portion of a charge that does not pass through the openings of a specified sieve. 3.3 undersize The portion of a charge that passes through the openings of a specified sieve. 3.4 Cumulative diameter Dn The geometric mean particle size corresponding to the nth percentile of the cumulative particle size distribution from small to large. Note. In general, n is an integer; common ones include D10, D50, D90, etc., which are selected according to specific industries and applications. [Source. GB/T 41949-2022, 3.3]4.Sample collection and preparation4.1 Sample collection According to the provisions of GB/T 6679, take a 1 kg sample and then reduce it to.200 g using the quartering method. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 3520-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 3520-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 3520-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 3520-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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