YB/T 6139.2-2023 PDF EnglishUS$140.00 · In stock · Download in 9 seconds
YB/T 6139.2-2023: Test methods for graphite-type negative electrode materials - Part 2: Determination of oil absorption value Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
YB/T 6139.2-2023: Test methods for graphite-type negative electrode materials - Part 2: Determination of oil absorption value---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/YBT6139.2-2023 YB FERROUS METALLURGICAL INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 29.050 CCS Q 50 Test methods for graphite-type negative electrode materials - Part 2: Determination of oil absorption value ISSUED ON: DECEMBER 20, 2023 IMPLEMENTED ON: JULY 01, 2004 Issued by: Ministry of Industry and Information Technology of the People's Republic of China. Table of ContentsForeword ... 3 1 Scope ... 4 2 Normative references ... 4 3 Terms and definitions ... 4 4 Principle ... 4 5 Reagents and materials ... 5 6 Instruments and equipment ... 5 7 Sample ... 5 8 Test steps ... 5 9 Test steps ... 6 10 Result calculation and data processing ... 6 11 Precision ... 7 12 Test report ... 7 Test methods for graphite-type negative electrode materials - Part 2: Determination of oil absorption value1 ScopeThis document specifies the principle, test preparation, test steps, result calculation and data processing, precision and test report for determination of the oil absorption value of graphite-type negative electrode materials using an oil absorption value tester. This document is applicable to the determination of oil absorption value of graphite negative electrode materials.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 8170, Rules of rounding off for numerical values and expression and judgement of limiting values GB/T 24533, Graphite negative electrode materials for lithium ion battery3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply. 3.1 oil absorption value Oil absorption value is also called oil absorption. It is a property that indicates the ability of powder to absorb oil. It usually refers to the minimum volume of oil required when 100 g of powder is completely wetted by linseed oil (also known as linseed oil or linseed oil) (in this document, it is defined as the volume of linseed oil added when the torque generated by the change in the viscosity characteristics of the mixture of powder and oil reaches 70% of the maximum value).4 PrinciplePlace a certain mass of the powder sample to be tested into the mixing chamber of the oil absorption value tester. Drop linseed oil on the sample at a constant speed. Use two rotating wings with different speeds to stir the sample simultaneously. As the volume of oil absorbed by the sample powder increases, the mixture of the sample and linseed oil changes from a free-flowing state to a semi-plastic agglomerate state. During this process, the viscosity of the mixture gradually increases and a peak value appears. The oil absorption value is calculated by the volume of linseed oil added when the torque generated by the change in the viscosity characteristics of the mixture reaches 70% of the maximum torque.5 Reagents and materials5.1 Linseed oil: analytically pure.6 Instruments and equipment6.1 Electronic balance: the minimum graduation value is 0.1 mg. 6.2 Oil absorption value tester: the rotation speed ratio of the two rotors is 2:1. The oil pump oil drop rate can be adjusted within the range of 1.0 mL/min~8.0 mL/min. The deviation is within ±0.5%.7 SampleFollow the requirements of GB/T 24533.8 Test steps8.1 Test conditions Laboratory environment temperature: (23±5)℃; humidity: ≤60%RH. The equipment and reagents used should be kept under laboratory environment conditions for 24 h. 8.2 Oil exhaust Before testing, the bubbles in the oil pipeline of the oil absorption value tester need to be removed. 8.3 Oil drop velocity calibration The oil drop velocity is calibrated according to formula (1). When the deviation between the measured value of m and the theoretical value is within ±0.5%, it is qualified. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of YB/T 6139.2-2023 be delivered?Answer: The full copy PDF of English version of YB/T 6139.2-2023 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of YB/T 6139.2-2023_English with my colleagues?Answer: Yes. The purchased PDF of YB/T 6139.2-2023_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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