GB/T 9489-2024 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 9489-2024: Methods for chemical analysis of alundum powder Status: Valid GB/T 9489: Historical versions
Basic dataStandard ID: GB/T 9489-2024 (GB/T9489-2024)Description (Translated English): Methods for chemical analysis of alundum powder Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q62 Classification of International Standard: 91.100.10 Word Count Estimation: 26,264 Date of Issue: 2024-11-28 Date of Implementation: 2025-06-01 Older Standard (superseded by this standard): GB/T 9489-2008 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 9489-2024: Methods for chemical analysis of alundum powder---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.Methods for chemical analysis of alundum powder Chemical analysis method of corundum powder ICS 91.100.10 CCS Q 62 National Standard of the People's Republic of China Replace GB/T 9489-2008 Released on 2024-11-28 2025-06-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface ... V 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 General Requirements ... 1 5 Determination of calcium oxide, magnesium oxide, silicon dioxide, iron oxide and titanium dioxide by inductively coupled plasma emission spectrometry ... 2 5.1 Measurement range ... 2 5.2 Principle ... 2 5.3 Reagents 2 5.4 Instruments and Equipment ... 2 5.5 Analysis steps ... 3 5.6 Analysis results calculation ... 4 5.7 Allowable difference ... 4 6 Determination of ferric oxide, calcium oxide, magnesium oxide, potassium oxide and sodium oxide by atomic absorption spectrophotometry ... 4 6.1 Measurement range ... 4 6.2 Principle ... 4 6.3 Reagents 4 6.4 Instruments and Equipment ... 5 6.5 Analysis steps ... 5 6.6 Analysis results calculation ... 6 6.7 Allowable difference 6 7 Aluminum oxide complex titration-fluoride release method ... 6 7.1 Measurement range 6 7.2 Principle 6 7.3 Reagents 7 7.4 Instruments and Equipment ... 7 7.5 Analysis steps 7 7.6 Analysis results calculation 8 7.7 Allowable Difference 8 8 Determination of ferric oxide by colorimetric method ... 9 8.1 Measurement range 9 8.2 Principle 9 8.3 Reagents 9 8.4 Instruments and Equipment 9 8.5 Analysis Steps 9 8.6 Analysis results calculation 9 8.7 Allowable difference ... 10 9 Determination of Silica Colorimetry ... 10 9.1 Measurement range 10 9.2 Principle 10 9.3 Reagents 10 9.4 Instruments and Equipment 10 9.5 Analysis Steps 11 9.6 Analysis Results Calculation 11 9.7 Allowable Difference 11 10 Determination of Titanium Dioxide by Colorimetric Method ... 12 10.1 Measurement range ... 12 10.2 Principle ... 12 10.3 Reagents 12 10.4 Instruments and Equipment ... 12 10.5 Analysis Steps 12 10.6 Analysis results calculation ... 12 10.7 Allowable Difference 13 11 Determination of Chloride Ion Turbidimetry ... 13 11.1 Measurement range ... 13 11.2 Principle 13 11.3 Reagents 13 11.4 Instruments and Equipment ... 13 11.5 Analysis Steps ... 14 11.6 Analysis results calculation ... 14 11.7 Allowable Difference 14 12 Determination of Carbon and Sulfur ... 15 12.1 Measurement range ... 15 12.2 Principle ... 15 12.3 Reagents 15 12.4 Instruments and Equipment ... 15 12.5 Analysis Steps ... 15 12.6 Allowable Difference 15 13 Determination of pH value ... 16 13.1 Measurement range ... 16 13.2 Principle ... 16 13.3 Reagents 16 13.4 Instruments and Equipment ... 16 13.5 Analysis Steps ... 16 14 Determination of loss on ignition ... 16 14.1 Measurement range ... 16 14.2 Principle ... 16 14.3 Instruments and Equipment ... 16 14.4 Analysis Steps 16 14.5 Analysis results calculation ... 17 14.6 Allowable Difference 17ForewordThis 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 9489-2008 "Chemical analysis method of corundum powder". Compared with GB/T 9489-2008, in addition to the structural adjustment In addition to editorial changes, the main technical changes are as follows. Added "Warning" (see Warning); a) The concentration of "Silicon Dioxide Standard Solution" and the volume of the volumetric flask during the preparation process have been changed (see 5.3.8, 5.3.8 of the.2008 edition); b) The flame type of the elements "Ca, Mg" has been changed (see 6.4.4, 6.4.4 of the.2008 edition); c) Changed the "Test Solution Preparation" in the atomic absorption spectrophotometry (see 6.5.1, 6.5.1 of the.2008 edition); d) The order of adding "borax and sodium carbonate mixed flux" has been changed (see 7.5.1, 9.5.2.1, 7.5.1, 9.5.2.2 of the.2008 edition). 9.5.2.1); e) Added the requirement of “storage temperature” of silica standard solution (see 9.5.1, 9.5.2.2); f) The determination range of titanium dioxide colorimetric method has been changed (see 10.1, 10.1 of the.2008 edition); g) The volume of titanium dioxide standard solution to be pipetted in “Drawing the working curve” has been changed (see 10.5.1, 10.5.1 of the.2008 edition). h) 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 was 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. Shenyang Aluminum and Magnesium Design Institute Co., Ltd., Xianyang Non-metallic Mineral Research and Design Institute Co., Ltd., Central South University, Shaanxi General Team of China Building Materials Industry Geological Survey Center, China National Testing and Inspection Holding Group Xianyang Co., Ltd., Qinghai Geotechnical Engineering Survey Institute Co., Ltd., Xinjiang Corps of China Building Materials Industry Geological Exploration Center. The main drafters of this document are. Ouyang Jing, Li Zhiguo, Huang Fei, Zhu Xinjie, Shen Yinghui, Yang Ling, Hou Caihong, Zhang Honglin, Chen Jian, Zhu Meng, Yang Fei. This document was first published in 1988 as GB/T 9489.1~9489.10-1988 and was first revised in.2008 as GB/T 9489- 2008, this is the second revision. Chemical analysis method of corundum powder Warning - This document does not address all safety, health and environmental issues related to its use. The user is responsible for taking appropriate safety Safety, health and environmental protection measures, and ensure compliance with relevant national laws and regulations.1 ScopeThis document describes the content of aluminum oxide, calcium oxide, magnesium oxide, silicon dioxide, iron oxide, titanium dioxide, Determination methods for potassium, sodium oxide, chloride ion, carbon and sulfur, pH value and loss on ignition. This document is applicable to the chemical analysis of corundum powder with an aluminum oxide content (mass fraction) of not less than 90%.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 version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. in this document. GB/T 4676 Sampling method for common abrasives GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 8170 Rules for rounding off values and expression and determination of limit values3 Terms and definitionsThere are no terms or definitions that require definition in this document.4 General requirements4.1 The specifications of water used in solution preparation and analysis should conform to Grade III or above water specified in GB/T 6682. 4.2 Unless otherwise specified, the purity of the reagents used in the determination should be better than analytical grade. When a standard solution is prepared with a metal, its purity should be better than 99.99%. 4.3 Except for specially specified solvents, all solutions used in analysis are aqueous solutions. 4.4 When conducting the “constant weight” test, the burning or drying, taking out, drying, cooling, and weighing steps should be repeated at the same temperature. Continue until the difference between the two weighings is no more than 0.000 2 g. 4.5 The concentration of the standard titration solution is expressed as c(A)=mol/L or T(B)/(A)=mg/mL. When calibrating its concentration, Carry out more than three determinations and conduct blank test comparison. The relative error of the concentration obtained should not be greater than 0.20%. The arithmetic mean of the results is taken. And rounded to 4 decimal places. 4.6 When preparing and storing reagent solutions, reagents that are corrosive to glass should be stored in plastic containers, and reagents that are easily decomposed should be stored in Store in brown containers and indicate storage precautions and storage time. 4.7 A parallel blank test should be carried out for each test, and the analytical results should be corrected based on the blank test results. 4.8 The samples shall be sampled and divided according to GB/T 4676, and then ground with a corundum mortar to a particle size of no more than 75 μm. Mix well, put into sample bag, dry in electric drying oven at 105℃～110℃ for 1 h～2 h, take out, put into desiccator and cool to room temperature for use. 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