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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5762-2024: Methods for chemical analysis of limestone, quicklime and hydrated lime for building materials industry Status: Valid GB/T 5762: Historical versions
Basic dataStandard ID: GB/T 5762-2024 (GB/T5762-2024)Description (Translated English): Methods for chemical analysis of limestone, quicklime and hydrated lime for building materials industry Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: Q11 Classification of International Standard: 91.100.10 Word Count Estimation: 34,313 Date of Issue: 2024-04-25 Date of Implementation: 2024-11-01 Older Standard (superseded by this standard): GB/T 5762-2012 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 5762-2024: Methods for chemical analysis of limestone, quicklime and hydrated lime for building materials industry---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 91:100:10 CCSQ11 National Standards of People's Republic of China Replaces GB/T 5762-2012 Limestone, quicklime and slaked lime for building materials Chemical analysis methods Released on 2024-04-25 2024-11-01 Implementation 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 Basic requirements for testing 1 5 Reagents and Materials 2 6 Instruments and Equipment11 7 Preparation of samples 13 8 Determination of loss on ignition---Ignition difference subtraction method 13 9 Determination of silicon dioxide --- ammonium chloride weighing method (standard method) 14 10 Determination of ferric oxide --- o-phenanthroline spectrophotometry (standard method) 14 11 Determination of aluminum oxide --- EDTA direct titration of iron and aluminum content (standard method) 15 12 Determination of calcium oxide --- EDTA titration method (standard method) 15 13 Determination of magnesium oxide --- atomic absorption spectrophotometry (standard method) 15 14 Determination of Titanium Dioxide --- Diantipyryl Methane Spectrophotometry (Standard Method) 16 15 Determination of potassium oxide and sodium oxide --- flame photometry (standard method) 16 16 Determination of total sulfur --- barium sulfate weighing method (standard method) 16 17 Determination of Chloride Ions --- Ammonium Thiocyanate Volumetric Method (Standard Method) 16 18 Determination of manganese monoxide --- potassium periodate oxidation spectrophotometry (standard method) 17 19 Determination of phosphorus pentoxide---phosphomolybdenum blue spectrophotometry (standard method) 17 20 Determination of carbon dioxide --- alkali asbestos absorption weighing method 17 21 Determination of quicklime A (CaO MgO) content --- hydrochloric acid titration method 17 22 Determination of effective calcium---sucrose calcium-hydrochloric acid titration method 17 23 Determination of the titration value of calcium carbonate in limestone --- hydrochloric acid back titration method 18 24 Determination of free silicon dioxide 19 25 Determination of silicon dioxide --- potassium fluorosilicate volumetric method (substitute method) 19 26 Determination of ferric oxide --- EDTA direct titration method (substitute method) 20 27 Determination of ferric oxide --- atomic absorption spectrophotometry (alternative method) 21 28 Determination of aluminum oxide --- direct titration method (substitute method) 21 29 Determination of Aluminum Oxide --- Copper Sulfate Back Titration Method (Substitute Method) 21 30 Determination of calcium oxide --- sodium hydroxide molten sample-EDTA titration method (substitute method) 22 31 Determination of magnesium oxide --- EDTA titration subtraction method (substitution method) 23 32 Determination of potassium oxide and sodium oxide --- atomic absorption spectrophotometry (alternative method) 23 33 Determination of total sulfur---coulometric titration (alternative method) 23 34 Determination of total sulfur --- infrared analysis method (alternative method) 24 35 Determination of Chloride Ions --- Ion Chromatography (Substitute Method) 25 36 Determination of chloride ion --- (automatic) potentiometric titration (substitution method) 25 37 Determination of manganese monoxide---Atomic absorption spectrophotometry (alternative method) 25 38 Determination of ferric oxide, aluminum oxide, magnesium oxide, titanium dioxide, potassium oxide, sodium oxide, manganese monoxide and phosphorus pentoxide --- Inductively coupled plasma optical emission spectrometry (surrogate method) 25 39 Silicon dioxide, ferric oxide, aluminum oxide, calcium oxide, magnesium oxide, titanium dioxide, potassium oxide, sodium oxide, manganese monoxide, Determination of phosphorus pentoxide and chloride ion---X-ray fluorescence analysis method (alternative method) 25 40 Determination of water-soluble chromium (VI) 25 41 Allowable difference 25ForewordThis 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: This document replaces GB/T 5762-2012 "Chemical analysis methods for limestone, quicklime and slaked lime for building materials" and GB/T 5762- Compared with:2012, in addition to structural adjustments and editorial changes, the main technical changes are as follows: a) The determination method of free silicon dioxide has been changed (see Chapter 24, Chapter 24 of the:2012 edition); b) Deleted the determination of chloride ion---phosphoric acid distillation-mercury salt titration method (alternative method) (Chapter 34 of the:2012 edition); c) Deleted the determination of carbon dioxide - automatic photoelectric titration method (alternative method) (Chapter 37 of the:2012 edition); d) Added the determination of total sulfur - infrared analysis method (alternative method) (see Chapter 34); e) Added the determination of chloride ion --- ion chromatography (alternative method) (see Chapter 35); f) Change the determination of chloride ion --- (automatic) potentiometric titration (alternative method) to "the analysis method shall be carried out in accordance with GB/T 176" (see Section 36 Chapter 35 of the:2012 edition); g) Added inductively coupled plasma emission spectrometry for the determination of ferric oxide, aluminum oxide, magnesium oxide, titanium dioxide, Potassium, sodium oxide, manganese monoxide, phosphorus pentoxide (substitute method) (see Chapter 38); h) Added X-ray fluorescence analysis method to determine silicon dioxide, iron oxide, aluminum oxide, calcium oxide, magnesium oxide, Titanium, potassium oxide, sodium oxide, manganese monoxide, phosphorus pentoxide, chloride ion (substitution method) (see Chapter 39); i) Added the determination of water-soluble chromium (VI) (see Chapter 40): 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 Cement Standardization Technical Committee (SAC/TC184): This document was drafted by: China National Testing Holding Group Co:, Ltd:, China 22nd Metallurgical Group Co:, Ltd:, Shenzhen Baoan District Housing and Construction Affairs Center, Guangxi Yongzheng Engineering Quality Inspection Co:, Ltd:, Shanghai Municipal Highway Engineering Inspection Co:, Ltd:, China Railway Construction The Group has Southern Engineering Co:, Ltd:, Liaocheng Xinyuan Group Co:, Ltd:, Quyang Jinyu Cement Co:, Ltd:, Jidong Cement Tongchuan Co:, Ltd:, Wuhan Han Product Quality Supervision and Inspection Building Materials Station, Jiangsu Construction Engineering Building Materials Quality Inspection Center Co:, Ltd:, Baoding Taihang Heyi Environmental Protection Technology Co:, Ltd: Baotou Jidong Cement Co:, Ltd:, Rigaku Electric Instruments (Beijing) Co:, Ltd:, Shandong Donghua Technology Co:, Ltd:, Jiayuguan Qilianshan Cement Co:, Ltd:, Anhui Menofu Technology Co:, Ltd:, Ningxia Zhongce Metrology Testing and Inspection Institute (Co:, Ltd:), Hunan Runyou Technology Development Co:, Ltd: Co:, Ltd:, Sinoma Pingxiang Cement Co:, Ltd:, and Yunnan Building Materials Product Quality Inspection Institute: The main drafters of this document are: Zhang Ge, Liang Huichao, Zhou Churong, Lu Juanjuan, Ye Anli, Du Xiaolong, Dai Ping, Yuan Song, Wang Ruihai, Li Yanchang, Zhang Huaitao, Zhang Qinghua, Sun Tao, Wang Yalan, Sun Changkun, He Lixin, Cui Jian, Li Qing, Hu Shuyan, Chen Jing, Wang Qi, Gao Dandan, Li Boran, Chen Jialun, Zhang Quan, Jiang Zhaohui, Liao Liping, Pan Li, Lei Zhen, Deng Chenghong, Li Fengwu, Zhu Shu, Wang Xiaojia, Kang Shengguo, Song Shixia, Wang Wei, Wang Xiaoyun, Fu Mengqi, Bi Tiegang, Jia Guolin, Zhang Dachun, Zhang Zhijuan, Liu Yamin, Wu Shasha, Liu Yiqiang, Lu Xiaoquan, Yu Kexiao, Duan Zhaohui, Ren Jingyi: This document was first issued in 1986, revised for the first time in:2000, revised for the second time in:2012, and this is the third revision: Limestone, quicklime and slaked lime for building materials Chemical analysis methods1 ScopeThis document describes reference and surrogate methods for the chemical analysis of limestone, quicklime, and hydrated lime: This document applies to the chemical analysis of limestone, quicklime and hydrated lime for building materials: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 to This document: GB/T 176 Chemical analysis methods for cement GB/T 2007:1 General rules for sampling and sample preparation of bulk mineral products Manual sampling method 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 values GB/T 28629 Chemical analysis method for free silicon dioxide in cement clinker GB 31893 Limits and determination methods of water-soluble chromium (VI) in cement JJG196 Commonly used glass measuring vessels3 Terms and definitionsThe following terms and definitions apply to this document: 3:1 efficaciouscalcium The total amount of free calcium oxide and calcium hydroxide under certain determination conditions: Note 1: Calcium carbonate, calcium silicate and other calcium salts are not included: Note 2: Quicklime is usually expressed as effective calcium oxide, and slaked lime is expressed as effective calcium hydroxide: 3:2 The total amount of calcium carbonate and magnesium carbonate in limestone: Note: It is expressed as the mass fraction of calcium carbonate:4 Basic requirements for the test4:1 Number of trials The number of tests for each determination is specified to be 2, and the absolute difference between the 2 results is within the allowable difference (Table 1) of the same laboratory: The average value of the test results represents the measurement result: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5762-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 5762-2024_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 5762-2024?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 5762-2024 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
