GB/T 22660.2-2008 English PDFUS$149.00 · In stock
Delivery: <= 2 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 22660.2-2008: Chemical analysis methods of lithium fluoride -- Part 2: Determination of moisture content -- Gravimetric method Status: Valid
Basic dataStandard ID: GB/T 22660.2-2008 (GB/T22660.2-2008)Description (Translated English): Chemical analysis methods of lithium fluoride -- Part 2: Determination of moisture content -- Gravimetric method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H60 Classification of International Standard: 77.120 Word Count Estimation: 5,586 Date of Issue: 2008-12-29 Date of Implementation: 2009-11-01 Quoted Standard: GB/T 22660.1-2008 Regulation (derived from): National Standard Approval Announcement 2008 No.23 (Total No.136) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the method for the determination of moisture content of lithium fluoride. This section applies to fluoride determination of moisture content of lithium. Measuring range: �� 0. 5%. GB/T 22660.2-2008: Chemical analysis methods of lithium fluoride -- Part 2: Determination of moisture content -- Gravimetric method---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. Chemical analysis methods of lithium fluoride Part 2. Determination of moisture content Gravimetric method. ICS 77.120 H60 National Standards of People's Republic of China Methods for chemical analysis of lithium fluoride Part 2. Determination of the content of water in the wet Gravimetric method Posted 2008-12-29 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 22660 "Methods for chemical analysis of lithium fluoride" is divided into eight sections. --- Part 1. Preparation and storage of test samples; --- Part 2. Determination of the weight of water in the wet method; --- Part 3. Determination of distillation of fluorine content - thorium nitrate volumetric method; --- Part 4. Determination of magnesium by flame atomic absorption spectrometry; --- Part 5. Determination of calcium content by flame atomic absorption spectrometry; --- Part 6. Determination of silicon dioxide content - Molybdenum blue spectrophotometric method; --- Part 7. Determination of iron oxide content phenanthroline spectrophotometry; --- Part 8. Determination of sulfate content of barium sulfate gravimetric method. This is Part 2 GB/T 22660 of. This part is proposed by the China Nonferrous Metals Industry Association. The non-ferrous metal part by the National Standardization Technical Committee. This section is responsible for drafting unit. Fluoride Chemicals Co., Ltd., China Nonferrous Metals Industry Standards and Metrology Institute for Quality. Participated in the drafting of this section. Hunan Nonferrous fluorine chemical limited liability company, Aluminum Corporation of China Zhengzhou Research Institute. The main drafters of this section. Shi Xiuhua, Xue Xu Jin, Zhou Xiaoping, Li Yongqiang, Guoxian Hui, Chen Yichun, Zhu Liang, Li Zhijian, Zhao Baofu, Even Mingxia. Methods for chemical analysis of lithium fluoride Part 2. Determination of the content of water in the wet Gravimetric method1 ScopeThis section GB/T 22660 specifies the method for determination of lithium fluoride hygroscopic water. This section applies to the determination of lithium fluoride in hygroscopic water. Measuring range. ≤0.5%.2 Normative referencesThe following documents contain provisions which, through reference GB/T 22660 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revised edition are not adapted to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated references, the latest edition of this adaptation section. GB/T 22660.1-2008 Chemical analysis methods of lithium fluoride - Part 1. Sample Preparation and Storage3 Method summaryThe sample was dried at 110 ℃ and measuring the amount of loss.4 Instrument4.1 weighing bottle. diameter 45mm, flat. 4.2 electric oven. capable of controlling the temperature of 110 ℃ ± 5 ℃.5 SampleThe specimen shall comply with GB/T 22660.1-2008 in 3.2 requirements. Step 6 Analysis 6.1 Sample Weigh 2.0g of the original sample (5), referred to as m1 0, accurate to 0.001g. 6.2 Determination of the number of Independently measured twice and averaged. 6.3 Determination 6.3.1 advance at 110 ℃ ± 5 ℃ in an electric oven (4.2) in the drying 2h, and cooled in a desiccator sample (6.1) into the weighing bottle (4.1), the lid was weighed (accurate to 0.001g), referred to as m1 2. 6.3.2 Place the sample weighing bottle (6.3.1) where the temperature was adjusted to 110 ℃ ± 5 ℃ in an electric oven, the lid of the bottle rack on top do not cover strict. At the same time placed in an oven with a diameter slightly larger than the weighing bottle table dish, bake 2h, remove the cap put on the table dish, and place all dry Dry vessel. After cooling, remove the sheet pan, cap tightly, and weighed (accurate to 0.001g), referred to as m1. 7. Calculation of analytical results According to formula (1) to calculate the mass fraction of water in the wet (%). ...... |
