GB/T 32573-2016 English PDF

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GB/T 32573-2016: Silicon powder -- Determination of total carbon content -- Infrared absorption method after combustion in an induction furnace
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32573-2016	219	Add to Cart	3 days	Silicon powder -- Determination of total carbon content -- Infrared absorption method after combustion in an induction furnace	Valid

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Basic data

Standard ID: GB/T 32573-2016 (GB/T32573-2016)
Description (Translated English): Silicon powder -- Determination of total carbon content -- Infrared absorption method after combustion in an induction furnace
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H82
Classification of International Standard: 29.045
Word Count Estimation: 11,167
Date of Issue: 2016-02-24
Date of Implementation: 2016-11-01
Regulation (derived from): National Standard Announcement No
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

GB/T 32573-2016: Silicon powder -- Determination of total carbon content -- Infrared absorption method after combustion in an induction furnace

---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.
Silicon powder - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace ICS 29.045 H82 National Standards of People's Republic of China Determination of total carbon content of silica fume After induction furnace combustion infrared absorption method Issued on. 2016-02-24 2016-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. The standard equipment by the National Standardization Technical Committee and the semiconductor material (SAC/TC203) and focal points. This standard was drafted. National Solar PV Product Quality Supervision and Inspection Center (Wuxi City Product Quality Supervision and Inspection Center), Jiangsu Zhongneng Polysilicon Technology Development Co., Ltd., LDK Solar Technologies Ltd., China Electronics Standardization Institute, Luoyang Sino-silicon high-tech Co., Ltd. The main drafters of this standard. He Li, Xu Minxiu, Zhou Ying, Yao Feng flowers, Liu Xiaoxia, Lu Wenfeng, Yuan Kateb, Yang Jun, Jiang Wei, Wang Meijuan, Huangxue Wen, Zhang Mei, Fengya Bin, Peikuai Chuan, Caojun Ying, Xie Qin. Determination of total carbon content of silica fume After induction furnace combustion infrared absorption method

1 Scope

This standard specifies the use of induction furnace fume Determination of total carbon content of the infrared absorption method after combustion. This standard applies to the determination of the production of polysilicon materials in the total carbon content of the silicon powder. Determination of the range of 0.001% to 1.0% (mass fraction).

2 Normative references

The following documents for the application of this document is essential. For cited documents with dates, only the dated edition applies to this document. For undated references, the latest edition (including any amendments) applies to this document. GB/T 6379.2-2004 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard methods of measurement repeatability and reproducibility of the basic method Laboratory use specifications and test methods GB/T 6682-2008 Analysis JJG395 Dingtan fixed sulfur analyzer test procedures YS/T 724-2009 silica fume YB/T 4145 carbon and sulfur analyzer dedicated crucible

3 Method summary

Sample in a high frequency induction furnace, which leads to oxygen gas stream at high temperature, under the conditions of flux and there is the presence of other additives, and is converted to carbon dioxide and/or carbon monoxide, airflow measurement of carbon dioxide and/or carbon monoxide the infrared absorption spectrum, and thus calculate the carbon content of the test samples.

4 Reagents and materials

4.1 water. before non-carbonated, use complies with GB/T 6682-2008 requirements tertiary water boiled 30min, equipped with a soda lime drying tube rubber-stoppered bottle, cooled to room temperature, pass oxygen (4.2) blow bubble 15min. 4.2 Oxygen. purity (volume fraction) should be not less than 99.5% purity (volume fraction) the determination of carbon content of 0.001% to 0.01% when the sample shall be not less than 99.995%. 4.3 iron. a particle size of not more than 1.25mm, size recommended range 0.4mm ~ 0.8mm, carbon content (mass fraction) should be less than 0.0005%. Anhydrous sodium carbonate 4.4. certified reference materials, anhydrous sodium carbonate prior to use (mass fraction greater than 99.9%) and dried 2h at 285 ℃ ± 5 ℃, and placed in the dryer to cool and set aside. 4.5 sodium carbonate standard solution. 1mL containing 2.50mg carbon. Weigh 5.5152g sodium carbonate (4.4), accurate to 0.1mg, dissolved in 200mL water (4.1) and quantitatively transferred to 250mL volumetric flask with water (4.1) diluted to the mark, and mix. 4.6 tin flux. special carbon and sulfur high-purity tin particles, tin content (mass fraction) should be greater than 99.8%, particle size 0.4mm ~ 0.8mm, carbon content (mass fraction) should be less than 0.0005%. ......

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