GB/T 14849.9-2015 English PDF

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GB/T 14849.9-2015: Methods for chemical analysis of silicon metal -- Part 9: Determination of titanium content -- Diantipyryl methane spectrophotometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 14849.9-2015	149	Add to Cart	3 days	Methods for chemical analysis of silicon metal -- Part 9: Determination of titanium content -- Diantipyryl methane spectrophotometry	Valid

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Basic data

Standard ID: GB/T 14849.9-2015 (GB/T14849.9-2015)
Description (Translated English): Methods for chemical analysis of silicon metal -- Part 9: Determination of titanium content -- Diantipyryl methane spectrophotometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H12
Classification of International Standard: 77.120.10
Word Count Estimation: 7,765
Date of Issue: 2015-09-11
Date of Implementation: 2016-06-01
Quoted Standard: GB/T 6682; GB/T 8170
Regulation (derived from): National Standard Announcement 2015 No.25
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 determination of silicon in titanium content industry. This Standard applies to the determination of titanium content in the silicon industry, the measurement range (mass fraction): 0.0010% to 0.30%.

GB/T 14849.9-2015: Methods for chemical analysis of silicon metal -- Part 9: Determination of titanium content -- Diantipyryl methane spectrophotometry

---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 of silicon - Part 9. Determination of titanium content security for Pyrazoline methane spectrophotometry) ICS 77.120.10 H12 National Standards of People's Republic of China The method of chemical analysis of silicon Part 9. Determination of titanium content Two antipyrine DAM spectrophotometry Part 9. Determinationoftitaniumcontent- Issued on. 2015-09-11 2016-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 14849 "industrial silicon chemical analysis method" is divided into 11 parts. --- Part 1. Determination of iron content 1,10 phenanthroline spectrophotometry; --- Part 2. Determination of aluminum content of chromium Azure -S spectrophotometry; --- Part 3. Determination of calcium content by flame atomic absorption spectrometry, spectrophotometry Chlorophonazo Ⅰ; --- Part 4. Determination of impurity elements inductor coupled plasma atomic emission spectrometry; --- Part 5. Determination of impurity elements in the X-ray fluorescence spectrometry; --- Part 6. Determination of carbon content by infrared absorption method; --- Part 7. Determination of phosphorus content of phosphorus molybdenum blue spectrophotometric method; --- Part 8. Determination of copper content atomic absorption spectrometry; --- Part 9. Determination of titanium content security for DAM spectrophotometry; --- Part 10. Determination of mercury content by hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of hexavalent chromium content of diphenyl hydrazine spectrophotometry. This is Part 9 GB/T 14849 of. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the China Nonferrous Metals Industry Association. This part of the jurisdiction of the Chinese non-ferrous metals Standardization Technical Committee (SAC/TC243). This section is responsible for drafting unit. Kunming Metallurgy Research Institute. Participated in the drafting of this section. Yunnan Yongchang Silicon Industry Co., Ltd., Yunnan Province Exit Inspection and Quarantine, China Aluminum Co. Shares Zhengzhou Research Institute, Kunming Metallurgical Institute New Materials Co., Ltd., Zhejiang Hesheng Silicon Co., Ltd., Tongzhou Standards Technical Services Co., Ltd. The main drafters of this section. Zhaode Ping, Liuying Bo, Zhou Yun, Yang Yi, Liu Guangrong, Shi Lei, Liu Wei Li, An Zhongqing Zhou Ya, Nie Changhong, Zhu Xiang Kuang, as Zhao Jinbo, Huzhi Tao, Teng Yajun Zhang Jie, Cheng heap strong, Zhang Yunhui, Tang, Tang Shan. The method of chemical analysis of silicon Part 9. Determination of titanium content Two antipyrine DAM spectrophotometry Warnings. Reagents used in this test method is corrosive, be careful when operating! As splashed on the skin should immediately wash with water, Yan In severe cases should be treated immediately.

1 Scope

This section GB/T 14849 specifies the method for determination of titanium content in the silicon industry. This section applies to the determination of titanium content in the silicon industry, measurement range (mass fraction). 0.0010% to 0.30%.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 8170 repair value expressed about the rules and limit values \u200b\u200band judgment

3 Method summary

Samples with hydrofluoric acid, nitric acid dissolution, heightening acid and evaporated to remove smoke silicon and fluorine, add concentrated sulfuric smoke; in hydrochloric acid medium, plus anti Ascorbic acid solution of iron (Ⅲ) reduction of iron (Ⅱ), added two antipyrine DAM with the titanium to form a yellow complex, measured at a wavelength of 388nm Absorbance.

4 Reagents

Unless otherwise indicated, the use of analytical reagent only recognized in the analysis; the water is distilled or deionized water or equivalent purity, Shall comply with GB/T 6682's. 4.1 ammonium sulfate. 4.2 nitric acid (ρ = 1.42g/mL). 4.3 perchloric acid (ρ = 1.67g/mL). 4.4 Hydrofluoric acid (ρ = 1.15g/mL). 4.5 hydrochloric acid (ρ = 1.19g/mL). 4.6 sulfate (11). 4.7 nitric acid (11). 4.8 hydrochloride (11). 4.9 ascorbic acid solution (50g/L), the time is now equipped with. 4.10 two antipyrine DAM solution (25g/L), with 35% hydrochloric acid solution preparation (if necessary low heat to dissolve). As a result of low temperature ......

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