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YS/T 997.3-2014 English PDF

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YS/T 997.3-2014: Methods for chemical analysis of antimony-doped tin oxide. Part 3: Determination of chlorine content. Mercuric sulfocyanide spectrophotometry
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 997.3-2014	English	159	Add to Cart	3 days [Need to translate]	Methods for chemical analysis of antimony-doped tin oxide. Part 3: Determination of chlorine content. Mercuric sulfocyanide spectrophotometry	Valid	YS/T 997.3-2014

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Standard similar to YS/T 997.3-2014

YS/T 953.9 GB/T 3884.2 GB/T 3884.1 YS/T 997.2 YS/T 1011 YS/T 997.1

Basic data

Standard ID	YS/T 997.3-2014 (YS/T997.3-2014)
Description (Translated English)	Methods for chemical analysis of antimony-doped tin oxide. Part 3: Determination of chlorine content. Mercuric sulfocyanide spectrophotometry
Sector / Industry	Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H13
Classification of International Standard	77.120.60
Word Count Estimation	6,684
Date of Issue	10/14/2014
Date of Implementation	4/1/2015
Regulation (derived from)	People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This Standard specifies the method for determination of antimony doped tin oxide in the amount of chlorine. This section applies to the determination of antimony tin oxide doped amount of chlorine measurement range (mass fraction) of 0.030% to 0.40%.

YS/T 997.3-2014: Methods for chemical analysis of antimony-doped tin oxide. Part 3: Determination of chlorine content. Mercuric sulfocyanide 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.
Methods for chemical analysis of antimony-doped tin oxide Part 3. Determination of chlorine content Mercuric sulfocyanide spectrophotometry. ICS 77.120.60 H13 People's Republic of China Nonferrous Metals Industry Standard Antimony-doped tin oxide chemical analysis Part 3. Determination of chlorine content Thiocyanate mercury spectrophotometry Part 3. Determinationofchlorinecontent- Issued on. 2014-10-14 2015-04-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 997 "Methods for chemical analysis of antimony-doped tin dioxide," is divided into three parts. --- Part 1. Determination of tin content potassium iodate titration; --- Part 2. Determination of antimony content cerium sulfate titration; --- Part 3. Determination of chlorine content of thiocyanate mercury spectrophotometry. This section YS/T Part 3 997. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. Drafting this Part. Analysis and Testing Center of Guangxi, Liuzhou one hundred tough special Advanced Materials Co., Ltd., Guangxi Zhuang Autonomous Region of metallurgical products Quality Supervision, Inspection Station, Guilin University of Technology, Nanning Abacus detection technology limited liability company. The main drafters of this section. Zhang, Wei Li, agricultural Yong-ping, Xie Tao, Huangzhao Min, Liu Yongqiang, He Xiaohu, Pi-Hui, Huang Xusheng, Zhou Sulian, Mao Xiangen. Antimony-doped tin oxide chemical analysis Part 3. Determination of chlorine content Thiocyanate mercury spectrophotometry

1 Scope

YS/T 997 This part specifies the method for determination of antimony doped tin oxide in the amount of chlorine. This section applies to the determination of antimony tin oxide doped amount of chlorine measurement range (mass fraction) of 0.030% to 0.40%.

2 Method summary

In chlorine-free environment, in order to sample the molten sodium hydroxide at 700 ℃ decomposition, flooding adjust the acidity to about pH3, antimony precipitation And tin. Nitric acid solution, chloride quantitatively substituted thiocyanate mercury thiocyanate ions, released thiocyanate ions to ferric iron Brown-red iron thiocyanate ion generating compound, the absorbance is measured in a spectrophotometer at a wavelength of 460nm, the chlorine content was measured indirectly.

3 Reagents

Unless otherwise indicated, the reagents used for the standard analytical reagent, the water is a water GB/T 6682 stipulated; a chlorine-free environment The preparation and storage of reagents and solutions. 3.1 sodium hydroxide, pure class distinctions. 3.2 nitric acid (11), pure class distinctions. 3.3 Ammonia (11), pure class distinctions. 3.4 ethanol. 3.5 KCl, reference reagents, after 400 ℃ ~ 450 ℃ burn 30min, and cooled to room temperature in a desiccator. 3.6 ammonium ferric sulfate solution (100g/L). Weigh 50g of ammonium ferric sulfate, into 500mL beaker, add 500mL nitric acid (3.2) is dissolved, Mix well. 3.7 mercury thiocyanate solution (2g/L). Weigh 1g mercuricthiocyanate reference reagent, placed in 500mL anhydrous ethanol (3.4), mixing, placing 4h After filtration in a brown bottle to save. Prior to filtration, was added dropwise nitric acid (3.2) filter paper was washed 5 times with water until neutral. 3.8 Storage chlorine standard solution. Weigh 2.1028g potassium chloride (3.5), placed in 250mL beaker to dissolve the amount of water, transferred to 1000mL Volumetric flask, dilute with water to volume, and mix. This solution 1mL 1mg containing chlorine. 3.9 Chlorine Standard Solution A. Pipette 10.00mL chlorine standard stock solution (3.8), placed in 100mL volumetric flask, dilute to the mark with water, mix uniform. This solution 1mL containing 100μg chlorine. 3.10 chlorine standard solution B. Pipette 10.00mL chlorine standard solution A (3.9), placed in 100mL volumetric flask, dilute to the mark with water, mix uniform. This solution 1mL containing 10μg chlorine.

4 Instrument

Spectrophotometer.

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