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YS/T 715.4-2009 English PDF

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YS/T 715.4-2009: Methods for chemical analysis of selenium dioxide. Part 4: Determination of burning residue. Gravimetric analysis
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
YS/T 715.4-2009	English	139	Add to Cart	2 days [Need to translate]	Methods for chemical analysis of selenium dioxide. Part 4: Determination of burning residue. Gravimetric analysis	Valid	YS/T 715.4-2009

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Basic data

Standard ID	YS/T 715.4-2009 (YS/T715.4-2009)
Description (Translated English)	Methods for chemical analysis of selenium dioxide. Part 4: Determination of burning residue. Gravimetric analysis
Sector / Industry	Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard	H12
Classification of International Standard	77.120.10
Word Count Estimation	4,446
Date of Issue	2009-12-04
Date of Implementation	2010-06-01
Regulation (derived from)	MIIT [2009] No. 66
Issuing agency(ies)	Ministry of Industry and Information Technology
Summary	This standard specifies: Determination of residue content selenium dioxide in the ignition. This standard applies to the amount of selenium dioxide residue on ignition measured. Residue on ignition when measured by the standard, according to sample size and specifications of the value obtained residue on ignition mass of not less than 1 mg, their measuring range: 0. 05% to 0. 25%.

YS/T 715.4-2009: Methods for chemical analysis of selenium dioxide. Part 4: Determination of burning residue. Gravimetric analysis

---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 selenium dioxide.Part 4. Determination of burning residue.Gravimetric analysis ICS 77.120.10 H12 People's Republic of China Nonferrous Metals Industry Standard Methods for chemical analysis of selenium dioxide Part 4. Determination of residue on ignition - Gravimetric method Posted 2009-12-04 2010-06-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 715 "selenium dioxide chemical analysis method" is divided into five parts. --- Part 1. Determination of the amount of selenium dioxide, sodium thiosulfate titration; --- Part 2. arsenic, cadmium, iron, mercury, lead content - Inductively coupled plasma atomic emission spectrometry; --- Part 3. Determination of chlorine content of silver chloride turbidimetric method; --- Part 4. residue on ignition - Gravimetric method; --- Part 5. water-insoluble content - Gravimetric method. This section YS/T Part 4 715. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This section is responsible for drafting unit. Tongling Nonferrous Metals Group Holdings Limited. This section is drafted. JCC. Participated in the drafting of this section. Guangzhou Research Institute of Nonferrous Metals, Tongling Nonferrous Metals Holding Group Co., Ltd. The main drafters of this section. Lu Lin, Sammy Ng, Xu Weidong, Huang Pu Ying, Dai Fengying, Luo Yongmei, Chen Huiwen. Methods for chemical analysis of selenium dioxide Part 4. Determination of residue on ignition - Gravimetric method

1 Scope

YS/T of the provisions of section 715 of the method for the determination of selenium dioxide content of the residue on ignition. This section applies to the determination of selenium dioxide residue on ignition amount. Residue on ignition measured by this standard, according to the sample volume and value calculation specifications Residue on ignition quality was not less than 1mg, its measurement range. 0.05% to 0.25%.

2 Method summary

Formed between the body and the use of sample material in a volatile residue, heat, oxygen difference in stability of the sample body completely Volatile, high-temperature burning to constant weight after weighing the quality of the residue.

3 Instrument

3.1 100mL ceramic crucibles. 3.2 high-temperature furnace. 0 ℃ ~ 1000 ℃. 3.3 Analysis of balance. a sense of the amount of 0.1mg. 3.4 dryer.

4 Sample

Sample required uniform, dry and seal intact. Step 5 Analysis 5.1 Sample In dry conditions, rapid weigh about 10g sample, accurate to 0.001g. 5.2 Determination Independent secondary measurement averaged. 5.2.1 The sample (5.1) has been placed within 550 ℃ ± 50 ℃ constant weight over 100mL ceramic crucible in the furnace is gradually heated until the sample Products subject completely volatilized. 5.2.2 Remove the crucible, placed in a high temperature furnace, the temperature was raised to 550 ℃ ± 50 ℃ burned to constant weight. 5.2.3 Remove cooled to about 200 deg.] C, placed in a desiccator, cooled to room temperature and weighed. Calculation results of the analysis of 6 Burning residue content of the mass fraction of burning residue burning residue and its value is expressed in%, according to formula (1). (1) Where. The results represent the third place after the decimal point to.

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