YS/T 710.3-2009Method for chemical analysis of cobalt oxide. Part 3: Determination of sulphur content. High frequency combustion-infrared absorption method (English PDF)
氧化钴化学分析方法 第3部分：硫量的测定 高频燃烧红外吸收法
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Issued by
Ministry of Industry and Information Technology
Level / Type
National · Recommended
Issue date
December 4, 2009
Implementation date
June 1, 2010
Scope
YS/T 710.3-2009 is the English-translated version of 氧化钴化学分析方法 第3部分：硫量的测定 高频燃烧红外吸收法.
YS/T 710.3-2009 — YS/T of the provisions of section 710 of the method for the determination of the sulfur content of cobalt oxide. This section applies to the determination of sulfur in the amount of cobalt oxide. Measurement range. 0.0050% to 0.100%.
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Document preview — YS/T 710.3-2009
National Standard of the People's Republic of China
- ICS
- 77.120.70
- Classification
- H 13
- Replacing
- YS/T 256-2000
Issued by: Ministry of Industry and Information Technology
Contents
- Foreword
- 1 Scope
- 2 Method summary
- 3 Reagents and materials
- 3.1 Scavenger
- 3.2 Flux
- 3.4 Standard steel samples
- 5.1 Instrument Preparation
- 5.2 Stability Instrument
Foreword
YS/T 710 "cobalt oxide chemical analysis method" is divided into six sections.
--- Part 1. Determination of cobalt content potentiometric titration;
--- Part 2. Determination of sodium content by flame atomic absorption spectrometry;
--- Part 3. Determination of the amount of sulfur by high frequency combustion infrared absorption method;
--- Part 4. Determination of arsenic content by atomic fluorescence spectrometry;
--- Part 5. Determination of silicon content - Molybdenum blue spectrophotometric method;
--- Part 6. calcium, cadmium, copper, iron, magnesium, manganese, nickel, lead and zinc content - Inductively coupled plasma atomic emission spectrometry.
This section YS/T Part 3 710.
The partial replacement of YS/T 256-2000 "cobalt oxide" in Appendix C. Compared with YS/T 256-2000 "cobalt oxide" Appendix C, Part the main changes are as follows.
--- Using high-frequency combustion infrared absorption method alternative polarography with;
--- Complements the precision and quality assurance and control provisions.
The non-ferrous metal part by the National Standardization Technical Committee and centralized.
This section is responsible for drafting unit. Zhuzhou Smelter Group Co., Ltd.
It participated in the drafting of this section. CRIMM, Zhejiang Huayou Cobalt Co. Ltd..
1 Scope
YS/T of the provisions of section 710 of the method for the determination of the sulfur content of cobalt oxide.
This section applies to the determination of sulfur in the amount of cobalt oxide. Measurement range. 0.0050% to 0.100%.
2 Method summary
In the presence of flux, high-frequency induction furnace and the oxygen flow, so that the sample burned at high temperatures, to generate sulfur dioxide gas into the red External absorption cell, after which the instrument automatically measure the absorption of infrared energy to calculate and display the results.
3 Reagents and materials
3.1 Scavenger
3.1.1 Anhydrous calcium chloride.
3.1.2 cotton.
3.2 Flux
3.2.1 sulfur, tin, tungsten. + Sn (0.2g + 1.5g).
3.2.2 low-sulfur tin, iron. Sn + Fe (0.20g + 0.40g), iron sulfur content should be 1100 °C high temperature furnace, cooling backup taken placed in the dryer (Valid for two days).
3.4 Standard steel samples
3.4.1 standard steel samples. a sulfur content of 0.0050% to 0.10%.
3.4.2 Standard steel or iron standard sample. a sulfur content of 4 Instrument
High-frequency infrared carbon and sulfur analyzer.
Table 1 instrument reference operating conditions
Oxygen purity oxygen pressure/MPa Oxygen flow L/min Analysis of gas flow L/min Carrying oxygen pressure valve MPa Oxygen Time/s analysis time/s High purity oxygen from 0.2 to 2.0 4.0 0.25 0.08 1535 Step 5 Analysis
5.1 Instrument Preparation
Recommended by instrument instruments stand ready condition.
5.2 Stability Instrument
5.2.1 to adjust and stabilize the instrument by burning several similar kind of sample to be tested.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 3 pages — is available in the English PDF.
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Related Standards
YS/T 710.1-2009 — Method for chemical analysis of cobalt oxide. Part 1: Determination of cobalt content. Potentiometric method
YS/T 710.2-2009 — Methods for chemical analysis of cobalt oxide. Part 2: Determination of sodium content. Flame atomic absorption spectrometry method
YS/T 710.4-2009 — Method for chemical analysis of cobalt oxide. Part 4: Determination of arsenic content. Atomic fluorescence spectrometry
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YS/T 710.3-2009
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