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GB/T 5195.5-2017: Fluorspar -- Determination of total sulfur content -- Pipe furnace combustion iodic acid potassium titration method
Status: Valid GB/T 5195.5: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5195.5-2017 | English | 179 |
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Fluorspar -- Determination of total sulfur content -- Pipe furnace combustion iodic acid potassium titration method
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GB/T 5195.5-2017
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| GB/T 5195.5-2006 | English | 279 |
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Fluorspar -- Determination of total sulfur content -- The iodometric method after combustion
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GB/T 5195.5-2006
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| GB/T 5195.5-1985 | English | 199 |
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Methods for chemical analysis of fluor-spar--The combustion-potassium iodate volumetric method for the determination of total sulphur content
| Obsolete |
GB/T 5195.5-1985
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PDF similar to GB/T 5195.5-2017
Basic data | Standard ID | GB/T 5195.5-2017 (GB/T5195.5-2017) | | Description (Translated English) | Fluorspar -- Determination of total sulfur content -- Pipe furnace combustion iodic acid potassium titration method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Word Count Estimation | 9,927 | | Date of Issue | 2017-09-07 | | Date of Implementation | 2018-06-01 | | Older Standard (superseded by this standard) | GB/T 5195.5-2006 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's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 5195.5-2017: Fluorspar -- Determination of total sulfur content -- Pipe furnace combustion iodic acid potassium titration method
---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.
Fluorspar - Determination of total sulfur content - Pipe furnace combustion iodic acid potassium titration method
ICS 73.080
D52
National Standards of People's Republic of China
Replacing GB/T 5195.5-2006
Determination of total sulfur content of fluorite
Tube furnace combustion - potassium iodate titration
Pipefurnacecombustioniodicacidpotassium titrationmethod
2017-09-07 Posted
2018-06-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
GB/T 5195 is divided into 16 parts.
--- Part 1. Determination of fluorite calcium fluoride content EDTA titration and distillation - potentiometric titration;
--- Part 2. Determination of fluorite carbonate content;
--- Part 3. Fluorite 105 ℃ quality determination of the weight method;
--- Part 4. Determination of fluorite sulfide content iodometric method;
--- Part 5. Determination of total sulfur content of fluorite tube furnace combustion - potassium iodate titration;
--- Part 6. Determination of fluorite content of phosphorus spectrophotometry;
--- Part 7. Determination of zinc content of fluorite; atomic absorption spectrometry;
--- Part 8. Determination of fluorite silica content;
--- Part 9. Determination of weight loss of fluorite burning weight method;
--- Part 10. Determination of iron content of fluorite phenanthroline spectrophotometry;
--- Part 11. Determination of fluorspar content; Periodate spectrophotometry;
--- Part 12. Determination of arsenic content of fluorite; atomic fluorescence spectrometry;
--- Part 13. Determination of aluminum content of fluorite EDTA titration method;
--- Part 14. Determination of magnesium content of fluorite flame atomic absorption spectrometry;
--- Part 15. Determination of calcium, aluminum, silicon, phosphorus, sulfur, potassium, iron, barium and lead contents of fluorite; wavelength dispersive X - ray fluorescence spectrometry;
--- Part 16. Determination of fluorite silicon, aluminum, iron, potassium, magnesium and titanium content Inductively coupled plasma atomic emission spectrometry.
This section GB/T 5195 Part 5.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 5195.5-2006 "Determination of total sulfur content of fluorite burning iodine method." This section and GB/T 5195.5-
Compared to.2006, the main technical changes are as follows.
--- Modify the normative references (see Chapter 2,.2006 edition Chapter 2);
--- The amount of potassium iodate was changed from 0.223g to 0.2225g (see 4.7.1,.2006 version 4.6);
--- Increased titration of potassium iodate standard solution of the same standard/standard sample titration (see 4.7.2);
--- Results calculated instead of using standard titration solution concentration or titration calculated in two ways (see 8.1,.2006 edition 8
chapter);
--- Increasing the analysis of the results identified and expressed (see 8.2);
--- Added a normative Appendix A (see Appendix A).
This part is proposed by China Iron and Steel Association.
This part of the National Standardization Technical Committee Steel (SAC/TC183) centralized.
This section drafted by. Shougang Corporation, Shougang Shuicheng Iron and Steel (Group) Co., Ltd., Metallurgical Industry Information Standards Institute.
The main drafters of this section. Yang Zhiqiang, Zhang Lei, Song Peng heart, Liu Weiping, Long Guorong, Wu Liping, Cui Shuya, Guo Wei Wu, Lu Chunsheng.
This part replaces the standards previously issued as.
--- GB/T 5195.5-1985;
--- GB/T 5195.5-2006.
Determination of total sulfur content of fluorite
Tube furnace combustion - potassium iodate titration
Warning --- personnel should use this part of the formal laboratory work experience. This section does not indicate all possible safety issues
question. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the requirements of the relevant state laws and regulations.
1 Scope
GB/T 5195 provisions of this part of the tube furnace combustion - potassium iodate titration method for the determination of total sulfur content.
This section applies to the determination of total sulfur content in fluorite. The determination range (mass fraction) is 0.010% ~ 1.00%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 analytical laboratory water specifications and test methods
GB/T 8170 rounded repair rules and limit values of the representation and judgment
GB/T 12806 laboratory glassware single standard line capacity bottle
GB/T 12807 Laboratory glassware graduated pipette
GB/T 22564 fluorite sampling and sample preparation
3 principle
The sample is mixed with tungsten trioxide, heated and burned in a stream of nitrogen at 1200 ° C ± 25 ° C to convert sulfur in the sample to sulfur dioxide,
Potassium iodide - starch solution to absorb sulfur dioxide, potassium iodate standard titration solution titration.
4 Reagents and materials
Unless otherwise indicated in the analysis, the use of only approved analytical reagents and in line with GB/T 6682 provisions of three or more distilled water or
Its purity of water.
4.1 flux, tungsten trioxide (sulfur content less than 0.001%), powder.
4.2 carbon dioxide absorbent, particle size range 0.5mm ~ 2mm.
4.3 anhydrous magnesium perchlorate, particle size range 0.5mm ~ 2mm.
Hydrochloric acid, 1 66.
4.5 potassium iodide solution, 30g/L.
4.6 Starch solution, 20g/L.
Weigh 2g soluble starch in 300mL beaker, add 10mL water mixed, add 50mL boiling water, stirring constantly, heat
Boiling about 1min, diluted with water to 100mL after cooling, mix.
4.7 Potassium iodate standard titration solution.
a) Potassium iodate standard titration solution [c (1/6 KIO3) = 0.006237 mol/L]
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