GB/T 5195.13-2017 English PDF

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GB/T 5195.13-2017: Fluorspar -- Determination of aluminium content -- EDTA titration method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 5195.13-2017	199	Add to Cart	3 days	Fluorspar -- Determination of aluminium content -- EDTA titration method	Valid

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Basic data

Standard ID: GB/T 5195.13-2017 (GB/T5195.13-2017)
Description (Translated English): Fluorspar -- Determination of aluminium content -- EDTA titration method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D52
Classification of International Standard: 73.080
Word Count Estimation: 10,187
Date of Issue: 2017-09-07
Date of Implementation: 2018-06-01
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 5195.13-2017: Fluorspar -- Determination of aluminium content -- EDTA 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 aluminum content - EDTA titration method ICS 73.080 D52 National Standards of People's Republic of China Fluorite content - Determination of EDTA titration method 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 13. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by China Iron and Steel Association. This part of the National Standardization Technical Committee Steel (SAC/TC183) centralized. This part of the drafting unit. People's Republic of China Ningbo Exit Inspection and Quarantine, China Inspection and Certification Group Ningbo Co., Ltd., metallurgy Industrial Information Standards Institute. The main drafters of this section. Zheng Lin, Xie Jianmei, Cai Cao Sheng, Lin Li, Weng Donghai, Wang Qian, Liu Zaimei, Cui Shuya, Cao State Chau, Lu Chunsheng. Fluorite content - Determination of EDTA titration method 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

This section GB/T 5195 specifies the method of EDTA determination of aluminum content with ethylenediaminetetraacetic acid (EDTA) titration method. This section applies to the determination of aluminum content in fluorite. Measurement range (mass fraction) .0.20% ~ 3.00%.

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 14506.8 Methods for chemical analysis of silicate rocks Part 8. Determination of titanium dioxide GB/T 22564 fluorite sampling and sample preparation

3 principle

The sample was hydrofluoric acid - sulfuric acid - perchloric acid decomposition, evaporated to dry with potassium pyrosulfate melt. Hydrochloric acid solution made hydrochloric acid solution, add an excess EDTA and iron, aluminum, titanium plasma coordination, adjust the pH of about 4.5 to nitrosyl R salt as an indicator, the standard solution of copper sulfate titration The amount of EDTA, potassium fluoride to replace with aluminum, titanium coordination EDTA, titration with copper sulfate standard solution, measured aluminum, titanium, minus the amount of titanium Amount, that is, the content of aluminum.

4 Reagents and materials

Unless otherwise stated, only the reagents identified as analytical grade are used in the analysis. The water used shall meet the requirements of the secondary water of GB/T 6682 Claim. Hydrofluoric acid, ρ = 1.19 g/mL. 4.2 perchloric acid, ρ = 1.69g/mL. 4.3 Glacial acetic acid, ρ = 1.05 g/mL. 4.4 pyrosulfate potassium. 4.5 sulfuric acid solution, 1 1. 4.6 ammonia solution, 1 1. 4.7 hydrochloric acid solution, 1 9. 4.8 potassium fluoride solution, 100g/L. Weigh 20g potassium fluoride, dissolved in.200mL water. 4.9 Acetic acid-ammonium acetate buffer solution, pH = 4.5. Weigh 71g ammonium acetate dissolved in 500mL water, add 58.5mL glacial acetic acid (4.3), diluted with water to 1000mL, shake. ......

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