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YS/T 1115.8-2016 English PDF

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YS/T 1115.8-2016: (Methods for chemical analysis of copper ores and tailings - Part 8: Determination of magnesium content - Flame atomic absorption spectrometric method)
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
YS/T 1115.8-2016139 Add to Cart 3 days (Methods for chemical analysis of copper ores and tailings - Part 8: Determination of magnesium content - Flame atomic absorption spectrometric method) Valid

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YS/T 951   SN/T 3510   GB/T 8152.1   YS/T 1115.11   YS/T 1115.1   YS/T 1115.10   

Basic data

Standard ID: YS/T 1115.8-2016 (YS/T1115.8-2016)
Description (Translated English): (Methods for chemical analysis of copper ores and tailings - Part 8: Determination of magnesium content - Flame atomic absorption spectrometric method)
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: D42
Word Count Estimation: 6,657
Date of Issue: 2016-07-11
Date of Implementation: 2017-01-01
Regulation (derived from): Notice of the Ministry of Industry and Information Technology (2016 No. 37)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This standard specifies the method for determining the amount of magnesium in copper ore and tailings.

YS/T 1115.8-2016: (Methods for chemical analysis of copper ores and tailings - Part 8: Determination of magnesium content - Flame atomic absorption spectrometric 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.
(Methods for chemical analysis of copper ores and tailings - Part 8. Determination of magnesium content - Flame atomic absorption spectrometric method) ICS 73.060 D42 People's Republic of China non-ferrous metal industry standards Copper ores and tailings - Chemical analysis methods Part 8. Determination of magnesium content Flame atomic absorption spectrometry Methods for chemical analysis of copperores and tailings Part 8.Determinationofmagnesiumcontent 2016-07-11 released 2017-01-01 implementation Ministry of Industry and Information Technology of the People's Republic of China

Foreword

YS/T 1115-2016 "Copper ore and tailings chemical analysis method" is divided into the following 14 sections. --- Part 1. Determination of copper content by flame atomic absorption spectrometry; --- Part 2. Determination of lead content by flame atomic absorption spectrometry; --- Part 3. Determination of zinc content by flame atomic absorption spectrometry; --- Part 4. Determination of nickel content by flame atomic absorption spectrometry; --- Part 5. Determination of cobalt content by flame atomic absorption spectrometry; --- Part 6. Determination of cadmium content by flame atomic absorption spectrometry; --- Part 7. Determination of manganese content by flame atomic absorption spectrometry; --- Part 8. Determination of magnesium content by flame atomic absorption spectrometry; --- Part 9. Determination of sulfur content by high-frequency infrared absorption and combustion - potassium iodate titration; --- Part 10. Determination of phosphorus content molybdenum blue spectrophotometry; --- Part 11. Determination of molybdenum content thiocyanate spectrophotometry; --- Part 12. Determination of copper, lead, zinc, nickel, cobalt, cadmium, magnesium and manganese content; Inductively coupled plasma atomic emission spectrometry; --- Part 13. Determination of fluorine content ion selective electrode method and ion chromatography; --- Part 14. Determination of arsenic hydride generation atomic fluorescence spectrometry and potassium bromate titration. This section is the eighth part of YS/T 1115-2016. This section drafted in accordance with GB/T 1.1-2009 given rules. This part of the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized. This section mainly drafted unit. Beijing Mining and Metallurgy Research Institute. Participated in the drafting of this section. Anhui National Copper, Lead, Zinc and Products Quality Supervision and Inspection Center, Kunming Institute of Metallurgy, China Nonferrous Guilin Institute of Mineral Geology Co., Ltd., Zijin Mining Group Co., Ltd., Jinchuan Group Co., Ltd. The main drafters of this section. Han Xiao, Zhang Chen, Li Jinfeng, Jin Xiaofeng, He Gangjian, Liu Yingbo, Shi Hongjuan, Juan He, Huang Zhi, Qiu Sheng Xiang, Lin Cuifang, Yu Shengjie, Ma Yuping. Copper ores and tailings - Chemical analysis methods Part 8. Determination of magnesium content Flame atomic absorption spectrometry

1 Scope

YS/T 1115 provisions of this part of the copper ore and tailings Determination of magnesium content. This section applies to the determination of magnesium content of copper ore and tailings. The measurement range is 0.010% ~ 2.00%.

2 method summary

Sample with hydrochloric acid, nitric acid, hydrofluoric acid and perchloric acid decomposition. Hydrochloric acid dissolved salts, in dilute hydrochloric acid medium to strontium salt as a release agent in the original Absorption spectrometer at a wavelength of 285.2nm Department, the use of air - acetylene flame, measuring the absorbance of magnesium, calculated using the working curve of magnesium.

3 reagent

Unless otherwise noted, only reagents identified as superior grade pure are used in the analysis, all water used is distilled or deionized water or equivalent Water. 3.1 Hydrochloric acid (p = 1.19 g/mL). 3.2 Nitric acid (p = 1.42 g/mL). Hydrofluoric acid (ρ = 1.15 g/mL). 3.4 Perchloric acid (ρ = 1.67g/mL). 3.5 Hydrochloric acid (1 1). Nitric acid (1 1). 3.7 Strontium chloride solution (200g/L). Weigh 50g of strontium chloride in 400mL beaker, dissolved in water, transferred to 250mL volumetric flask with Dilute the water to the mark and mix well. 3.8 mg standard stock solution Weigh 0.1658g magnesia (wMgO ≥ 99.99%, pre-heated to 800 ℃ constant) placed 250mL Beaker, add 40mL nitric acid (3.6) dissolved completely, heated to remove nitrogen oxide boil, remove and cool to room temperature, transferred to 1000mL volume Volumetric flask, add 60mL of nitric acid (3.6), diluted with water to the mark, mix well. 1 mL of this solution contains 100 μg of magnesium. 3.9 mg standard solution Pipette 20.00mL magnesium standard stock solution (3.8), placed in.200mL volumetric flask, add 20mL hydrochloric acid (3.5), diluted with water to the mark, mix well. 1 mL of this solution contains 10 μg of magnesium.

4 instruments

Atomic absorption spectrometer, with magnesium hollow cathode lamp. Under the instrument working conditions, any atomic absorption spectrometer that can achieve the following indexes can be used. --- Characteristic concentration. In the solution and the test solution is basically the same, the characteristic concentration of magnesium should not exceed 0.020μg/mL; --- Precision. With the highest concentration of standard solution measured 10 times the absorbance, the standard deviation should not exceed 1.0% of the average absorbance; Measure the absorbance 10 times with the lowest concentration of the standard solution (not a "zero" standard solution) with a standard deviation of no more than the highest concentration
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