YS/T 990.6-2014 English PDF

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YS/T 990.6-2014: Methods for chemical analysis of copper matte. Part 6: Determination of lead content. Atomic absorption spectromtry and Na2EDTA titration method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
YS/T 990.6-2014	239	Add to Cart	3 days	Methods for chemical analysis of copper matte. Part 6: Determination of lead content. Atomic absorption spectromtry and Na2EDTA titration method	Valid

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Basic data

Standard ID: YS/T 990.6-2014 (YS/T990.6-2014)
Description (Translated English): Methods for chemical analysis of copper matte. Part 6: Determination of lead content. Atomic absorption spectromtry and Na2EDTA titration method
Sector / Industry: Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.30
Word Count Estimation: 9,958
Date of Issue: 10/14/2014
Date of Implementation: 4/1/2015
Regulation (derived from): People's Republic of China Ministry of Industry and Information Technology Notice 2014 No. 63; Industry Standard Filing Notice 2014 No. 12 (Overall No. 180)
Issuing agency(ies): Ministry of Industry and Information Technology
Summary: This Standard specifies the method for the determination of lead content in matte. This section applies to the determination of copper in ice lead content. Method 1 Measuring range: 0.20% - 5.00%; Tier 2 Measuring range: 5.OO% ~ 10.00%.

YS/T 990.6-2014: Methods for chemical analysis of copper matte. Part 6: Determination of lead content. Atomic absorption spectromtry and Na2EDTA 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.
Methods for chemical analysis of copper matte Part 6. Determination of lead content Atomic absorption spectromtry and Na2EDTA titration method ICS 77.120.30 H13 People's Republic of China Nonferrous Metals Industry Standard Matte chemical analysis Part 6. Determination of lead content Atomic absorption spectrometry and titration Na2EDTA Part 6. Determinationofleadcontent- Issued on. 2014-10-14 2015-04-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

YS/T 990 "Methods for chemical analysis of copper matte" is divided into 18 parts. --- Part 1. Determination of copper content iodometry; --- Part 2. Determination of gold and silver atomic absorption spectroscopy and fire assay; --- Part 3. Determination of sulfur content - Gravimetric method and combustion titration method; --- Part 4. Determination of the amount of bismuth atomic absorption spectrometry; --- Part 5. Determination of the amount of fluorine ion selective electrode method; --- Part 6. Determination of lead content - Atomic absorption spectrometry and Na2EDTA titration; --- Part 7. Determination of cadmium content - Atomic absorption spectrometry; --- Part 8. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry, diethyl dithiocarbamate spectrophotometry silver And potassium bromate titration; --- Part 9. Determination of iron content dichromate method; --- Part 10. Determination of silicon dioxide content molybdenum blue spectrophotometric method and silicon potassium fluoride titration; --- Part 11. Determination of the amount of nickel atom absorption spectrometry; --- Part 12. Determination of the amount of chromium oxide of aluminum Azure S Spectrophotometry; --- Part 13. Determination of magnesium oxide content - Atomic absorption spectrometry; --- Part 14. Determination of the amount of zinc atomic absorption spectrometry and Na2EDTA titration; --- Part 15. Determination of antimony content - Atomic absorption spectrometry; --- Part 16. Determination of mercury content - Cold atomic absorption spectrometry; --- Part 17. Determination of the amount of cobalt atomic absorption spectrometry; --- Part 18. lead, zinc, nickel, arsenic, bismuth, antimony, calcium, magnesium, cadmium, cobalt content - Inductively coupled plasma atomic emission spectrometry. This section YS/T Part 6 990. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Zhongtiaoshan Nonferrous Metals Group Co., Ltd. Daye Nonferrous Metals Group Holdings Limited. Part 1 of this drafting unit. Tongling Nonferrous Metals Group Holdings Limited. Part 1 participated in the drafting unit. Hunan Nonferrous Metal Research Institute, Hangzhou Fuchunjiang Smelting Co., Baiyin Nonferrous Group Co. Ltd., Guangzhou Nonferrous Metal Research Institute, Yunnan Copper Co., Ltd., Ningbo People's Republic of China Exit Inspection and Quarantine, China Tianjin People's Republic of Exit Inspection and Quarantine, Yoshimitsu Copper Co., Ltd., Shandong. This section Method 2 drafting units. Daye Nonferrous Metals Group Holdings Limited. This section participated in the drafting Method 2. Beijing Mining Research Institute, Zhuzhou Smelter Group Co., Ltd., Yunnan Copper Co. shares The company, Hangzhou Fuchunjiang Smelting Co., Ltd., Shandong constant state Smelting Company. The main drafters of this Part 1. Ye Xin, Shao from and, Lvxi Xi, Xiao-Yan Chen, Yang Deli, Li Yan, Zhang Liao, aged Ling Dai Fengying, Jin Tao, Liu Mei, Yang Jinkun, Zhang in. The main drafters of this section Method 2. Costume drip - Wang Yongbin, Ho Mei, FAN Li new, advanced Feng, Zhang Ping, Liang Ningning, Hui Tang, Zheng Wenying, Zhang Liao, Gao Xiang, Magofuku red, Houhui Nan. Matte chemical analysis Part 6. Determination of lead content Atomic absorption spectrometry and titration Na2EDTA

1 Scope

This section YS/T 990 specifies the method for determination of lead content in matte. This section applies to the determination of copper ice lead content. Method 1 Measuring range. 0.20% - 5.00%; Method 2 measurement range. 5.00% ~ 10.00%. 2. Method 1. atomic absorption spectrometry 2.1 Method summary Sample by ammonium hydrogen fluoride, hydrochloric acid, nitric acid and bromine decompose in dilute nitric acid medium, using air - acetylene flame atomic absorption spectrometer wave Long lead absorbance measured at 283.3nm. 2.2 Reagents Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 2.2.1 hydrochloric acid (ρ = 1.19g/mL). 2.2.2 nitric acid (ρ = 1.42g/mL). 2.2.3 nitric acid (11). 2.2.4 perchloric acid (ρ = 1.67g/mL). 2.2.5 Ammonium hydrogen fluoride (saturated solution). 2.2.6 bromine. 2.2.7 Lead standard stock solution. Weigh 1.2500g metallic lead (wPb≥99.99%) in 250mL conical beaker, add 30mL of nitric acid (2.2.3), cover the surface of the dish low dissolved completely, add 25mL of nitric acid (2.2.3), diluted with water to 500mL volumetric flask, and mix. at this time 1mL 2.5mg solution containing lead. 2.2.8 Lead standard solution. Pipette 10mL lead standard stock solution (2.2.7) in 100mL flask, add 10mL of nitric acid (2.2.3), Dilute with water to volume, and mix. This solution 1mL containing 250μg lead. 2.3 instruments and equipment Atomic absorption spectrometer, with a lead hollow cathode lamp. Under optimum working conditions for those who can reach the following indicators can be used. --- Characteristic concentration. a solution in the measurement matrix consistent solution, characteristic concentration of lead should be less than 0.048μg/mL. --- Precision. standard solution with the highest concentration of 11 times the absorbance measurements, the standard deviation should not exceed the average absorbance of 1.0%; The lowest concentration of standard solution used (instead of "zero" concentration of the standard solution) 11 measuring the absorbance, which should not exceed the standard deviation 0.5% high standard solution absorbance. --- Linear curve. the curve according to concentration, divided into five sections, the absorbance difference between the highest and the lowest segment segment absorbance difference The ratio shall be not less than 0.85. ......

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