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YS/T 1046.2-2015 English PDF

YS/T 1046.2-2015 (YS/T1046.2-2015, YST 1046.2-2015, YST1046.2-2015)
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YS/T 1046.2-2015English209 Add to Cart 3 days [Need to translate] Methods for chemical analysis of copper slag concentrates - Part 2: Determination of gold and silver contents - Atomic absorption spectrmetry and fire assay method Valid YS/T 1046.2-2015


BASIC DATA
Standard ID YS/T 1046.2-2015 (YS/T1046.2-2015)
Description (Translated English) Methods for chemical analysis of copper slag concentrates. Part 2: Determination of gold and silver contents. Atomic absorption spectrmetry and fire assay method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.60
Word Count Estimation 9,912
Date of Issue 2015-04-30
Date of Implementation 2015-10-01
Drafting Organization Daye Nonferrous Metals Group Holdings Limited, Zhongtiaoshan Nonferrous Metals Group Limited
Administrative Organization National Non-Ferrous Metals Standardization Technical Committee (SAC/TC 243)
Regulation (derived from) Ministry of Industry and Information Technology Announcement (2015 No. 28)
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This standard specifies the determination of silver content in copper slag concentrates. This standard is applicable to the determination of silver in copper slag concentrates. Method 1 has the following detection range: 20.0g/t ~ 400.0g/t; Method 2: Au0.50g/t ~ 10.00g/t and Ag 50.0g/t ~ 400.0g/t. The content of Ag in the fresh slag concentrate is in the range of 20.0g/t ~ 50.0g/t.

Standards related to: YS/T 1046.2-2015

YS/T 1046.2-2015
Methods for chemical analysis of copper slag concentrates - Part 2. Determination of gold and silver contents-Atomic absorption spectrmetry and fire assay method
ICS 77.120.60
H13
People's Republic of China Nonferrous Metals Industry Standard
Methods for chemical analysis of copper concentrates Slag
Part 2. Gold and silver content determination
Atomic absorption spectroscopy and fire assay gravimetric method
Part 2. Determinationofgoldandsilvercontents-
Issued on. 2015-04-30
2015-10-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
YS/T 1046-2015 "copper slag concentrates chemical analysis method" is divided into seven sections.
--- Part 1. Determination of copper content iodometry;
--- Part 2. Determination of gold and silver atomic absorption spectroscopy and fire assay gravimetric method;
--- Part 3. Determination of sulfur content of combustion titration method;
--- Part 4. Determination of iron content dichromate method;
--- Part 5. Determination of the amount of silica silicon potassium fluoride titration;
--- Part 6. aluminum oxide content - Inductively coupled plasma atomic emission spectrometry;
--- Part 7. arsenic, antimony, bismuth, lead, zinc, magnesium oxide content - Inductively coupled plasma atomic emission spectrometry.
This is Part 2.
This section is in accordance with GB/T 1.1-2009 given rule drafting.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section is responsible for drafting unit. Daye Nonferrous Metals Group Holdings Limited, Zhongtiaoshan Nonferrous Metals Group Co., Ltd.
This section is drafted. Daye Nonferrous Metals Group Holdings Limited.
Part 1 participated in the drafting unit. Beijing Mining Research Institute, Zhongtiaoshan Nonferrous Metals Group Co., Ltd., Beijing Nonferrous Metal RESEARCH
Study General Hospital, Tongling Nonferrous Metals Group Holdings Co., Jiangxi Copper Holdings Limited, Yanggu Yoshimitsu Copper Co., Chenzhou City Jingui Silver
Industry Co., Ltd.
This section participated in the drafting Method 2. Beijing Mining Research Institute, Zhongtiaoshan Nonferrous Metals Group Co., Ltd., Tongling Nonferrous Metals collection
Group Holdings Ltd., shares of Jiangxi Copper Company Limited, Yanggu Yoshimitsu Copper Co., Chenzhou City Jingui Silver Industry Co., Ltd., Hunan has
Ferrous metals research institute.
The main drafters of this Part 1. Hujun Kai Guo Jing, Li Xiaoyu Shi Bo Yang, Feng Zhenhua, often Ji Xiang, Qin Yuying, Su Zhixia, Shizhi Lan,
Million pairs, Qi month flower, Liao Xiaohui, Liu Zhou Lie, Xiao-Yan Chen, Cheng Haoyu, Tong Ling.
The main drafters of this section Method 2. Wang Yongbin, Feng new, Xiongmei Yu, Yuangong Qi, Liu Qiubo, Wanghao Ying, Dong Junlong, Zhang Yu, Chen Yao,
Cattle Kim, million pairs, Wushou Zhong, Liao Xiaohui, Liu Zhou Lie, Zhou Weiping, Wang real rich, Li Bing, Shen New.
Methods for chemical analysis of copper concentrates Slag
Part 2. Gold and silver content determination
Atomic absorption spectroscopy and fire assay gravimetric method
1 Scope
YS/T 1046 This section specifies the method for determination of copper slag concentrate silver content.
This section applies to the determination of copper slag concentrate silver content. 1 measuring range of 20.0g/t ~ 400.0g/t; Method 2 Determination Fan
Wai is Au0.50g/t ~ 10.00g/t, Ag50.0g/t ~ 400.0g/t.
Copper slag content of silver in concentrate 20.0g/t ~ 50.0g/t range, with this method of arbitration.
2 1 atomic absorption spectrometry silver
2.1 Method summary
Sample with nitric acid, perchloric acid dissolved in hydrochloric acid medium, by atomic absorption spectrometer wavelength at 328.1nm, air - acetylene flame
Measuring the absorbance of silver, with a deuterium lamp deduct background absorption, according to the standard curve method to calculate the amount of silver.
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 Ammonium hydrogen fluoride.
2.2.2 hydrochloric acid (ρ = 1.19g/mL).
2.2.3 hydrochloric acid (19).
2.2.4 nitric acid (ρ = 1.42g/mL).
2.2.5 nitric acid (11).
2.2.6 perchloric acid (ρ = 1.67g/mL).
2.2.7 Silver standard stock solution. Weigh 0.5000g metallic silver (wAg≥99.99%) in 200mL beaker, add 20mL of nitric acid
(2.2.5), heated until completely dissolved, cooled to room temperature and transferred to 1000mL brown volumetric flask, diluted with water, no chlorine ions to the mark, and mix.
This solution 1mL containing 500μg silver.
2.2.8 Silver standard solution. Pipette 5.00mL silver standard stock solution (2.2.7) in 250mL flask, diluted with hydrochloric acid (2.2.3) to
Volume, and mix. This solution 1mL containing 10μg silver.
2.3 Instrument
Atomic absorption spectrometer, with a silver hollow-cathode lamp.
Under optimum working conditions for those who can reach the following indicators can be used.
--- Characteristic concentration. in the measurement sample solution matrix consistent solution, features silver concentration should be less than 0.018μg/mL.
--- Precision. measuring the absorbance of 11 with the highest concentration of the standard, the standard deviation should not exceed the average absorbance of 1.0%, with
Solubility lowest concentration standard (not "zero" standard solubility) measuring the absorbance of 11 times, the standard deviation should not exceed the maximum concentration standard
0.5% average standard solution absorbance.
--- Linear curve. the curve according to concentration, divided into five segments, segment than the absorbance difference between the highest and the lowest section of the absorbance difference
Not less than 0.85.
...