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GB/T 5121.15-2008: Methods for chemical analysis of copper and copper alloys -- Part 15: Determination of cobalt content
Status: Valid GB/T 5121.15: Evolution and historical versions
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| GB/T 5121.15-2008 | English | 209 |
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Methods for chemical analysis of copper and copper alloys -- Part 15: Determination of cobalt content
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GB/T 5121.15-2008
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| GB/T 5121.15-1996 | English | 239 |
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Copper and copper alloys--Determination of cobalt content
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GB/T 5121.15-1996
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PDF similar to GB/T 5121.15-2008
Basic data | Standard ID | GB/T 5121.15-2008 (GB/T5121.15-2008) | | Description (Translated English) | Methods for chemical analysis of copper and copper alloys -- Part 15: Determination of cobalt content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 9,995 | | Date of Issue | 2008-06-17 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 5121.15-1996; GB/T 13293.7-1991 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | 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 | | Summary | This standard specifies the method for determination of copper and copper alloys of cobalt content. This method is suitable for the determination of copper and copper alloys of cobalt content. Measuring range: 0. 00010% to 0. 0020%. Method Two flame atomic absorption spectrometry determination of the method provides copper and copper alloys of cobalt content. This method is suitable for the determination of copper and copper alloys of cobalt content. Measuring range: > 0. 0020% to 3. 00%. | GB/T 5121.15-2008: Methods for chemical analysis of copper and copper alloys -- Part 15: Determination of cobalt content
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Methods for chemical analysis of copper and copper alloys Part 15. Determination of cobalt content
ICS 77.120.30
H13
National Standards of People's Republic of China
Replacing GB/T 5121.15-1996
Partially replace GB/T 13293.7-1991
Copper and copper alloys -
Part 15. Determination of cobalt content
Posted 2008-06-17
2008-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 5121 "Copper and copper alloy chemical analysis method" a total of 27 sections.
--- Part 1. Determination of copper content;
--- Part 2. Determination of phosphorus content;
--- Part 3. Determination of lead content;
--- Part 4. Carbon, Determination of sulfur content;
--- Part 5. Determination of nickel content;
--- Part 6. Determination of bismuth content;
--- Part 7. Determination of arsenic content;
--- Part 8. Determination of oxygen content;
--- Part 9. Determination of iron content;
--- Part 10. Determination of tin content;
--- Part 11. Determination of zinc content;
--- Part 12. Determination of antimony content;
--- Part 13. Determination of aluminum content;
--- Part 14. Determination of manganese content;
--- Part 15. Determination of cobalt content;
--- Part 16. Determination of chromium content;
--- Part 17. Determination of beryllium content;
--- Part 18. Determination of magnesium content;
--- Part 19. Determination of silver content;
--- Part 20. Determination of zirconium content;
--- Part 21. Determination of titanium content;
--- Part 22. Determination of cadmium content;
--- Part 23. Determination of silicon content;
--- Part 24. selenium, tellurium content was measured;
--- Part 25. Determination of boron content;
--- Part 26. Determination of mercury content;
--- Part 27. Inductively coupled plasma atomic emission spectrometry.
This is Part 15.
This section includes a method, Method II.
This Part replaces GB/T 5121.15-1996 "Copper and copper alloys chemical analysis of cobalt content - Flame atomic absorption spectrometric
Law "and GB/T 13293.7-1991" Methods for chemical analysis of high purity copper cathode Zeeman effect electrothermal atomic absorption spectrometric method for the determination of iron, cobalt,
The amount of lead. "
This portion of the GB/T 5121.15-1996, GB/T 13293.7-1991 compared to the main changes are as follows.
--- One method of GB/T 13293.7-1991 amendment complements the quality assurance and control provisions, increasing the precision of the terms;
--- Second method is GB/T 5121.15-1996 amendments, the lower limit of the measurement range extends from 0.020 to 0.0020%, analysis Fan
Extending from the upper limit of around 1.00 to 3.00%, supplemented with quality assurance and control provisions, increasing the precision of the terms.
This part is proposed by the China Nonferrous Metals Industry Association.
The non-ferrous metal part by the National Standardization Technical Committee.
This section Chinalco Luoyang Copper Co., Ltd., Beijing General Research Institute of Mining and Metallurgy, China Nonferrous Metals Industry is responsible Institute of Standards Metrology and Quality
Drafted.
A method in this section was drafted by Beijing General Research Institute of Mining and Metallurgy.
A method in this section by the Guangzhou Research Institute of Nonferrous Metals, Peng Hui Yantai Copper Co., Ltd. participated in the drafting.
The main drafters of this section a method. Feng advanced Yangsu Zhi, Feng Yu Qing, high dielectric level, Sun Shuyuan.
The main part of a method of verification by. Dai Fengying, Zhangshi Tao, Lin Shan, Li Jinglan, Liu Tianping.
This section Method Two Chinalco Shenyang Nonferrous Metals Processing Co. drafted.
The second method section by the Beijing Nonferrous Metal Research Institute, Daye Nonferrous Metals Company Institute participated in the drafting.
Method Two main drafters of this section. Hao Zhang, Li Yamin, Liu Xia.
This section Method two main certifier. Lee Man Chi, Miss Li, Li Na, Li Xiaoyu.
This part of the standard replaces the previous editions are.
--- GB/T 5121.15-1996, GB/T 13293.7-1991.
Copper and copper alloys -
Part 15. Determination of cobalt content
Method 1 a Zeeman effect electrothermal atomic absorption spectrometry
1.1 Scope
This method specifies the method for determination of copper and copper alloy cobalt content.
This method is applicable to the determination of copper and copper alloy cobalt content. Measurement range. 0.00010% to 0.0020%.
1.2 Principle of the method
Sample was dissolved in nitric acid, a volume of the test solution injected into the electrothermal atomizer with Zeeman effect atomic absorption spectrometer
240.7nm wavelength measuring the absorbance of cobalt, calculated cobalt content by working curve method.
1.3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. experiment
The utensils were soaked 12h, washed thoroughly with water and nitric acid (1.3.3).
1.3.1 Copper (Cu mass fraction ≥99.99%, cadmium mass fraction < 0.00005%).
1.3.2 nitric acid (1 + 1).
1.3.3 nitric acid (1 + 19).
1.3.4 copper substrate solution (100g/L). Weigh 20.00g copper (1.3.1) into 400mL beaker was added in 160mL nitric acid
(1.3.2), Leng Rong. After the reaction was stopped by intense, low heat until completely dissolved, oxides of nitrogen purge boiling, cooled to room temperature. Moved
200mL volumetric flask, dilute with water to volume, and mix.
1.3.5 Storage cobalt standard solution. Weigh 0.1000g of cobalt metal (mass fraction ≥99.95%) placed in 150mL beaker, add 10mL
Nitrate (1.3.2), the cover sheet pan, heated until completely dissolved and cooled to room temperature. Transferred to 500mL volumetric flask, dilute to the mark with water, mix
uniform. This solution 1mL containing 200μg cobalt.
1.3.6 Cobalt Standard Solution A. Pipette 10.00mL cobalt standard stock solution (1.3.5) in 100mL flask, diluted with water to the mark,
Mix well. This solution 1mL containing 20μg cobalt.
1.3.7 Cobalt standard solution B. Pipette 5.00mL cobalt standard solution A (1.3.6) in 100mL volumetric flask, dilute to the mark with water, mix
uniform. This solution 1mL containing 1μg cobalt.
1.4 Instrument
1.4.1 graphite furnace atomic absorption spectrometer. with electrothermal atomizer, micro sampler or autosampler, cobalt hollow cathode lamp and Zeeman effect
Background correction shall devices.
1.4.2 The graphite furnace atomic absorption spectrometer should meet the following specifications.
--- Lowest sensitivity. curve used in the arithmetic series of standard solution of greatest concentration, absorbance should not be less than 0.300.
--- Correlation coefficient curve is not less than 0.995.
--- Low precision requirements. the highest concentration of standard solution, the absorbance measured 10 times, calculate the mean and standard deviation. The standard
Standard deviation should not exceed 1.5% of the average absorbance. The lowest concentration of standard solutions (not zero concentration standard solution
Solution), 10 times the absorbance measured, calculating the standard deviation. The standard deviation should not exceed the average absorbance of the highest concentration of the standard
0.5% of the value.
1.5 Sample
Sample processed into crumb-like.
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