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GB/T 5121.6-2008: Methods for chemical analysis of copper and copper alloys -- Part 6: Determination of bismuth content
Status: Valid GB/T 5121.6: Evolution and historical versions
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| GB/T 5121.6-2008 | English | 209 |
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Methods for chemical analysis of copper and copper alloys -- Part 6: Determination of bismuth content
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GB/T 5121.6-2008
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| GB/T 5121.6-1996 | English | 239 |
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Copper and copper alloys--Determination of bismuth content
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GB/T 5121.6-1996
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| GB/T 5121.6-1985 | English | RFQ |
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Methods for chemical analysis of copper--The potassium iodide photometric method for the determination of bismuth content
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GB/T 5121.6-1985
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PDF similar to GB/T 5121.6-2008
Basic data | Standard ID | GB/T 5121.6-2008 (GB/T5121.6-2008) | | Description (Translated English) | Methods for chemical analysis of copper and copper alloys -- Part 6: Determination of bismuth content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 9,970 | | Date of Issue | 2008-06-17 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 5121.6-1996; GB/T 13293.2-1991 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | |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 bismuth content. This method is applicable to the determination of bismuth content of copper and copper alloys. Measuring range: 0. 00001% 0. 00050%. Method Two flame atomic absorption spectrometry determination of the method provides copper and copper alloys of bismuth content. This method is applicable to the determination of bismuth content of copper and copper alloys. Measuring range: > 0. 00050% to 0. 0040%. | GB/T 5121.6-2008: Methods for chemical analysis of copper and copper alloys -- Part 6: Determination of bismuth content
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Methods for chemical analysis of copper and copper alloys Part 6. Determination of bismuth content
ICS 77.120.30
H13
National Standards of People's Republic of China
Replacing GB/T 5121.6-1996, GB/T 13293.2-1991
Copper and copper alloys -
Part 6. Determination of bismuth 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.
Part is divided into 6 sections.
This section includes a method, Method II.
This Part replaces GB/T 5121.6-1996 "Copper and copper alloys - Determination of bismuth content" and GB/T 13293.2-
1991 "Methods for chemical analysis of high purity copper cathode by Hydride Generation - Atomic Fluorescence Spectrometry Determination of bismuth content."
This portion of the GB/T 5121.6-1996, GB/T 13293.2-1991 compared to the main changes are as follows.
--- One method of GB/T 13293.2-1991 amendment complements the quality assurance and control provisions, increasing the precision of the terms;
--- Second method is GB/T 5121.6-1996 amended, 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 by the JCC Guixi Smelter, Beijing General Research Institute of Mining and Metallurgy drafted.
A part of this method by the Tongling Nonferrous Metals Group Holdings Co., Ltd. participated in the drafting.
The main drafters of this section a method. Percentage light cents Luqiu Lan Liang subsets, Luo Zhi, Tangshu Fang, in force.
The main part of a method of verification by. Fan Zhanfang, high red waves.
This section was drafted by the second method Beijing Nonferrous Metal Research Institute.
The second method section by the Tongling Nonferrous Metals Group Holdings Co., Jiangxi Copper Group, participated in the drafting.
Method Two main drafters of this section. Guang Yan Jiong, Zhang Li, Wang Kegang.
This section Method two main certifier. Chen Huiwen, Zhang Qianjiang, Liqin Mei accounted light cents.
This part of the standard replaces the previous editions are.
--- GB/T 5121.6-1996, GB/T 13293.2-1991.
Copper and copper alloys -
Part 6. Determination of bismuth content
1 a method Hydride Generation - Atomic Fluorescence Spectrometry
1.1 Scope
This method specifies the method for determination of copper and copper alloy of bismuth content.
This method is applicable to the determination of copper and copper alloy of bismuth content measurement range. 0.00001% 0.00050%.
1.2 Principle of the method
The sample is dissolved in nitric acid, with ammonia in the medium lanthanum hydroxide co-precipitation of bismuth and copper and the substrate separation, precipitation heat dissolved in hydrochloric acid. In the hydrogenation
Substance generator, bismuth is reduced to potassium borohydride as hydride with argon gas into the quartz furnace atomizer, the determination of bismuth in the atomic fluorescence spectrometer
The fluorescence intensity of the element.
1.3 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity.
1.3.1 nitric acid (1 + 1) pure class distinctions.
1.3.2 hydrochloric acid (ρ1.19g/mL) pure class distinctions.
1.3.3 hydrochloric acid (11 + 89).
1.3.4 ammonia (ρ0.90g/mL) BVⅢ level.
1.3.5 ammonia (5 + 95).
1.3.6 thiourea - ascorbic acid solution. Weigh 100g thiourea, 50g of ascorbic acid, dissolved in water and diluted to 1000mL, shake.
1.3.7 lanthanum nitrate (50g/L). Weigh 50 g of lanthanum nitrate dissolved in water 1000mL, shake.
1.3.8 solution of potassium borohydride (15g/L). Weigh 15g of potassium borohydride dissolved containing potassium hydroxide (5g/L) aqueous solution of 1000mL, shake
uniform. Using now.
1.3.9 bismuth standard stock solution. Weigh 0.1000g metal bismuth (Bi mass fraction ≥99.95%), low-temperature heating nitric acid dissolved in 10mL
(1.3.1), was added 90mL of nitric acid (1.3.1), cooled and transferred to 1000mL volumetric flask with water to volume, shake. This solution
1mL containing 100μg bismuth.
1.3.10 bismuth standard solution. Pipette 2.00mL bismuth standard stock solution (1.3.9) in 200mL flask, add hydrochloric acid (1.3.2)
20mL, diluted with water to the mark. This solution 1mL containing 1μg bismuth.
1.4 Instrument
1.4.1 atomic fluorescence spectrometer, with high-intensity hollow cathode lamp bismuth
1.4.2 Under optimum working conditions for those who reach the following indicators can be used.
--- Detection limit. not more than 2 × 10-9g/mL.
--- Precision. Bismuth standard solution measuring 10 times the fluorescence intensity 0.02μg/mL, the standard deviation should not exceed the average fluorescence intensity
5.0% degrees.
1.5 Sample
Sample processed into crumb-like.
1.6 Analysis Steps
1.6.1 Sample
Weigh 20.0g sample (1.5), accurate to 0.001g.
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