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GB/T 5121.5-2008: Methods for chemical analysis of copper and copper alloys -- Part 5: Determination of nickel content
Status: Valid GB/T 5121.5: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5121.5-2008 | English | 459 |
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Methods for chemical analysis of copper and copper alloys -- Part 5: Determination of nickel content
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GB/T 5121.5-2008
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| GB/T 5121.5-1996 | English | 399 |
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Copper and copper alloys--Determination of nickel content
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GB/T 5121.5-1996
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| GB/T 5121.5-1985 | English | RFQ |
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Methods fro chemical analysis of copper--The dimethylglyoxime photometric method for the determination of nickel content
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GB/T 5121.5-1985
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PDF similar to GB/T 5121.5-2008
Basic data | Standard ID | GB/T 5121.5-2008 (GB/T5121.5-2008) | | Description (Translated English) | Methods for chemical analysis of copper and copper alloys -- Part 5: Determination of nickel content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 20,220 | | Date of Issue | 2008-06-17 | | Date of Implementation | 2008-12-01 | | Older Standard (superseded by this standard) | GB/T 5121.5-1996; GB/T 13293.8-1991 | | Adopted Standard | ISO 1810-1976, MOD; ISO 4743-1984, MOD; ISO 4742-1984, MOD | | Regulation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 alloy nickel content. This method is suitable for the determination of copper and copper alloy nickel content. Measurement range: 0. 0001% to 0. 0010%. Method Two flame atomic absorption spectrometry determination of the method provides copper and copper alloy nickel content. This method is suitable for the determination of copper and copper alloy nickel content. Measuring range: > 0. 0010% to 1. 50%. Method three Na2EDTA titration method provides for the determination of copper and copper alloy nickel content. This method is suitable for the determination of copper and copper alloy nickel content. Measuring range | GB/T 5121.5-2008: Methods for chemical analysis of copper and copper alloys -- Part 5: Determination of nickel content
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Methods for chemical analysis of copper and copper alloys Part 5. Determination of nickel content
ICS 77.120.30
H13
National Standards of People's Republic of China
Replacing GB/T 5121.5-1996, GB/T 13293.8-1991
Copper and copper alloys -
Part 5. Determination of nickel content
(ISO 1810. 1976, ISO 4743. 1984, ISO 4742. 1984, Copperaloys-
Determinationofnickelcontent, MOD)
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 5.
This section includes a method, second method, Method three, four methods, methods V. Nickel content at 0.0001% ~ 45.00%, secondary
When cutting a recommended method, second method, Method three.
This section Method Four identical with ISO 1810. 1976 "nickel-copper alloys --- (low level) measurement --- dimethylglyoxime spectrophotometric
Law ", this section Method five identical with ISO 4743. 1984" Determination of nickel copper alloys --- --- Na2EDTA of potentiometric titration "Yuguo
Compared to international standards, it made the following editorial changes.
--- With a decimal point instead of a comma as the decimal point in the international standard ",". ",";
--- Use the "method" instead of "this International Standard";
--- Revised international standard-Africa legal units of measurement;
--- The formula, reg number, table number to re-annotate;
--- Remove the cover of the international standards, directory, foreword and introduction.
This section Method three modifications adopted ISO 4742. 1984 "nickel-copper alloys --- --- Determination of the weight of law," the main technical content
On the ISO 4742. 1984 the same structure does not correspond exactly to write. Specific technical difference in Appendix A, Appendix B.
This Part replaces GB/T 5121.5-1996 "Copper and copper alloys - Determination of nickel content" and GB/T 13293.8-
1991 "Methods for chemical analysis of high purity copper cathode Zeeman effect electrothermal atomic absorption spectrometric method for the determination of nickel content."
This portion of the GB/T 5121.5-1996, GB/T 13293.8-1991 compared to the main changes are as follows.
--- One method of GB/T 13293.8-1991 amendments by the measurement range from 0.0001% to 0.0001% 0.002% ~ ~
0.0010%, supplemented with quality assurance and control provisions, increasing the precision of the terms;
--- Second method is GB/T 5121.5-1996 "on the first chapter 1 flame atomic absorption spectrometry" amendment complements
Quality assurance and control provisions, increasing the precision of the terms;
--- Third, the method GB/T 5121.5-1996 in "The second method 2 Na2EDTA titration" amendment supplements the qualitative
Assurance and control provisions, increasing the precision of the terms;
--- Adds four. identical with ISO 1810. 1976 "nickel-copper alloys --- (low level) measurement --- dimethylglyoxime spectrophotometric
Of Law ";
--- Adds five. identical with ISO 4743. 1984 "nickel copper alloys --- --- Determination of titration."
This section in Appendix A, Appendix B is an informative annex.
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 Jiangxi Copper Group Co., Ltd. Peng Hui Yantai Copper Co., Ltd. participated in the drafting.
The main drafters of this section a method. Feng advanced, drunk gold treasure, Li Wanchun.
The main part of a method of verification of people. Percentage light cents Zhangshi Tao, Shen Guang Xin, Li Jinglan.
This section Second method, Method three copper drafted by the Northwest Gansu limited liability company.
This section Second method, Method three Chinalco Luoyang Copper Co., Daye Nonferrous Metals Design and Research Institute participated in the drafting.
Method Two main drafters of this section. Yang Yonggang, Zhao Yi.
This section Method two main certifier. Yaoqiao Ping, Li Xiaoyu, Tze, Liu Yan.
Method three main drafters of this section. Yang Yonggang, Zhao Yi, King Guards.
The method in this section are three main certifier. Yaoqiao Ping, Li Xiaoyu, Tze, Liu Yan.
This section method IV Method five Chinalco Luoyang Copper Co., Ltd., Beijing General Research Institute of Mining and Metallurgy, China Nonferrous Metals Industry Standards and Metrology
Quality Institute drafted.
This section method IV Method five main drafters. Zhang Jinghua, Lihua Chang, Yang Lijuan.
This section method IV Method five main certifier. Fu Bin, Xia Qing beads.
This part of the standard replaces the previous editions are.
--- GB/T 5121.5-1996, GB/T 13293.8-1991.
Copper and copper alloys -
Part 5. Determination of nickel 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 nickel content.
This method is applicable to the determination of copper and copper alloy nickel content. Measurement range. 0.0001% to 0.0010%.
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 at 232.0nm
Measuring the absorbance at a wavelength of nickel, calculated according to the quality of working curves of nickel score.
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 (1.3.2).
1.3.1 Copper (Cu mass fraction ≥99.99%, nickel content < 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 Nickel standard stock solution. Weigh 0.2000g of nickel (Ni mass fraction ≥99.95%) placed in 150mL beaker,
20mL of nitric acid (1.3.2), the cover sheet pan, on low heat until completely dissolved, cooled to room temperature. Transferred to 500mL volumetric flask, diluted with water
To the mark, and mix. This solution 1mL containing 400μg nickel.
1.3.6 Nickel standard solution A. Pipette 5.00mL Nickel standard stock solution (1.3.5) in 200mL volumetric flask, dilute to the mark with water,
Mix well. This solution 1mL containing 10μg nickel.
1.3.7 Nickel standard solution B. Pipette 10.00mL Nickel standard solution A (1.3.6) in 100mL volumetric flask, dilute to the mark with water, mix
uniform. This solution 1mL containing 1μg nickel.
1.4 Instrument
1.4.1 graphite furnace atomic absorption spectrometer. with electrothermal atomizer, micro sampler or autosampler, nickel 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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