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GB/T 5121.8-2024: Methods for chemical analysis of copper and copper alloys - Part 8: Determination of oxygen, nitrogen and hydrogen contents
Status: Valid GB/T 5121.8: Evolution and historical versions
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| GB/T 5121.8-2024 | English | 359 |
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Methods for chemical analysis of copper and copper alloys - Part 8: Determination of oxygen, nitrogen and hydrogen contents
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GB/T 5121.8-2024
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| GB/T 5121.8-2008 | English | 279 |
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Methods for chemical analysis of copper and copper alloys -- Part 8: Determination of oxygen content
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GB/T 5121.8-2008
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| GB/T 5121.8-1996 | English | 199 |
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Copper and copper alloys--Determination of oxygen content
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GB/T 5121.8-1996
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| GB/T 5121.8-1985 | English | RFQ |
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Methods for chemical analysis of copper--The pulse heating-coulometric method for the determination of oxygen content
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GB/T 5121.8-1985
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Basic data | Standard ID | GB/T 5121.8-2024 (GB/T5121.8-2024) | | Description (Translated English) | Methods for chemical analysis of copper and copper alloys - Part 8: Determination of oxygen, nitrogen and hydrogen contents | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.30 | | Word Count Estimation | 18,167 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Older Standard (superseded by this standard) | GB/T 5121.8-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 5121.8-2024: Methods for chemical analysis of copper and copper alloys - Part 8: Determination of oxygen, nitrogen and hydrogen contents
---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.
ICS 77:120:30
CCSH13
National Standards of People's Republic of China
Replaces GB/T 5121:8-2008
Chemical analysis methods for copper and copper alloys
Part 8: Determination of oxygen, nitrogen and hydrogen content
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document is part 8 of GB/T 5121 Chemical analysis methods for copper and copper alloys: GB/T 5121 has been published in the following parts:
--- Part 1: Determination of copper content;
--- Part 2: Determination of phosphorus content;
--- Part 3: Determination of lead content;
--- Part 4: Determination of carbon and 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, nitrogen and hydrogen 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: Determination of selenium and tellurium content;
--- Part 25: Determination of boron content;
--- Part 26: Determination of mercury content;
--- Part 27: Inductively coupled plasma atomic emission spectrometry;
--- Part 28: Determination of chromium, iron, manganese, cobalt, nickel, zinc, arsenic, selenium, silver, cadmium, tin, antimony, tellurium, lead and bismuth content by inductively coupled plasma
Daughter mass spectrometry;
--- Part 29: Determination of aluminum oxide content:
This document replaces GB/T 5121:8-2008 "Chemical analysis methods for copper and copper alloys Part 8: Determination of oxygen content" and
Compared with GB/T 5121:8-2008, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) The oxygen measurement range has been changed from "0:00030%~0:11%" to "0:00030%~0:600%" (see Chapter 1,:2008
Chapter 1 of the:2011 edition);
b) The schematic diagram of the graphite crucible has been deleted (see Figure 1 of the:2008 edition);
c) Added the method for determining nitrogen content by inert gas fusion-thermal conductivity method (see Chapter 4);
d) The instrument schematic diagram (see Figure 2 of the:2008 edition) was deleted;
e) Added the method of determining hydrogen content by inert gas fusion-infrared absorption method or thermal conductivity method (see Chapter 5);
f) Added test report (see Chapter 6);
g) Quality assurance and control (see Chapter 9 of the:2008 edition) has been deleted:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by China Nonferrous Metals Industry Association:
This document is under the jurisdiction of the National Technical Committee on Standardization of Nonferrous Metals (SAC/TC243):
This document was drafted by: China Aluminum Luoyang Copper Processing Co:, Ltd:, Luoyang Ship Material Research Institute (China Shipbuilding Industry Corporation No: 72
No: 5 Research Institute), Jinchuan Group Co:, Ltd:, Nonferrous Metals Technology and Economic Research Institute Co:, Ltd:, Shandong Zhongjin Lingnan Copper Co:, Ltd:
Ren Company, Guangdong Academy of Sciences Industrial Analysis and Testing Center, National Standard (Beijing) Inspection and Certification Co:, Ltd:, Shaoxing Quality and Technical Supervision Inspection Institute,
Zhejiang Metallurgical Products Quality Inspection Station Co:, Ltd:, China Aluminum Materials Application Research Institute Co:, Ltd:, Shanghai Nonferrous Metals Industry Technology Monitoring Center
Co:, Ltd:, CNMC Zhengrui (Shandong) Copper Co:, Ltd:, Liaocheng Product Quality Supervision and Inspection Institute, Shandong Pinguan Testing Technology Service Co:, Ltd:
Co:, Ltd:, Yunnan Copper Co:, Ltd:
The main drafters of this document are: Li Shaowen, Liu Pan, Zhang Yanbo, Hu Jiayan, Wang Shidong, Han Zhiwei, Yuan Lili, Wang Changhua, Zhuang Aichun, Cheng Liexin,
Yu Genghua, Feng Dan, Zhu Yun, Guo Lili, Zhang Ke, Liu Guanghui, Yue Haofeng, Yuan Apeng, Zhang Yi, Xu Yanyan, Ren Min, Liu Ruotong, Luo Tiechu, Yu Ximeng,
Hua Jie, Zhang Huilin, Gu Bo, Tang Yuqiu, Chen Qianqian, Zhao Furong, Kong Hongtao, Chen Xiongfei, Shen Fanghong, Xu Chenxi:
The previous versions of this document and the documents it replaces are as follows:
---First issued in 1985 as GB 5121:8-1985, first revised in:1996, second revised in:2008;
---This is the third revision:
Introduction
Copper and copper alloys are widely used in
Power, electronics, transportation, shipbuilding, aerospace, machinery, petrochemical, new energy and other fields: GB/T 5121 aims to establish
A complete and feasible set of chemical composition analysis methods and standards suitable for the research and development, production and trade needs of copper and copper alloy products:
The industry should form a unified test and evaluation method to increase the reliability and comparability of test results:
Due to the scope of the standard and the technical independence of the analytical methods, GB/T 5121 is planned to consist of 29 parts:
--- Part 1: Determination of copper content;
--- Part 2: Determination of phosphorus content;
--- Part 3: Determination of lead content;
--- Part 4: Determination of carbon and 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, nitrogen and hydrogen 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: Determination of selenium and tellurium content;
--- Part 25: Determination of boron content;
--- Part 26: Determination of mercury content;
--- Part 27: Inductively coupled plasma atomic emission spectrometry;
--- Part 28: Determination of chromium, iron, manganese, cobalt, nickel, zinc, arsenic, selenium, silver, cadmium, tin, antimony, tellurium, lead and bismuth content by inductively coupled plasma
Daughter mass spectrometry;
--- Part 29: Determination of aluminum oxide content:
This document fully considers the actual needs of the current production, research and development, application and testing of copper and copper alloys, and adds the determination of nitrogen and hydrogen elements:
The method and the scope of oxygen determination have been expanded, which further improves the applicability of the standard and describes the test methods for oxygen, nitrogen and hydrogen in copper and copper alloys:
This step has improved the reliability and comparability of the test data of various institutions, and has played a significant role in improving the quality of copper and copper alloy products and helping my country's copper and copper alloy
It is of great significance to the development of the gold industry:
Chemical analysis methods for copper and copper alloys
Part 8: Determination of oxygen, nitrogen and hydrogen content
1 Scope
This document describes the determination of oxygen, nitrogen and hydrogen content in copper and copper alloys, including inert gas fusion-infrared absorption/thermal conductivity method:
Determination of oxygen, nitrogen content and hydrogen content by inert gas fusion-infrared absorption method or thermal conductivity method:
This document is applicable to the determination of oxygen, nitrogen and hydrogen content in copper and copper alloys: Method 1 is applicable to the determination of oxygen and nitrogen content in copper and copper alloys:
Method 2 is suitable for the determination of hydrogen content in copper and copper alloys: The determination range is shown in Table 1:
Table 1 Measurement range
element
Quality score
Oxygen (O) 0:00030~0:600
Nitrogen (N) 0:00010~0:050
Hydrogen (H) 0:000050~0:0010
This document is not applicable to the determination of oxygen, nitrogen and hydrogen content in copper and copper alloys with zinc content greater than 1:0%:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 6682 Specifications and test methods for water used in analytical laboratories
YS/T 668 Sampling methods for physical and chemical testing of copper and copper alloys
3 Terms and definitions
There are no terms or definitions that require definition in this document:
4 Method 1 Determination of oxygen and nitrogen content by inert gas fusion-infrared absorption method/thermal conductivity method
4:1 Principle
Place the prepared sample in a graphite crucible (use a nickel basket when the sample contains refractory components), heat and melt in an inert atmosphere, and release
Oxygen and nitrogen are released: Oxygen is precipitated as carbon monoxide and passes through the rare earth copper oxide furnace along with inert gas, so that most of the carbon monoxide is oxidized into dioxin:
Carbon dioxide, carbon monoxide and the remaining carbon monoxide are introduced into the infrared detector for measurement: The computer system calculates the carbon dioxide according to the sample mass and signal strength:
Calculate oxygen content:
After carbon monoxide, carbon dioxide and water in the gas path are absorbed and separated, nitrogen is introduced into the thermal conductivity detector by the inert carrier gas flow to output the signal:
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