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GB/T 6730.86-2023: Iron ores - Determination of radionuclides - Inductively coupled plasma-mass spectrometric method
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Iron ores - Determination of radionuclides - Inductively coupled plasma-mass spectrometric method
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GB/T 6730.86-2023
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Basic data | Standard ID | GB/T 6730.86-2023 (GB/T6730.86-2023) | | Description (Translated English) | Iron ores - Determination of radionuclides - Inductively coupled plasma-mass spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D31 | | Classification of International Standard | 73.060.10 | | Word Count Estimation | 18,169 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 6730.86-2023: Iron ores - Determination of radionuclides - Inductively coupled plasma-mass spectrometric method
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ICS 73.060.10
CCSD31
National Standards of People's Republic of China
Determination of radionuclides in iron ore
Inductively coupled plasma mass spectrometry
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document follows the rules of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is Part 86 of GB/T 6730 "Iron Ore". See Appendix A for the published parts of GB/T 6730.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by the China Iron and Steel Industry Association.
This document is under the jurisdiction of the National Iron Ore and Direct Reduced Iron Standardization Technical Committee (SAC/TC317).
This document was drafted by. Ningbo Institute of Inspection and Quarantine Science and Technology, Rizhao Institute of Quality Inspection and Testing, China Radiation Protection Research
Institute, Zhejiang Ningbo Ecological Environment Monitoring Center, Xiamen Weihaotai Technology Co., Ltd., China Institute of Atomic Energy, Ningbo Zhongsheng Product Inspection
Testing Co., Ltd., Ningbo Metrology and Testing Institute, Panxi Vanadium and Titanium Inspection and Testing Institute, and Metallurgical Industry Information Standards Institute.
The main drafters of this document. Yang Hui, Fu Ranran, Wang Yan, Yu Dong, Liu Dong, Meng Leilei, Ding Kaige, Yang Jiawang, Luo Maoyi, Wu Yang, Yang Yonggang,
Shi Jianghuan, Shen Bijun, Zhang Zhihuan, Zhao Lifei, Wang Ruyi, Zhu Rong, Chen Hehai, Liao Haiping, Sun Hao, Li Zijing.
Introduction
Iron ore is the main raw material in the steel industry. Among the standard systems in the steel field, the standard system for determination of chemical composition of iron ore is one of the standard systems.
It is a very important part and plays an important role in ensuring the quality of iron ore products. This series of method standards serve the production of iron ore
production, trade and application, providing technical support for the high-quality development of my country's steel industry.
GB/T 6730 includes a series of standards for the determination of chemical composition of iron ore, which respectively stipulates the moisture, total iron, and metal content in iron ore products.
Iron, ferrous iron, silicon, aluminum, calcium, magnesium, sulfur, phosphorus, manganese, titanium, total rare earths, barium, chromium, vanadium, tin, copper, cobalt, nickel, zinc, niobium, bismuth, potassium, sodium, carbon, lead, arsenic,
Determination of chemical components such as cadmium, mercury, fluorine, chlorine, loss on ignition and combined water.
In 1986, GB/T 6730 released 51 national standards for determination methods of chemical composition of iron ore for the first time. With the development of analytical technology in the field of iron ore
development and actual production needs. After years of continuous revision work, a relatively complete standard system has been formed. GB/T 6730 Group
Please see Appendix A for details of the document.
Determination of radionuclides in iron ore
Inductively coupled plasma mass spectrometry
Warning---Personnel using this document should have practical experience in regular laboratory work. This document does not address all possible security issues
question. Users are responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national regulations.
1 Scope
This document describes the use of inductively coupled plasma mass spectrometry (ICP-MS) for the determination of the radionuclides uranium-238 and thorium-232 in iron ore.
method.
This document is applicable to the determination of radionuclides uranium-238 and thorium-232 in iron ore, iron concentrate, sinter and pellets. The measurement range is as follows
As shown in Table 1.
Table 1 Measuring range
nuclide
activity concentration
Bq/g
Uranium-238 0.05~4.89
Thorium-232 0.07~28.3
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents
GB/T 4960.5 Nuclear Science and Technology Terminology Radiation Protection and Radiation Source Safety
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 6730.1 Preparation of pre-dried samples for iron ore analysis
GB/T 8170 Numerical rounding rules and representation and determination of limit values
GB/T 10322.1 Iron ore sampling and sample preparation methods
GB/T 12806 Laboratory glassware single-marked volumetric flasks
3 Terms and definitions
The terms and definitions defined in GB/T 4960.5 and the following apply to this document.
3.1
nuclide
A type of atom that has the same number of protons and neutrons and is in the same nuclear energy state.
3.2
radioactivityradioactivity
The nuclide spontaneously emits particles or gamma rays, or emits X-rays after orbital electron capture, or undergoes spontaneous fission.
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