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GB/T 34003-2017: Detection method of impurity elements in boron nitride
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| GB/T 34003-2017 | English | 199 |
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Detection method of impurity elements in boron nitride
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GB/T 34003-2017
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Basic data | Standard ID | GB/T 34003-2017 (GB/T34003-2017) | | Description (Translated English) | Detection method of impurity elements in boron nitride | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q69 | | Classification of International Standard | 49.025.99 | | Word Count Estimation | 10,172 | | Date of Issue | 2017-07-12 | | Date of Implementation | 2018-02-01 | | 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 | GB/T 34003-2017: Detection method of impurity elements in boron nitride---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.
Detection method of impurity elements in boron nitride
ICS 49.025.99
Q69
National Standards of People's Republic of China
Determination of impurity elements in boron nitride
2017-07-12 released
2018-02-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the China Building Materials Federation.
This standard is the national non-metallic mineral products and products Standardization Technical Committee (SAC/TC406) centralized.
The drafting of this standard. Tsinghua University Analysis Center, Agilent Technologies Co., Ltd., Xianyang Non-metallic Mining Research Institute Co., Ltd., North
Beijing new Austrian ring standard physical and chemical analysis and testing center, the National Nonmetallic Products Quality Supervision and Inspection Center, Beijing Institute of Physical and Chemical Analysis and Testing Center.
The main drafters of this standard. Wang Hui, Wu Chunhua, Shang Xingchun, Xia Min, Tian Xiaoqing, Duan Yaping, Wu Yanwen, Ouyang Kun.
Determination of impurity elements in boron nitride
1 Scope
This standard specifies the inductively coupled plasma atomic emission spectrometry for the determination of impurity elements in boron nitride products. Lithium, sodium, calcium, magnesium, iron, zinc,
Copper, nickel, manganese, titanium, strontium, cadmium method principles, reagents and equipment, analysis steps and precision.
This standard applies to boron nitride powder, boron nitride wire, boron nitride particles of lithium, sodium, calcium, magnesium, iron, zinc, copper, nickel, manganese, titanium, strontium, cadmium
Determination of the substance.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Principle of the method
Boron nitride sample with nitric acid, hydrofluoric acid mixed in the microwave digestion conditions dissolved, with 1. 1 nitric acid acid 2 times to remove hydrofluoric acid, dilution set
The contents of lithium, sodium, calcium, magnesium, iron, zinc, copper, nickel, manganese, titanium, strontium and cadmium were measured by inductively coupled plasma atomic emission spectrometry
content.
The minimum detection concentration of this method is shown in Table 1.
Table 1
Element Li Na Ca Mg Fe Zn Cu Ni Mn Ti Sr Cd
Minimum detection concentration
mg/kg
0.5 2.0 0.5 0.5 0.8 0.3 0.5 0.8 0.1 0.5 0.2 0.5
4 reagents and equipment
4.1 basic reagents and pure water
4.1.1 hydrofluoric acid. purity not lower than the MOS level.
4.1.2 nitric acid. purity not lower than the MOS level.
4.1.3 Nitric acid. (1 1).
4.1.4 Hydrochloric acid. (1 1).
4.1.5 pure water. purity should not be less than GB/T 6682 provisions of the secondary water.
4.2 Standard stock solution and standard solution
4.2.1 lithium standard stock solution. weighed in (105 ± 5) ℃ drying of anhydrous lithium chloride 0.6108g, soluble in pure water, transferred to 1000mL capacity
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