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GB/T 7731.17-2023: Ferrotungsten - Determination of cobalt, nickel and aluminum contents - Inductively coupled plasma atomic emission spectrometric method
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Ferrotungsten - Determination of cobalt, nickel and aluminum contents - Inductively coupled plasma atomic emission spectrometric method
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GB/T 7731.17-2023
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Basic data | Standard ID | GB/T 7731.17-2023 (GB/T7731.17-2023) | | Description (Translated English) | Ferrotungsten - Determination of cobalt, nickel and aluminum contents - Inductively coupled plasma atomic emission spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 12,130 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 7731.17-2023: Ferrotungsten - Determination of cobalt, nickel and aluminum contents - Inductively coupled plasma atomic emission spectrometric method
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ICS 77:100
CCSH11
National Standards of People's Republic of China
Determination of tungsten ferrocobalt, nickel and aluminum content
Inductively coupled plasma atomic emission spectrometry
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document is Part 17 of GB/T 7731: GB/T 7731 has released the following parts:
---Determination of ferrotungsten tungsten content by cinchonine gravimetric method and ammonium nitrate gravimetric method;
---Determination of tungsten ferromanganese content by periodate spectrophotometry and flame atomic absorption spectrometry;
---Determination of tungsten iron and copper content by dicyclohexanone oxalyl dihydrazone photometry and flame atomic absorption spectrometry;
---Determination of tungsten iron phosphorus content by phosphomolybdenum blue spectrophotometry;
---Determination of ferrotungsten silicon content by silicon-molybdenum blue spectrophotometry;
---Determination of tungsten iron and arsenic content by molybdenum blue photometry and inductively coupled plasma atomic emission spectrometry;
---Determination of tungsten-iron-tin content by phenylfluorone photometry and inductively coupled plasma atomic emission spectrometry;
---Determination of iron tungsten and antimony content by Rhodamine B photometry and inductively coupled plasma atomic emission spectrometry;
---Determination of tungsten iron and bismuth content by bismuth iodide photometry and inductively coupled plasma atomic emission spectrometry;
---Determination of tungsten ferrocarbon content by infrared absorption method;
---Determination of tungsten iron sulfur content by infrared absorption method and combustion neutralization titration method;
---Determination of ferrotungsten lead content by polarography and inductively coupled plasma atomic emission spectrometry;
---Determination of tungsten ferrocobalt, nickel and aluminum content by inductively coupled plasma atomic emission spectrometry:
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 Pig Iron and Ferroalloy Standardization Technical Committee (SAC/TC318):
This document was drafted by: Jiangxi Provincial Tungsten and Rare Earth Product Quality Supervision and Inspection Center (Jiangxi Provincial Tungsten and Rare Earth Research Institute), Ganzhou Jiangtungsten Tungsten Co:, Ltd:
Gold Co:, Ltd:, Metallurgical Industry Information Standards Research Institute, Qingdao Boxinda Technology Co:, Ltd:, Ganzhou Huaxing Tungsten Products Co:, Ltd:, Chongyi Zhangyuan
Tungsten Industry Co:, Ltd:, Jiangxi University of Science and Technology:
The main drafters of this document: Xu Na, Li Jianguo, Gu Juan, Xie Min, Zhong Yinglan, Li Fuping, Guo Xiuting, Zhang Chen, Wei Ling, Lu Ping, Zhong Zhiqiang,
He Hongmei, Shi Gaoxing, Yang Kai, Lu Kangqiang, Liu Yanting:
Introduction
Since there are many detection elements involved in the ferrotungsten detection process, the applicable scope and applicable methods of the elements are different: To ensure tungsten
The iron detection standards are convenient and accurate: For the analysis methods of different elements of ferrotungsten, a national standard system has been established to support ferrotungsten detection:
GB/T 7731 Ferrotungsten series analysis methods are the basic standards for ferrotungsten testing in my country and consist of 13 parts:
---Determination of ferrotungsten tungsten content by cinchonine gravimetric method and ammonium nitrate gravimetric method: The purpose is to measure the tungsten content in ferrotungsten, using
Cinchonine gravimetric method and ammonium nitrate gravimetric method:
---Determination of tungsten ferromanganese content by periodate spectrophotometry and flame atomic absorption spectrometry: The purpose is to measure the ferrotungsten
Manganese content, using periodate spectrophotometry and flame atomic absorption spectrometry:
---Determination of tungsten iron and copper content by dicyclohexanone oxalyl dihydrazone photometry and flame atomic absorption spectrometry: The purpose is to measure ferrotungsten
The copper content in the sample was measured using dicyclohexanone oxalyl dihydrazone photometry and flame atomic absorption spectrometry:
---Determination of tungsten iron phosphorus content by phosphomolybdenum blue spectrophotometry: The purpose is to measure the phosphorus content in ferrotungsten, using phosphorus molybdenum blue spectroscopy:
Photometry:
---Determination of tungsten ferrosilicon content by silicon-molybdenum blue spectrophotometry: The purpose is to measure the silicon content in ferrotungsten, using silicon-molybdenum blue spectroscopy:
Photometry:
---Determination of tungsten iron and arsenic content by molybdenum blue photometry and inductively coupled plasma atomic emission spectrometry: The purpose is to measure ferrotungsten
The arsenic content in the samples was measured using molybdenum blue photometry and inductively coupled plasma atomic emission spectrometry:
---Determination of tungsten-iron-tin content by phenylfluorone photometry and inductively coupled plasma atomic emission spectrometry: The purpose is to test
To measure the tin content in ferrotungsten, phenylfluorone photometry and inductively coupled plasma atomic emission spectrometry were used:
---Determination of tungsten iron and antimony content by Rhodamine B photometry and inductively coupled plasma atomic emission spectrometry: The purpose is to test
To measure the antimony content in ferrotungsten, rhodamine B photometry and inductively coupled plasma atomic emission spectrometry were used:
--- Determination of tungsten iron and bismuth content by bismuth iodide photometry and inductively coupled plasma atomic emission spectrometry: The purpose is to measure tungsten
The bismuth content in iron was measured using bismuth iodide photometry and inductively coupled plasma atomic emission spectrometry:
---Determination of tungsten ferrocarbon content by infrared absorption method: The purpose is to measure the carbon content in ferrotungsten, using infrared absorption method:
---Determination of tungsten iron sulfur content by infrared absorption method and combustion neutralization titration method: The purpose is to measure the sulfur content in ferrotungsten:
Use infrared absorption method and combustion neutralization titration method:
---Determination of ferrotungsten lead content by polarography and inductively coupled plasma atomic emission spectrometry: The purpose is to measure the ferrotungsten
Lead content was determined by polarography and inductively coupled plasma atomic emission spectrometry:
---Determination of tungsten ferrocobalt, nickel and aluminum content by inductively coupled plasma atomic emission spectrometry: The purpose is to measure the ferrotungsten
Cobalt, nickel, and aluminum contents were measured using inductively coupled plasma atomic emission spectrometry:
Determination of tungsten ferrocobalt, nickel and aluminum content
Inductively coupled plasma atomic emission spectrometry
Warning---Personnel using this document should have regular laboratory work experience: 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 laws and regulations:
1 Scope
This document specifies the measurement of cobalt, nickel, and aluminum content in ferrotungsten using inductively coupled plasma atomic emission spectrometry:
This document is applicable to the determination of cobalt, nickel and aluminum content in ferrotungsten: Determination range (mass fraction): 0:010%~5:00%:
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 4010 Collection and preparation of samples for chemical analysis of iron alloys
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8170 Numerical rounding rules and expression and determination of limit values
3 Terms and definitions
There are no terms or definitions to be defined in this document:
4 Principles
The sample is decomposed with oxalic acid-hydrogen peroxide, mixed acid is added to form tungsten acid precipitate, the tungsten is separated by filtration, and the solution is introduced into inductively coupled plasma:
Measure the spectral intensity of cobalt, nickel, and aluminum in the atomic emission spectrometer, and find out the content of cobalt, nickel, and aluminum on the calibration curve:
5 Reagents and materials
Unless otherwise stated, only reagents confirmed to be of analytical grade and distilled water of grade 2 or above complying with GB/T 6682 or above are used in the analysis:
Its purity is comparable to water:
5:1 Oxalic acid, excellent grade pure:
5:2 Hydrogen peroxide, density ρ=1:10g/mL, excellent grade pure:
5:3 Hydrochloric acid, density ρ=1:19g/mL:
5:4 Sulfuric acid, density ρ=1:84g/mL:
5:5 Nitric acid, density ρ=1:42g/mL:
5:6 Mixed acid, sulfuric acid: hydrochloric acid: water = 1:4:2 (when preparing, add sulfuric acid to water slowly, then add hydrochloric acid):
5:7 Standard storage solutions for cobalt, nickel and aluminum:
a) Cobalt standard storage solution, 1:0 mg/mL:
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