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GB/T 6150.13-2022: Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and the silver diethyldithiocarbamate(DDTC-Ag)spectrophotometry
Status: Valid GB/T 6150.13: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 6150.13-2022 | English | 339 |
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Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and the silver diethyldithiocarbamate(DDTC-Ag)spectrophotometry
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GB/T 6150.13-2022
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| GB/T 6150.13-2008 | English | 359 |
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Methods for chemical analysis of tungsten concentrates -- Determination of arsenic content -- Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate (DDTC-Ag) photometry
| Obsolete |
GB/T 6150.13-2008
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| GB/T 6150.13-1985 | English | 199 |
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Methods for chemical analysis of tungsten concentrates--The ammonium hydroxide-ammonium chloride supporting electrolyte polarographic method for the determination of zinc content
| Obsolete |
GB/T 6150.13-1985
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Basic data | Standard ID | GB/T 6150.13-2022 (GB/T6150.13-2022) | | Description (Translated English) | Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and the silver diethyldithiocarbamate(DDTC-Ag)spectrophotometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H14 | | Classification of International Standard | 77.120.99 | | Word Count Estimation | 18,142 | | Date of Issue | 2022-10-14 | | Date of Implementation | 2023-02-01 | | Older Standard (superseded by this standard) | GB/T 6150.13-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 6150.13-2022: Methods for chemical analysis of tungsten concentrates - Part 13: Determination of arsenic content - Atomic fluorescence spectrometry and the silver diethyldithiocarbamate(DDTC-Ag)spectrophotometry
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ICS 77.120.99
CCSH14
National Standards of People's Republic of China
Replacing GB/T 6150.13-2008
Methods for chemical analysis of tungsten concentrates
Part 13.Determination of arsenic content
Atomic fluorescence spectrometry and DDTC-Ag spectrophotometry
2022-10-12 Released 2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
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 of Standardization Documents"
drafted.
This document is Part 13 of GB/T 6150 "Methods for Chemical Analysis of Tungsten Concentrates". GB/T 6150 has released the following parts.
--- Determination of the amount of tungsten trioxide ammonium tungstate burning gravimetric method;
--- Part 2.Determination of tin content by potassium iodate titration and inductively coupled plasma atomic emission spectrometry;
--- Determination of phosphorus content by phosphorous molybdenum yellow spectrophotometry;
--- Determination of sulfur content by high-frequency infrared absorption method;
--- Determination of calcium content by EDTA volumetric method and flame atomic absorption spectrometry;
--- Determination of wet water storage gravimetric method;
--- Determination of the amount of tantalum and niobium plasma emission spectrometry and spectrophotometry;
--- Determination of molybdenum content by thiocyanate spectrophotometry;
--- Determination of copper content by flame atomic absorption spectrometry;
--- Determination of lead content by flame atomic absorption spectrometry;
--- Determination of zinc content by flame atomic absorption spectrometry;
--- Determination of silica content by silicon molybdenum blue spectrophotometry and gravimetric method;
--- Part 13.Determination of arsenic content by atomic fluorescence spectrometry and DDTC-Ag spectrophotometry;
--- Determination of manganese content by ferrous ammonium sulfate volumetric method and flame atomic absorption spectrometry;
--- Determination of the amount of bismuth by flame atomic absorption spectrometry;
--- Determination of iron content by sulfosalicylic acid spectrophotometry;
--- Part 17.Determination of antimony content by atomic fluorescence spectrometry.
This document replaces GB/T 6150.13-2008 "Chemical Analysis of Tungsten Concentrates Determination of Arsenic Content by Hydride Atomic Absorption Spectrometry and
DDTC-Ag Spectrophotometry", compared with GB/T 6150.13-2008, except for structural adjustment and editorial changes, the main technical changes
as follows.
a) The detection method was changed from hydride atomic absorption spectrometry to atomic fluorescence spectrometry, and the measurement range was changed from 0.005%~
0.50% is changed to 0.0010%~0.20% (see Chapter 1 and Chapter 4, Chapter 1 of the.2008 edition);
b) Change the tolerance to reproducibility (see 4.7.3, 5.7.2, 8.2, 16.2 of the.2008 edition);
c) Added the chapter "Test Report" (see Chapter 6).
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Nonferrous Metals Industry Association.
This document is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243).
This document is drafted by. Ganzhou Nonferrous Metallurgy Research Institute Co., Ltd., Hunan Shizhuyuan Nonferrous Metals Co., Ltd. Chenzhou Tungsten Products Branch
Company, Jinduicheng Molybdenum Industry Co., Ltd., Hunan Shizhuyuan Nonferrous Metals Co., Ltd., Jiangxi Province Tungsten and Rare Earth Product Quality Supervision and Inspection
Inspection Center, Ganzhou Huaxing Tungsten Products Co., Ltd., National Standard (Beijing) Inspection and Certification Co., Ltd., Changsha Mining and Metallurgy Research Institute Co., Ltd.
The main drafters of this document. Lai Jian, Chen Tao, Zhang Wenxing, Li Ying, Hou Guiqiong, Su Xiong, Zhang Bilan, Liu Hong, Zhong Ying, Lu Ping, Tian Xin, Yang Binghong,
Wang Changji, Zhang Yuanxia, Guo Yu, Guo Hui.
The previous versions of this document and its superseded documents are as follows.
---First published in 1985 as GB 6150.15-1985;
---The first revision in.2008 was GB/T 6150.13-2008;
---This is the second revision.
Introduction
Tungsten concentrate is an important strategic resource, and tungsten and tungsten alloys are produced as important industrial raw materials.
It has the characteristics of heavy and high hardness, and is widely used in machining, metallurgy, mining, electronic communication, construction industry, weapon industry, aerospace and other fields.
GB/T 6150 aims to establish a set of complete, practical and suitable chemical compositions for the production and trade of tungsten concentrate products through experimental research.
methodological standards for sub-analysis. Due to the limitations of document length, usage requirements, scope of application, and technical independence between analytical methods, etc.
Therefore, GB/T 6150 is intended to consist of 20 parts.
--- Part 1.Determination of tungsten trioxide content by ammonium tungstate burning gravimetric method;
--- Part 2.Determination of tin content by potassium iodate titration and inductively coupled plasma atomic emission spectrometry;
--- Part 3.Determination of phosphorus content by phosphoro-molybdenum yellow spectrophotometry and inductively coupled plasma atomic emission spectrometry;
--- Part 4.Determination of sulfur content high frequency-infrared absorption method and combustion-iodometric method;
--- Part 5.Determination of calcium content by EDTA volumetric method and flame atomic absorption spectrometry;
--- Part 6.Determination of wet moisture content gravimetric method;
--- Part 7.Determination of the amount of tantalum and niobium plasma emission spectrometry and spectrophotometry;
--- Part 8.Determination of molybdenum content by thiocyanate spectrophotometry;
--- Part 9.Determination of copper content by flame atomic absorption spectrometry;
--- Part 10.Determination of lead content by hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry;
--- Part 11.Determination of zinc content by flame atomic absorption spectrometry;
--- Part 12.Determination of silicon dioxide content by silicon molybdenum blue spectrophotometry and gravimetric method;
--- Part 13.Determination of arsenic content by atomic fluorescence spectrometry and DDTC-Ag spectrophotometry;
--- Part 14.Determination of manganese content by volumetric ammonium ferrous sulfate and flame atomic absorption spectrometry;
--- Part 15.Determination of bismuth content by hydride generation atomic fluorescence spectrometry and flame atomic absorption spectrometry;
--- Part 16.Determination of iron content by sulfosalicylic acid spectrophotometry;
--- Part 17.Determination of antimony content by atomic fluorescence spectrometry;
--- Part 18.Determination of barium content by inductively coupled plasma atomic emission spectrometry;
--- Part 19.Determination of fluorine content by ion-selective electrode method;
--- Part 20.Determination of mercury content by spectrophotometry.
The series of standardization documents for chemical analysis methods of tungsten concentrates are mainly drafted according to the technical indicators in the product standards of tungsten concentrates. Since 1985
Come, has released two versions of GB/T 6150.GB/T 6150.13-2008 has been released and implemented for more than ten years. During this period, its applicable
The YS/T 231 product standard has been revised once in.2015, and various technical indicators have undergone new changes. The upstream and downstream customers of the tungsten industry
There are also new requirements for product testing, analysis and testing technology has also developed and progressed, and the country has further stringent environmental protection in various industries.
grid requirements. In view of this, it is indeed necessary to revise GB/T 6150.13-2008 to ensure that the standard adapts to industry changes and market demands.
This document further enhances the applicability of the standard, in improving the quality of tungsten concentrate products, promoting its production, trade and expanding application demand
The face is important.
Methods for chemical analysis of tungsten concentrates
Part 13.Determination of arsenic content
Atomic fluorescence spectrometry and DDTC-Ag spectrophotometry
1 Scope
This document specifies a method for the determination of arsenic content in tungsten concentrates. Including atomic fluorescence spectrometry (method 1) and DDTC-Ag spectrophotometry
method (method two).
This document applies to the determination of arsenic content in tungsten concentrates. Method one measuring range (mass fraction). 0.0010%~0.20%; method two measuring
Fixed range (mass fraction). 0.010%~0.50%. For the overlapping part of the measurement range, method 1 is used as the arbitration method.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 6682 Analysis Laboratory Water Specifications and Test Methods
GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values
3 Terms and Definitions
There are no terms and definitions that need to be defined in this document.
4 Method 1.Atomic Fluorescence Spectrometry
4.1 Principle
The sample is decomposed by sulfuric acid-ammonium sulfate, tungsten, iron, manganese, etc. are complexed with citric acid in an aqueous ammonia medium, and pentavalent arsenic is pre-reduced with thiourea-ascorbic acid.
to trivalent arsenic. In the hydride generator, arsenic was reduced to hydride by potassium borohydride, and its fluorescence intensity was measured by atomic fluorescence spectrometer.
4.2 Reagents or materials
Unless otherwise stated, only reagents confirmed to be analytically pure were used in the analysis.
4.2.1 Water, GB/T 6682, Class II.
4.2.2 Ammonium sulfate.
4.2.3 Sulfuric acid (ρ=1.84g/mL).
4.2.4 Hydrochloric acid (ρ=1.19g/mL), excellent grade pure.
4.2.5 Ammonia (ρ=0.88g/mL).
4.2.6 Citric acid solution (500g/L).
4.2.7 Sulfuric acid (1 1).
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