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GB/T 5195.12-2025: Methods for chemical analysis of fluorspar - Part 12: Determination of arsenic content
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GB/T 5195.12: Evolution and historical versions
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Methods for chemical analysis of fluorspar - Part 12: Determination of arsenic content
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| GB/T 5195.12-2016 | English | 170 |
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Fluorite - Determination of arsenic content - Atomic fluorescence spectrometry
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Basic data | Standard ID | GB/T 5195.12-2025 (GB/T5195.12-2025) | | Description (Translated English) | Methods for chemical analysis of fluorspar - Part 12: Determination of arsenic content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 5195.12 | | Word Count Estimation | 14,199 | | Date of Issue | 2025-08-29 | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 5195.12-2016, GB/T 5195.19-2018 | | Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China | GB/T 5195.12-2025: Methods for chemical analysis of fluorspar - Part 12: Determination of arsenic content
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT5195.12-2025
ICS 73.080
CCSD52
National Standards of the People's Republic of China
Replaces GB/T 5195.12-2016 and GB/T 5195.19-2018
Chemical analysis methods for fluorite
Part 12.Determination of Arsenic Content
Published on 2025-08-29
Implemented on 2026-03-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
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 12 of GB/T 5195.GB/T 5195 has the following parts published.
---GB/T 5195.1 Determination of calcium fluoride content in fluorite by EDTA titration and distillation-potentiometric titration;
---GB/T 5195.2 Determination of fluorite carbonate content;
---GB/T 5195.3 Determination of mass loss of fluorite at 105℃ by gravimetric method;
---GB/T 5195.4 Chemical Analysis Methods for Fluorite - Part 4.Determination of Total Sulfur and Sulfide Content;
---GB/T 5195.6 Determination of phosphorus content in fluorite using spectrophotometry;
---GB/T 5195.7 Determination of Zinc Content in Fluorite by Atomic Absorption Spectrometry;
---GB/T 5195.8 Determination of silica content in fluorite;
---GB/T 5195.9 Determination of Loss on Ignition of Fluorite by Gravimetric Method;
---GB/T 5195.10 Determination of iron content in fluorite by o-phenanthroline spectrophotometry;
---GB/T 5195.11 Determination of manganese content in fluorite using periodate spectrophotometry;
---GB/T 5195.12 Chemical Analysis Methods for Fluorite - Part 12.Determination of Arsenic Content;
---GB/T 5195.13 Determination of aluminum content in fluorite by EDTA titration;
---GB/T 5195.14 Determination of magnesium content in fluorite by flame atomic absorption spectrometry;
---GB/T 5195.15 Determination of Calcium, Aluminum, Silicon, Phosphorus, Sulfur, Potassium, Iron, Barium and Lead Content in Fluorite - Wavelength Dispersive X-ray Fluorescence
Spectroscopy;
---GB/T 5195.16 Determination of silicon, aluminum, iron, potassium, magnesium and titanium content in fluorite - Inductively coupled plasma atomic emission spectrometry
Spectroscopy;
---GB/T 5195.17 Determination of fluorite flotation reagent content by gravimetric method;
---GB/T 5195.18 Determination of barium sulfate content in fluorite by gravimetric method.
This document supersedes GB/T 5195.12-2016 "Determination of Arsenic Content in Fluorite by Atomic Fluorescence Spectrometry" and GB/T 5195.19-
The.2018 standard, "Determination of Arsenic Content in Fluorite by Silver Spectrophotometric Method with Diethyldithiocarbamate," differs from GB/T 5195.12-2016 except for structural...
Aside from adjustments and editorial changes, the main technical changes are as follows.
a) The scope has been changed (see Chapter 1, Chapter 1 of the.2016 edition);
b) Added terms and definitions (see Chapter 3);
c) The preparation method for the atomic fluorescence spectrometry calibration curve has been modified (see 4.5.3.3, 7.3.3 in the.2016 version);
d) The calibration curves and calculation formulas for atomic fluorescence spectrometry have been modified (see 4.6, Chapter 8 of the.2016 edition);
e) The flowchart for accepting sample analysis results has been revised (see Appendix A, Appendix A of the.2016 edition).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Iron and Steel Association.
This document is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
This document was drafted by. Shanghai Customs Industrial Products and Raw Materials Testing Technology Center, Metallurgical Industry Information and Standardization Research Institute, and China University of Geosciences.
Learning (Wuhan), China Nonmetallic Minerals Industry Association.
The main drafters of this document are. Liu Shu, Zhu Zhixiu, Min Hong, Wang Xiaoyuan, Xu Qianru, Xu Jie, Yan Detian, Liu Yanting, Yan Chenglin, and Yuan Zhaohui.
Cheng Zhaoyang.
The document replaced by this document has been released in the following versions.
---GB/T 5195.12, first published in.2016;
---GB/T 5195.19, first published in.2018.
introduction
To facilitate the detection of elements in fluorite, GB/T 5195 "Methods for Chemical Analysis of Fluorite" is proposed to be classified according to the elements determined and the methods used, into categories based on.
Part 2.
---Part 1.Determination of Calcium Fluoride Content by EDTA Titration and Distillation-Voltage Titration;
---Part 2.Determination of carbonate content;
---Part 3.Determination of mass loss at 105℃ by gravimetric method;
---Part 4.Determination of total sulfur and sulfide content;
---Part 6.Determination of Phosphorus Content by Spectrophotometry;
---Part 7.Determination of Zinc Content by Atomic Absorption Spectrometry;
---Part 8.Determination of silica content;
---Part 9.Determination of Loss on Ignition by Gravimetric Method;
---Part 10.Determination of Iron Content by o-phenanthroline Spectrophotometry;
---Part 11.Determination of Manganese Content by Periodate Spectrophotometry and Flame Atomic Absorption Spectrometry;
---Part 12.Determination of Arsenic Content;
---Part 13.Determination of Aluminum Content by EDTA Titration;
---Part 14.Determination of Magnesium Content by Flame Atomic Absorption Spectrometry;
---Part 15.Determination of the content of calcium, aluminum, silicon, phosphorus, sulfur, potassium, iron, barium, and lead by wavelength dispersive X-ray fluorescence spectrometry;
---Part 16.Determination of Silicon, Aluminum, Iron, Potassium, Magnesium and Titanium Content by Inductively Coupled Plasma Atomic Emission Spectrometry;
---Part 17.Determination of flotation reagent content by gravimetric method;
---Part 18.Determination of Barium Sulfate Content by Gravimetric Method
Chemical analysis methods for fluorite
Part 12.Determination of Arsenic Content
Warning---Personnel using this document should have formal laboratory work experience. This document does not address all possible safety issues.
Users are responsible for taking appropriate safety and health measures and ensuring compliance with relevant national regulations.
1.Scope
This document describes methods for determining the arsenic content in fluorite, including atomic fluorescence spectrometry (Method 1) and diethyldithiocarbamate.
Silver spectrophotometry (Method 2).
This document applies to the determination of arsenic content in fluorite. Atomic fluorescence spectrometry determination range (mass fraction). 0.000010%~
0.0100%; Determination range (mass fraction) of diethyldithiocarbamate by silver spectrophotometry. 0.00020%~0.0500%.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 6379.1 Accuracy (correctness and precision) of measurement methods and results - Part 1.General principles and definitions
GB/T 6379.2 Accuracy (correctness and precision) of measurement methods and results - Part 2.Determining the repeatability of standard measurement methods
Basic methods of sex and representation
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 8170 Rules for rounding off numerical values and the representation and determination of limiting values
GB/T 12806 Laboratory Glassware - Single-mark volumetric flasks
GB/T 12807 Graduated Pipettes for Laboratory Glassware
GB/T 12808 Laboratory Glassware - Single-mark Pipettes
GB/T 21191 Atomic Fluorescence Spectrometer
GB/T 22564 Fluorite Sampling and Sample Preparation
3.Terms and Definitions
This document does not contain any terms or definitions that need to be defined.
4.Method 1.Atomic Fluorescence Spectroscopy
4.1 Principle
The sample was dissolved in nitric acid and perchloric acid. In a dilute hydrochloric acid medium, a thiourea-ascorbic acid mixed solution was added to reduce arsenic(V) to arsenic(III).
In the hydride generator, arsenic is reduced to hydride by potassium borohydride, and the hydride is introduced into the quartz furnace atomizer by argon gas. The hydride is then analyzed by atomic fluorescence spectrometry.
Measure the fluorescence intensity of arsenic. Calculate the arsenic content using the standard curve method.
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