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GB/T 15246-2022: Microbeam analysis - Quantitative analysis of sulfide minerals by electron probe microanalysis
Status: Valid GB/T 15246: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 15246-2022 | English | 269 |
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Microbeam analysis - Quantitative analysis of sulfide minerals by electron probe microanalysis
| Valid |
GB/T 15246-2022
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| GB/T 15246-2002 | English | 319 |
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Quantitative analysis of sulfide minerals by electron probe microanalysis
| Obsolete |
GB/T 15246-2002
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| GB/T 15246-1994 | English | 199 |
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Standard method for electron probe microanalysis of sulfide minerals
| Obsolete |
GB/T 15246-1994
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PDF similar to GB/T 15246-2022
Basic data | Standard ID | GB/T 15246-2022 (GB/T15246-2022) | | Description (Translated English) | Microbeam analysis - Quantitative analysis of sulfide minerals by electron probe microanalysis | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N33 | | Classification of International Standard | 19.020 | | Word Count Estimation | 14,139 | | Date of Issue | 2022-10-14 | | Date of Implementation | 2023-02-01 | | Older Standard (superseded by this standard) | GB/T 15246-2002 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 15246-2022: Microbeam analysis - Quantitative analysis of sulfide minerals by electron probe microanalysis
---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.
Microbeam analysis -- Quantitative analysis of sulfide minerals by electron probe microanalysis
ICS 19.020
CCSN33
National Standards of People's Republic of China
Replacing GB/T 15246-2002
Electron Probe for Microbeam Analysis of Sulfide Minerals
Quantitative Analysis Methods
Published on 2022-10-12
2023-02-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Instruments 2
5 Specimen Preparation 2
6 Standard 2
7 Selection of analytical test conditions 3
8 Line overlap correction 4
9 Analysis Step 4
10 Result processing 5
11 Test report 5
Appendix A (Informative) Example 6 of Uncertainty Evaluation of Electron Probe Quantitative Analysis of Sulfide Minerals
Reference 9
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 replaces GB/T 15246-2002 "Method of Electron Probe Quantitative Analysis of Sulfide Minerals". This document is related to GB/T 15246-
Compared with.2002, except for structural adjustment and editorial changes, the main technical changes are as follows.
a) The performance requirements for electron probe instruments and equipment for scanning electron microscopes are added (see 4.1);
b) The sample preparation method is added (see 5.2);
c) Changed the description of the analytical selection standard (see 6.1, 6.1 of the.2002 edition);
d) Deleted the working time requirement for the beam to reach a steady state (see 7.3.1 of the.2002 edition);
e) The requirements for beam current stability have been added (see 7.3);
f) Changed the selection of the spectral crystal of sulfur element and the line system of tungsten element (see 7.4, 7.4 of the.2002 edition);
g) changed "background" to "background" (see 7.6, 7.6 of the.2002 edition);
h) Deleted the method of spectral line overlap correction in energy spectrum analysis (see 8.5 of the.2002 edition);
i) Changed the time requirement for checking instrument stability (see 9.1, 9.1 of the.2002 edition);
j) Added the requirement for rounding of values (see 10.3);
k) Added the influencing factors of uncertainty (see 10.5).
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 and managed by the National Microbeam Analysis Standardization Technical Committee (SAC/TC38).
This document is drafted by. Industrial Analysis and Testing Center of Guangdong Academy of Sciences, Institute of Geology and Geophysics, Chinese Academy of Sciences, Chinese Academy of Sciences
Institute of Chemistry.
The main drafters of this document. Wu Chaoqun, Liu Yingkun, Zhou Peng, Mao Qian, Chen Hanyue, Wang Yanhua, Liu Fen, Guan Jinqiong.
The previous versions of this document and its superseded documents are as follows.
--- This document was first published in.1994 and revised for the first time in.2002;
---This is the second revision.
Electron Probe for Microbeam Analysis of Sulfide Minerals
Quantitative Analysis Methods
1 Scope
This document specifies the equipment, sample preparation, standard sample, selection of analytical test conditions, spectrum for measuring the composition of sulfide minerals with electronic probes
Line overlap correction, analysis steps, result processing and inspection reports.
This document applies to sulfide minerals stable under electron beam bombardment, as well as arsenide, antimonide, bismuth, telluride, selenide and other minerals
Electron probe quantitative analysis of compounds.
This document applies to quantitative analysis with electron probes and also for quantification with a scanning electron microscope equipped with a spectrometer
analyze.
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 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values
GB/T 15074 General Principles of Electron Probe Quantitative Analysis Methods
GB/T 17359 Microbeam Analysis Energy Spectrometry Quantitative Analysis
GB/T 17366 Preparation method of samples for electron probe analysis of mineral rocks
GB/T 20725 Spectroscopic Characteristic Point Analysis Guidelines for Electron Probe Microanalysis
GB/T 21636 Microbeam Analysis Electron Probe Microanalysis (EPMA) Terminology
3 Terms and Definitions
GB/T 21636 and the following terms and definitions apply to this document.
3.1
sulfide minerals
A metallic mineral whose anion group is composed of sulfur.
3.2
light sheet polishedsection
The rock or ore sample is cut into a certain size, and the surface to be observed is ground and polished.
3.3
light sheet polishedthinsection
A sample of rock or ore cut to a certain size, thinned to transmit light, and ground and polished on both sides.
3.4
sandpolishedsection
Embed the particle samples in epoxy or conductive resin or prepare flat, polished specimens on glass flakes.
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