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GB/T 19267.13-2025: Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry
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Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry
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GB/T 19267.13-2025
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Basic data | Standard ID | GB/T 19267.13-2025 (GB/T19267.13-2025) | | Description (Translated English) | Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 07.140 | | Word Count Estimation | 14,164 | | Date of Issue | 2025-02-28 | | Date of Implementation | 2025-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 19267.13-2025: Forensic sciences - Physical and chemical examination of trace evidence - Part 13: Wavelength dispersive X-ray fluorescence spectrometry
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GB/T 19267.13-2025 English version. Forensic sciences - Physical and chemical examination of trace evidence - Part 13.Wavelength dispersive X-ray fluorescence spectrometry
ICS 07.140
CCSA92
National Standard of the People's Republic of China
Forensic science. physical and chemical examination of trace evidence
Part 13.Wavelength dispersive X-ray fluorescence spectrometry
Part 13.WavelengthdispersiveX-rayfluorescencespectrometry
Released on 2025-02-28
2025-06-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
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 for standardization documents"
Drafting.
This document is part 13 of GB/T 19267 "Physical and Chemical Examination of Trace Evidence in Forensic Science". GB/T 19267 has been published.
The following parts.
--- Part 1.Infrared absorption spectroscopy;
--- Part 2.UV-Vis absorption spectroscopy;
--- Part 3.Molecular fluorescence spectroscopy;
--- Part 4.Atomic emission spectrometry;
--- Part 5.Atomic absorption spectrometry;
--- Part 6.Scanning electron microscopy/X-ray spectroscopy;
--- Part 7.Gas chromatography-mass spectrometry;
--- Part 8.Microspectrophotometry;
--- Part 9.Thin layer chromatography;
--- Part 10.Gas chromatography;
--- Part 11.High performance liquid chromatography;
--- Part 12.Thermal analysis;
--- Part 13.Wavelength dispersive X-ray fluorescence spectrometry.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is under the jurisdiction of the National Technical Committee on Criminal Technology Standardization (SAC/TC179).
This document was drafted by. Identification Center of the Ministry of Public Security, Shanghai Public Security Bureau, and Beijing Public Security Bureau.
The main drafters of this document are. Guo Hongling, Zhu Jun, Li Yajun, Wang Ping, Lü Xiaobao, Li Xin, and Quan Yangke.
Introduction
GB/T 19267 is a professional basic standard for forensic trace evidence examination, which aims to improve the quality of identification and unify the identification opinions.
The results of this study can increase the credibility of expert opinions and provide norms and guidance for forensic trace evidence testing.
GB/T 19267 is planned to consist of 13 parts.
--- Part 1.Infrared absorption spectroscopy. The purpose is to describe the basic content of the application of infrared absorption spectroscopy in the field of forensic science.
--- Part 2.Ultraviolet-visible absorption spectroscopy. The purpose is to describe the application of ultraviolet-visible absorption spectroscopy in the field of forensic science.
The basic content.
--- Part 3.Molecular fluorescence spectroscopy. The purpose is to describe the basic content of the application of molecular fluorescence spectroscopy in the field of forensic science.
--- Part 4.Atomic emission spectrometry. The purpose is to describe the basic content of the application of atomic emission spectrometry in the field of forensic science.
--- Part 5.Atomic absorption spectrometry. The purpose is to describe the basic content of the application of atomic absorption spectrometry in the field of forensic science.
--- Part 6.Scanning electron microscopy/X-ray spectroscopy. The purpose is to describe the use of scanning electron microscopy/X-ray spectroscopy in
Basic content for applications in the field of forensic science.
--- Part 7.Gas chromatography-mass spectrometry. The purpose is to describe the basic application of gas chromatography-mass spectrometry in the field of forensic science.
content.
--- Part 8.Microspectrophotometry. The purpose is to describe the basic content of the application of microspectrophotometry in the field of forensic science.
--- Part 9.Thin layer chromatography. The purpose is to describe the basic content of thin layer chromatography in the field of forensic science.
--- Part 10.Gas chromatography. The purpose is to describe the basic content of the application of gas chromatography in the field of forensic science.
--- Part 11.High performance liquid chromatography. The purpose is to describe the basic principles of high performance liquid chromatography in the field of forensic science.
content.
--- Part 12.Thermal analysis. The purpose is to describe the basic content of thermal analysis in the field of forensic science.
--- Part 13.Wavelength dispersive X-ray fluorescence spectrometry. The purpose is to describe the forensic application of wavelength dispersive X-ray fluorescence spectrometry.
Basic content for application in academic fields.
Wavelength dispersive X-ray fluorescence spectrometry is one of the most commonly used elemental analysis methods in the field of trace evidence in forensic science.
The method is non-destructive analysis and has the characteristics of fast analysis speed and high analysis precision. It has been widely used in the field of forensic science.
Standardize and normalize forensic trace evidence testing to improve the quality of identification, unify identification opinions, and increase the credibility of identification opinions
It is of great significance.
Forensic science. physical and chemical examination of trace evidence
Part 13.Wavelength dispersive X-ray fluorescence spectrometry
1 Scope
This document describes the wavelength dispersive X-ray fluorescence spectroscopy method for forensic trace evidence testing, including principles, instrumentation, sample preparation, and
Product preparation, sample inspection and analysis, inspection result analysis, result expression and precautions.
This document applies to the physical and chemical examination of trace evidence in the field of forensic science.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 13966 Terminology of analytical instruments
GB/T 14666 Terminology of Analytical Chemistry
GA/T 242 Terminology for physical and chemical examination of trace evidence in forensic science
3 Terms and definitions
The terms and definitions defined in GB/T 13966, GB/T 14666, GA/T 242 and the following apply to this document.
3.1
wavelength dispersive X-ray fluorescence spectroscopy
The wavelength dispersive X-ray fluorescence spectrometer is used to measure the characteristic X-ray wavelength and intensity of the elements for qualitative and quantitative analysis of the elements.
method.
3.2
particle size effect
The phenomenon that the intensity of fluorescent X-rays of the measured elements in the sample is affected by the particle size of the sample.
3.3
Segregation
Differences in the distribution of elements in a sample.
3.4
Matrix effect
The phenomenon that components other than the analyzed element in the sample affect the determination of the analyzed element.
3.5
Film
Simple thin specimens and thin layers of material on some substrate.
3.6
Film analysis
Measurement of film thickness and determination of film composition.
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