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GA/T 1995-2022: Forensic sciences - Examination methods for metal evidence - Wavelength dispersive X-ray fluorescence spectrometry
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GA/T 1995-2022 | English | 169 |
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Forensic sciences - Examination methods for metal evidence - Wavelength dispersive X-ray fluorescence spectrometry
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GA/T 1995-2022
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Basic data | Standard ID | GA/T 1995-2022 (GA/T1995-2022) | | Description (Translated English) | Forensic sciences - Examination methods for metal evidence - Wavelength dispersive X-ray fluorescence spectrometry | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 7,733 | | Date of Issue | 2022-06-15 | | Date of Implementation | 2022-10-01 | | Issuing agency(ies) | Ministry of Public Security | | Summary | This standard is applicable to the elemental composition analysis and comparative inspection of metal evidence in the field of forensic science, and can also be used for reference in other fields. | GA/T 1995-2022: Forensic sciences - Examination methods for metal evidence - Wavelength dispersive X-ray fluorescence spectrometry
---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.
ICS13:310
CCSA92
People's Republic of China Public Security Industry Standards
Forensic Science Metal Testing
Wavelength Dispersive X-ray Fluorescence Spectroscopy
Released on 2022-06-15
2022-10-01 Implementation
Released by the Ministry of Public Security of the People's Republic of China
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:
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document was proposed by the National Criminal Technology Standardization Technical Committee Physical and Chemical Inspection Sub-Technical Committee (SAC/TC179/SC4) and submitted
Focus on:
This document was drafted by: The Material Evidence Identification Center of the Ministry of Public Security, the Material Evidence Identification Center of the Guizhou Provincial Public Security Bureau, and the Criminal Investigation Detachment of the Dalian Public Security Bureau:
Science and Technology Division, Criminal Technology Institute of Guangzhou Public Security Bureau, Criminal Technology Center of Guangdong Provincial Public Security Bureau, People's Public Security University of China, Jinan Public Security Bureau
Criminal Police Detachment Criminal Division:
The main drafters of this document: Qiao Ting, Guo Hongling, Zhu Jun, Hu Can, Tian Renkui, Wang Bin, Lin Xianwen, Zhang Liang, Jiang Hong, Wu Jifeng, Lu Linchao:
Forensic Science Metal Testing
Wavelength Dispersive X-ray Fluorescence Spectroscopy
1 Scope
This document specifies wavelength dispersive X-ray fluorescence spectroscopic examination methods for metal evidence in the field of forensic science:
This document is applicable to the elemental composition analysis and comparative inspection of metal evidence in the field of forensic science, and can also be used as a reference in other fields:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 14666 Analytical Chemistry Terminology
GA/T 242 Physicochemical Examination Terminology for Trace Evidence in Forensic Science
3 Terms and Definitions
The terms and definitions defined in GB/T 14666 and GA/T 242 apply to this document:
4 principles
Common elements in metal evidence are magnesium (Mg), aluminum (Al), silicon (Si), titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron (Fe), cobalt
(Co), nickel (Ni), copper (Cu), zinc (Zn), silver (Ag), tin (Sn), antimony (Sb), platinum (Pt), gold (Au), lead (Pb), etc:, These elements are in the wave
It is within the inspection range of long dispersive X-ray fluorescence spectrometer: Using the characteristic fluorescent X-ray wavelength and response intensity of each element to detect metal evidence
Carry out qualitative and quantitative inspection of elements, and realize elemental composition analysis and comparative inspection of metal evidence:
5 Reagents and Materials
Reagents and materials include:
a) deionized water;
b) Ethanol (C2H6O, analytically pure);
c) sandpaper;
d) boric acid (H3BO3, analytically pure);
e) Ceramic scalpels and blades:
6 Instruments and equipment
Instruments and equipment include:
a) wavelength dispersive X-ray fluorescence spectrometer;
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