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Forensic sciences - Examination methods for paint - Microspectrophotometry
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Basic data
| Standard ID | GA/T 2084-2023 (GA/T2084-2023) |
| Description (Translated English) | Forensic sciences - Examination methods for paint - Microspectrophotometry |
| Sector / Industry | Public Security (Police) Industry Standard (Recommended) |
| Classification of Chinese Standard | A92 |
| Classification of International Standard | 13.310 |
| Word Count Estimation | 8,845 |
| Date of Issue | 2023-03-01 |
| Date of Implementation | 2023-12-01 |
| Issuing agency(ies) | Ministry of Public Security |
GA/T 2084-2023: Forensic sciences - Examination methods for paint - Microspectrophotometry
---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.
ICS 13.310
CCSA92
Public safety industry standards of the People's Republic of China
Forensic Science Paint Inspection Microspectrophotometry
Published on 2023-03-01
Implemented on 2023-12-01
Released by the Ministry of Public Security of the People's Republic of China
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.
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is submitted by the Criminal Investigation Bureau of the Ministry of Public Security.
This document is under the jurisdiction of the Physical and Chemical Inspection Sub-Technical Committee of the National Technical Committee for Standardization of Criminal Technology (SAC/TC179/SC4).
This document was drafted by. Ministry of Public Security Identification Center, Beijing Municipal Public Security Bureau Criminal Investigation Corps Seventh Detachment, Henan Provincial Public Security Forensic Identification Center.
The main drafters of this document. Hu Can, Zhu Jun, Guo Hongling, Mei Hongcheng, Shi Huixia, Wei Chuice, Chen Jianxu, Li Haiyan, Zhou Zheng, and Lee Kuan Yew.
Forensic Science Paint Inspection Microspectrophotometry
1 Scope
This document specifies methods for the microspectrophotometric examination of paints in the field of forensic science.
This document is suitable for analysis and comparison of visible light spectrum characteristics of paints in the field of forensic science, and can also be used as a reference in other fields.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 13966 Analytical Instrument Terminology
GB/T 19267.8 Physical and chemical examination of criminal technical trace evidence Part 8.Microspectrophotometry
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 19267.8 and GA/T 242 apply to this document.
4 Principles
Paints show different colors due to different pigments added and different light absorption, transmission, reflection and fluorescence spectral characteristics. Microscope
The spectrophotometer can optically amplify the measurement area of tiny substances and measure the radiant energy of the light source in this area when illuminated by a specific light source.
The relationship between the amount of absorption, transmission, reflection, and fluorescence produced by the amount and the wavelength of the illuminating light source. Therefore, microspectrophotometry can be used for micro-volume
Analysis of absorption, reflection, transmission and fluorescence spectral characteristics of paint samples.
5 Reagents and materials
Reagents and materials include.
a) Absolute ethanol (C2H5OH, analytical grade);
b) Separation needle;
c) Diffuse reflection standard white board;
d) slide;
e) Double-sided tape;
f) Pointed tweezers;
g) Absorbent cotton balls;
h) scalpel;
i) Rolling roller.
...
