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Forensic sciences - Code of practice for mark examination of glass fractures
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Basic data
| Standard ID | GA/T 2087-2023 (GA/T2087-2023) |
| Description (Translated English) | Forensic sciences - Code of practice for mark examination of glass fractures |
| Sector / Industry | Public Security (Police) Industry Standard (Recommended) |
| Classification of Chinese Standard | A92 |
| Classification of International Standard | 13.310 |
| Word Count Estimation | 8,871 |
| Date of Issue | 2023-03-01 |
| Date of Implementation | 2023-12-01 |
| Issuing agency(ies) | Ministry of Public Security |
GA/T 2087-2023: Forensic sciences - Code of practice for mark examination of glass fractures
---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 Technical Regulations for Inspection of Broken Traces of Glass
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. Release of this document
The Agency 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 Trace Inspection Sub-Technical Committee of the National Technical Committee for Standardization of Criminal Technology (SAC/TC179/SC9).
This document was drafted by. Tianjin Municipal Public Security Bureau Physical Evidence Identification Center, Beijing Municipal Public Security Bureau Criminal Investigation Corps, Jilin Provincial Public Security Department Physical Evidence Identification Center
Center, Criminal Technical Corps of Heilongjiang Provincial Public Security Department.
The main drafters of this document. Tang Lihong, Zhang Xiuquan, Wu Hao, Peng Bo, Li Chengyun, Liu Yiwen, Wang Yuan, Liu Yuexia, and Xu Xi.
Forensic Science Technical Regulations for Inspection of Broken Traces of Glass
1 Scope
This document stipulates the inspection content and requirements, inspection methods and identification opinions of ordinary glass in the field of forensic science.
This document is suitable for the inspection and identification of broken traces of ordinary glass in the field of forensic science.
2 Normative reference documents
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
broken glass traces glassfracture
The crack shape and distribution of cracks formed when glass breaks (breaks) under load.
3.2
hole hole
The spatial shape formed by the loss of part of the glass under the action of load.
3.3
bevelfracture
After the glass is broken (broken) under load, the tensile stress surface at the point of application will be an angular fracture shape.
3.4
columnar fracture columnarfracture
After the glass is broken (broken) under load, the tensile stress surface at the point of application becomes a cylindrical fracture shape.
3.5
layer crackconcentriccircle
When glass breaks (breaks) under load, a crack appears in the center of the fragment and rapidly expands radially around it, forming a
Layers of circular cracks.
3.6
radiationgrainradiationgrain
When the glass breaks (breaks) under load, it will form a curve with different degrees of bending centered on the stress point and along the location of the maximum tensile stress.
Cracks that extend from the plane to all sides.
3.7
tangentialcrack
When glass breaks (breaks) under load, a circular or arc-shaped crack is formed with the point of action as the center and a certain length as the radius.
3.8
tipgrain
When the glass breaks (breaks) under load, radial cracks with opaque cracks and uneven cracks appear at the end of the radial pattern.
...
