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GA/T 1672-2019 English PDF

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GA/T 1672-2019: Forensic sciences - Terminology for examination of tool mark
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PDF similar to GA/T 1672-2019


Standard similar to GA/T 1672-2019

GB/T 37230   GA/T 1393   GB 13954   GA/T 2000.346   GA/T 2000.148   GA/T 1673   

Basic data

Standard ID GA/T 1672-2019 (GA/T1672-2019)
Description (Translated English) Forensic sciences - Terminology for examination of tool mark
Sector / Industry Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard A90
Classification of International Standard 13.310
Word Count Estimation 50,577
Date of Issue 2019
Date of Implementation 2019-12-01
Issuing agency(ies) Ministry of Public Security

GA/T 1672-2019: Forensic sciences - Terminology for examination of tool mark

---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.
Forensic sciences - Terminology for examination of tool mark ICS 13.310 A90 Public Safety Industry Standard of the People's Republic of China Terminology of forensic tools trace inspection Published on October 14,.2019 2019-12-01 Implementation Issued by the Ministry of Public Security of the People's Republic of China

Contents

Foreword Ⅲ 1 Scope 1 2 Terms and definitions 1 References 35 Index 36

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Criminal Technology Standardization Technical Committee Trace Inspection Sub-Committee (SAC/TC179/SC9) and Be in charge. This standard was drafted by. China Criminal Police College, Ministry of Public Security Material Evidence Appraisal Center. The main drafters of this standard. Wang Zhen, Liu Jin, Zang Taiqi, Li Dawu, Xie Dongbai, Zhou Hao. Terminology of forensic tools trace inspection

1 Scope

This standard specifies general terms for tool trace inspection, tool structure terms, and tool trace terms. This standard applies to the inspection of tool traces in the field of forensic science, and can also be used in reference in other fields.

2 Terms and definitions

2.1 Deformation Changes in the shape and size of objects caused by external factors. 2.1.1 Plastic deformation The object is deformed by the external force, and the part that cannot be recovered after the external force is removed is deformed. 2.1.2 Elastic deformation The object is deformed by the external force, and the part that can recover when the external force is removed is deformed. 2.2 Elasticity The morphological change of the object under the action of external force, the nature of the original state can be restored by removing the force. 2.3 Plasticproperty Under a given load, the object produces permanent deformation characteristics. 2.4 Strength The ability of an object to resist destruction when subjected to external forces or other effects. 2.5 Hardness The ability of the object to resist the pressing of hard objects into its surface. 2.6 Roughness The micro-geometric characteristics of the small pitch and peaks and valleys on the processed surface of the object. 2.7 Toolmarkascertainment Analyze the deformation found at the scene to determine the technical work left behind by the suspect in the criminal activity. 2.8 Tool type inference tooltypedifferentiation According to the shape, structure, forming conditions and other factors of the tool marks on the spot, the inspection process of the type of the tool with traces is analyzed.

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