GB/T 41776-2022 English PDF

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GB/T 41776-2022: Forensic sciences - Identification methods for ammunition
Status: Valid

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Basic data

Standard ID: GB/T 41776-2022 (GB/T41776-2022)
Description (Translated English): Forensic sciences - Identification methods for ammunition
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A92
Word Count Estimation: 22,265
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41776-2022: Forensic sciences - Identification methods for ammunition

---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 - Identification methods for ammunition ICS 07.140 CCSA92 National Standards of People's Republic of China Forensic Science Ammunition Identification Methods Published on 2022-10-12 2023-02-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Principle 1 5 Inspection material 1 6 Test 1 6.1 General Step 1 6.2 Inspection of appearance characteristics of ammunition 2 6.3 Inspection of the internal charge of the ammunition3 6.4 Analysis of explosion phenomenon 3 7 Judgment principle 3 8 Appraisal opinion 3 Appendix A (Informative) Typical Grenade Dimensions 4 Appendix B (Informative) Dimensions and Structure of Typical Launching Ammunition 5 Appendix C (Informative) Dimensions of Typical Aviation Bombs8 Appendix D (Informative) Dimensions and Structure of Typical Deployment Ammunition 9 Appendix E (Informative) Marking Characteristics of Common Grenades 12 Appendix F (Informative) Marking Characteristics of Common Artillery (Rocket) Projectiles 13 Appendix G (Informative) Marking Characteristics of Common Flares 17 Reference 18

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 of Standardization Documents" drafted. Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by the Ministry of Public Security of the People's Republic of China. This document is under the jurisdiction of the National Criminal Technology Standardization Technical Committee (SAC/TC179). This document is drafted by. Army Engineering University, Ministry of Public Security Material Evidence Identification Center, Armed Police Special Police College, Chinese People's Liberation Army 32184 force. The main drafters of this document. Gao Zhenru, Li Yuchun, Yang Li, Liu Qiang, Sun Yuyou, Fan Wulong, Zhang Jifeng, Sun Boxiang, Yao Ligang, He Yangyang, Li Hongyu, Ding Wen, Yang Guili, Wu Shuangzhang, Zhang Sheng, Huang Junyi. Forensic Science Ammunition Identification Methods

1 Scope

This document describes the method of ammunition identification in the field of forensic science. This document is applicable to the identification of suspected ammunition with a caliber above 20mm in the field of forensic science, and can also be used for reference in other fields.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 41775 Forensic Science Explosives Identification Terms

3 Terms and Definitions

GB/T 41775 as well as the following terms and definitions apply to this document. 3.1 ammunition ammunition Items wrapped in metal or non-metallic shells containing propelling charges, explosive charges or other fillings that can damage the target.

4 Principles

According to whether the appearance characteristics of the suspected ammunition are consistent with the ammunition, and whether the interior is charged, or whether it is explosive, identify whether it is an ammunition or not. And according to the physical characteristics and signs of suspected ammunition, the type of ammunition is analyzed.

5 Inspection materials

5.1 The original records of the appearance, shape, marking features, weight, and dimensions of the suspected ammunition. 5.2 The internal charge obtained after the suspected ammunition is decomposed. If it is suspected that the ammunition explodes during the decomposition process or the In order to detonate, the video of the explosion, photos of explosion traces, measurement data and other records are attached.

6 Inspection

6.1 General steps The inspection of suspected ammunition is generally divided into two steps. appearance feature inspection and internal charge inspection (or explosion phenomenon analysis). Analysis is an alternative execution step when the internal charge inspection conditions are not met (such as an explosion during the process of taking the charge, etc.). ......

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