GA/T 2005-2022 in English
VALIDForensic sciences-Method for disassembling inspection of non-standard cartr idges
- Issued on:2022-09-30
- Implemented on:2023-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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本文件规定了法庭科学领域采用分解检验法检验火药动力非制式枪弹的检验对象、设备、检验步骤和鉴定意见等。
本文件适用于法庭科学领域，以火药为发射动力的非制式枪弹的检验。
Introduction
Analysis of the technical framework of the standard
As a mandatory standard (GA) for the public security industry, this document establishes a complete set of decomposition inspection method systems for the inspection of non-standard ammunition. The standard text adopts the modular structure specified in GB/T 1.1-2020, including 7 core chapters and 3 normative appendices.
Definition of key terms
| Terms | Definition basis | Inspection application |
|---|---|---|
| Non-standard ammunition | GA/T 1506-2018 3.2.3 | Refers to homemade ammunition that does not meet the national military/police standards |
| Disassembly inspection method | 3.1 of this standard | The method of analyzing the structural characteristics of ammunition by physical disassembly |
Inspection process specifications
Chapter 4 of the standard specifies the inspection steps in detail:
- Safety pretreatment: must be carried out in an explosion-proof environment
- Macro inspection: take proportional photography in accordance with GB/T 23865
- Disassembly operation: use a special bullet extractor to separate the bullet and the cartridge case
- Gunpowder analysis: measure the charge and particle morphology
Technology evolution analysis
Compared with the 2008 version of the old standard, this version has the following major improvements:
- Added digital record requirements (referenced GB/T 29532)
- Refine the specifications of the disassembly tool
- Supplement the dud handling procedure
Implementation suggestions
In the inspection of a gun case, the following findings were found through a standardized decomposition process:
1. The bullet diameter was 9.02mm (exceeding the standard ±0.05mm)
2. The propellant was a mixture of black powder and nitrocellulose
Based on this, it was determined that the ammunition involved met the non-standard characteristics.
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