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GB/T 41777-2022: Forensic sciences - Examination methods for explosive strength
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Forensic sciences - Examination methods for explosive strength
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GB/T 41777-2022
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Basic data | Standard ID | GB/T 41777-2022 (GB/T41777-2022) | | Description (Translated English) | Forensic sciences - Examination methods for explosive strength | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A92 | | Word Count Estimation | 10,173 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41777-2022: Forensic sciences - Examination methods for explosive strength---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 - Examination methods for explosive strength
ICS 07.140
CCSA92
National Standards of People's Republic of China
Forensic Science Explosive Power Test Method
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 Test 1
5.1 Examination of explosive medium and high explosives1
5.2 Calculation of TNT Equivalent of Explosives 1
5.3 Calculation of overpressure of air free field explosion shock wave 2
5.4 Damage Scope Assessment 2
6 Inspection conclusion 3
Appendix A (Informative) Table 4
Reference 7
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. China Criminal Police Academy, Guizhou Police Academy, Physical Evidence Identification Center of the Ministry of Public Security, Criminal Investigation Bureau of the Ministry of Public Security,
Mining and Metallurgy Technology Group Co., Ltd.
The main drafters of this document. Zhang Yanchun, Zhang Hongguo, Chen Lihong, Cai Jianhua, Sun Yuyou, Zhang Jifeng, Fan Wulong, Shi Haixu, Niu Yong, Miao Guohua,
Wang Yongcan, Ru Chengbo, Duan Yun, Xiong Daiyu, Zhou Yinxuan, Wang Xiaomin, Dai Qian.
Forensic Science Explosive Power Test Method
1 Scope
This document describes a method for testing the explosive power of explosives in the field of forensic science.
This document is applicable to the test of the explosive power of explosives with an equivalent of not less than 30gTNT in the field of forensic science, and can also be referred to in other fields.
use.
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
Terms and definitions defined in GB/T 41775 apply to this document.
4 Principles
The mass of the explosive in the explosive is converted to TNT equivalent, and the explosion impact in the air free field is calculated according to the converted TNT equivalent
The range of damage caused by the wave to the personnel is to evaluate the explosive power of the explosive.
5 Inspection
5.1 Inspection of Explosive Medium and Fire Explosives
Identify the types of explosives in explosives with reference to GB/T 41845.
5.2 Calculation of TNT Equivalent of Explosives
According to the TNT equivalence coefficient of the explosive and the mass of the explosive sample, the TNT equivalent of the explosive can be calculated according to formula (1).
The TNT equivalence coefficients of the types of explosives are shown in Table 1).
WTNT=λWEXP (1)
where.
WTNT---the TNT equivalent of the explosive medium and explosive, the unit is kilogram (kg);
λ --- TNT equivalence coefficient of explosives;
WEXP---the mass of explosive medium-fire explosives, in kilograms (kg).
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