GB/T 41777-2022 English PDFUS$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 41777-2022: Forensic sciences - Examination methods for explosive strength Status: Valid
Basic dataStandard 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 forewordThis 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 Method1 ScopeThis 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 referencesThe 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 Terms3 Terms and DefinitionsTerms and definitions defined in GB/T 41775 apply to this document.4 PrinciplesThe 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 Inspection5.1 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). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 41777-2022_English be delivered?Answer: Upon your order, we will start to translate GB/T 41777-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 41777-2022_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 41777-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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