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GB/T 16840.3-2021 English PDF

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GB/T 16840.3-2021: Technical determination methods for electrical fire evidence - Part 3: Auger electron spectroscopy component analytic method
Status: Valid

GB/T 16840.3: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 16840.3-2021119 Add to Cart 3 days Technical determination methods for electrical fire evidence - Part 3: Auger electron spectroscopy component analytic method Valid
GB 16840.3-1997279 Add to Cart 3 days [GB/T 16840.3-1997] Technical determination method for electrical fire cause. Part 3: Component aralytic method Obsolete

Similar standards

GB/T 16840.2   GB/T 14403   GB/T 14402   GB/T 16840.7   GB/T 16840.8   GB/T 16840.4   

Basic data

Standard ID: GB/T 16840.3-2021 (GB/T16840.3-2021)
Description (Translated English): Technical determination methods for electrical fire evidence - Part 3: Auger electron spectroscopy component analytic method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C80;C89
Word Count Estimation: 6,670
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 16840.3-2021: Technical determination methods for electrical fire evidence - Part 3: Auger electron spectroscopy component analytic method


---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.
Technical determination methods for electrical fire evidence - Part 3.Auger electron spectroscopy component analytic method ICS 13.220.20 CCSC80/89 National Standards of People's Republic of China Replace GB/T 16840.3-1997 Technical Appraisal Method of Electrical Fire Trace Material Evidence Part 3.Auger Analysis Released on 2021-08-20 2021-08-20 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Table of contents

Foreword Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Principle 1 5 Equipment, equipment and reagents 1 5.1 Equipment 1 5.2 Equipment 1 5.3 Reagent 2 6 Inspection material 2 6.1 Processing of inspection materials 2 6.2 Note 2 7 Method Step 2 8 Ingredient characteristics 2 8.1 One-time short-circuit melting mark 2 8.2 Secondary short circuit melting mark 3

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" Drafting. This document is the third part of GB/T 16840 "Technical Appraisal Method for Electrical Fire Trace Material Evidence". GB/T 16840 has been released The following parts. ---Part 1.Macro Law; ---Part 2.Remanence detection method; ---Part 3.Auger analysis method; ---Part 4.Metallographic Analysis; ---Part 5.Identification and extraction methods of electrical fire material evidence; ---Part 6.SEM microscopic morphology analysis method; ---Part 7.EDS component analysis method; ---Part 8.Thermal analysis method. This document replaces GB/T 16840.3-1997 "Technical Appraisal Method for the Cause of Electrical Fire Part 3.Component Analysis Method", and Compared with GB/T 16840.3-1997, in addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Changed the scope of application (see Chapter 1, Chapter 1 of the.1997 edition); --- Added a chapter "Normative Reference Documents" (see Chapter 2); --- Deleted all the terms and definitions of the.1997 edition, and added the terms and definitions of "holes" (see Chapter 3, Chapter 2 of the.1997 edition) chapter); ---Added the equipment, reagents, and parameters required in the analysis process (see Chapter 5, Chapter 4 of the.1997 edition); ---Change the "judgment content" to "composition characteristics", and modify and improve the relevant content (see Chapter 8, Chapter 6 of the.1997 edition) chapter); --- Deleted the written procedures that should be performed when submitting for inspection and appraisal (see Chapter 7 of the.1997 edition). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the Ministry of Emergency Management of the People's Republic of China. This document is under the jurisdiction of the National Fire Standardization Technical Committee (SAC/TC113). This document was drafted by. Shenyang Fire Research Institute, Ministry of Emergency Management. The main drafters of this document. Di Man, Xia Dawei, E Dazhi, Zhang Ming, Wu Ying, Zhao Changzheng, Gao Wei. The previous versions of this document and the documents replaced are as follows. ---GB/T 16840.3-1997; ---This is the first revision.

Introduction

The identification of electrical fire evidence is an important part of the investigation of the cause of fire by emergency rescue and firefighting agencies, especially when it is accompanied by national The improvement of the legal system of the family, the enhancement of citizens’ awareness of the legal system, the identification of physical evidence has been used as strong evidence for the identification of the cause of the fire, and it is a fire rescue agency. The determination of the cause of the fire provides scientific, fast and accurate technical support. In this regard, my country has established a technology for evidence of electrical fire traces. National standard system for identification methods. In this standard system, GB/T 16840 "Technical Appraisal Method for Electrical Fire Trace Material Evidence" is a guide for me The method and basis for the relevant agencies of the country to engage in the identification of electrical fire evidence is planned to consist of eight parts, and the purpose is to establish Trace physical evidence for macro analysis, remanence analysis, Auger analysis, metallographic analysis, physical evidence identification and extraction, SEM microscopic morphology analysis, and component analysis And the method and basis for thermal analysis. ---Part 1.Macro Law; ---Part 2.Remanence detection method; ---Part 3.Auger analysis method; ---Part 4.Metallographic Analysis; ---Part 5.Identification and extraction methods of electrical fire material evidence; ---Part 6.SEM microscopic morphology analysis method; ---Part 7.EDS component analysis method; ---Part 8.Thermal analysis method. Auger analysis method is a quantitative analysis method used in the identification of electrical fire traces in my country. This time to GB/T 16840.3 The revision of the document focuses on the rigor and standardization of document preparation and presentation, and has improved part of the content to enable the identification of fire traces The author has evidence to rely on when adopting Auger analysis method to improve work efficiency. Technical Appraisal Method of Electrical Fire Trace Material Evidence Part 3.Auger Analysis

1 Scope

This document specifies the principles, equipment, equipment and reagents, inspection materials and methods of the Auger analysis method among the technical identification methods for electrical fire traces. Method steps and composition characteristics. This document is applicable to the use of Auger electricity on the inner surface of the hole on the cross section of the copper wire short-circuit melting mark extracted from the fire site during the fire investigation. The sub-energy spectrometer performs component analysis to identify whether the copper wire short-circuit melt mark is a primary short-circuit melt mark or a secondary short-circuit melt mark.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 16840.1 Technical Appraisal Method of Electrical Fire Trace Material Evidence Part 1.Macro Method

3 Terms and definitions

The following terms and definitions defined in GB/T 16840.1 apply to this document. 3.1 Cavity Different sizes and shapes of pores, shrinkage holes, porosity, etc. produced in the cross section and inside of the melt mark.

4 Principle

The formation mechanism of the internal holes of the short-circuit melt mark is more complicated, mainly because the gas adsorbed by the surrounding environment during the solidification of the metal is trapped Formed in the internal organization. Due to the difference in the ambient atmosphere formed by the primary short-circuit melt mark and the secondary short-circuit melt mark, when the wire is short-circuited and melted When it melts and solidifies instantly, different ambient gas components must be melted into the metal, leaving different short circuits on the inner surface of the short-circuit melting hole. Certain characteristics of environmental conditions. 5 Equipment, equipment and reagents 5.1 Equipment The following main instruments and equipment should be provided. ---Scanning electron microscope and its auxiliary equipment; ---Auger electron spectrometer and its auxiliary equipment. 5.2 Equipment Tweezers, pliers, conductive glue.
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