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GB/T 16840.6-2012: Technical determination methods for electrical fire evidence -- Part 6: Micro-morphological analysis method using scanning electron microscope
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 16840.6-2012 | English | 169 |
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Technical determination methods for electrical fire evidence -- Part 6: Micro-morphological analysis method using scanning electron microscope
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GB/T 16840.6-2012
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Basic data | Standard ID | GB/T 16840.6-2012 (GB/T16840.6-2012) | | Description (Translated English) | Technical determination methods for electrical fire evidence -- Part 6: Micro-morphological analysis method using scanning electron microscope | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C82 | | Classification of International Standard | 13.220.20 | | Word Count Estimation | 7,768 | | Quoted Standard | GB/T 13966; GB/T 16840.1 | | Regulation (derived from) | National Standards Bulletin 2012 No. 41; National Standards Commission recently released 16 national standards for fire protection | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the electrical fire Traces technical appraisal methods scanning electron microscopy (SEM) analysis of the microstructure of terms and definitions, principles, equipment, sample preparation, observation site and the criterion. This | GB/T 16840.6-2012: Technical determination methods for electrical fire evidence -- Part 6: Micro-morphological analysis method using scanning electron microscope
---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.
ICS13.220.20
C82
National Standards of People's Republic of China
Electrical fire technical traces of evidence identification methods
Part 6. SEM morphology analysis
Part 6. Micro-morphologicalanalysismethodusing
Issued on. 2013-10-01 2012-12-31 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 16840 "mark evidence of electrical fire technical appraisal method" consists of the following components.
--- Part 1. Macro method;
--- Part 2. remanence assay;
--- Part 3. Auger analysis;
--- Part 4. Metallographic analysis;
--- Part 5. electrical fire evidence identification and extraction methods;
--- Part 6. SEM microstructure analysis.
This is Part 6 GB/T 16840 in.
This section according to the rules GB/T 1.1-2009 given compilation.
This section presents the People's Republic of China Ministry of Public Security.
This part of the National Technical Committee of Standardization Technical Committee Fire Fire Investigation (SAC/TC113/SC11) centralized.
This section drafted by. Ministry of Public Security Shenyang Fire Research Institute.
The main drafters of this section. Di Man, Zhang, Zhao Long, Xia Dawei, Qi Zi Bo, Gao Wei, Wu Ying.
This section first release.
Electrical fire technical traces of evidence identification methods
Part 6. SEM morphology analysis
1 Scope
This section GB/T 16840 specifies the electrical fire mark evidence the technical appraisal methods scanning electron microscope (SEM) morphology
Analysis of terms and definitions, principles, equipment, sample preparation, the observation site and the criterion.
Application of SEM to the fire scene molten metal traces microstructure analysis in this section applies to fire investigation, according to melt microscopic marks
Morphology identification mark melt melting properties.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 13966 Analytical Instruments terms
GB/T 16840.1 mark evidence of electrical fire technical appraisal methods - Part 1. Macro method
3 Terms and Definitions
GB/T 13966 and GB/T 16840.1 as defined in the following terms and definitions apply to this document.
3.1
Secondary electron secondaryelectrons
Samples outer electrons of atoms excited by the incident electrons emitted to the inelastic scattering of electrons outside the sample.
3.2
Secondary electron imaging secondaryelectronimage
After being secondary electron imaging detector receives.
3.3
SEM resolving power solvingpowerforSEM
On the secondary electron image measured by the ratio of the minimum distance and the magnification can be clearly separated between the two object points.
3.4
Magnification magnifyingpower
Length ratio of the length of the original physical object enlarged.
3.5
Effective magnification effectivemagnifyingpower
The ratio of the human eye resolution and the resolution of the instrument.
3.6
Melting marks meltedmark
In the external short circuit arc flame or high temperature, the metal surface, especially the formation of copper, aluminum conductor circular, crater-like, nodular, sharp
Shaped and other irregular Microfused or full penetration marks.
3.7
Melting marks the morphology of micro-morphologyofmeltedmark
Under certain magnification observable traces Minute melt form.
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