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GA/T 1238-2015: Technical specifications for latent fingerprint development by DFO in forensic science
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| GA/T 1238-2015 | English | 149 |
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Technical specifications for latent fingerprint development by DFO in forensic science
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GA/T 1238-2015
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Basic data | Standard ID | GA/T 1238-2015 (GA/T1238-2015) | | Description (Translated English) | Technical specifications for latent fingerprint development by DFO in forensic science | | Sector / Industry | Public Security (Police) Industry Standard (Recommended) | | Classification of Chinese Standard | A92 | | Classification of International Standard | 13.310 | | Word Count Estimation | 5,582 | | Date of Issue | 2015-02-11 | | Date of Implementation | 2015-02-11 | | Quoted Standard | GA/T 144-1996 | | Regulation (derived from) | Notice on Publication of Public Safety Industry Standard (Year 2015); Industry Standard Record Announcement No. 2016 (No. 197) | | Issuing agency(ies) | Ministry of Public Security | | Summary | This standard specifies the principles, equipment, reagents, laboratory environmental requirements, operating procedures and precautions for DFO to display fingerprints. This standard applies to the development of potential fingerprints on isoparametric objects on most papers. | GA/T 1238-2015: Technical specifications for latent fingerprint development by DFO in forensic science
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Technical specifications for latent fingerprint development by DFO in forensic science
ICS 13.310
A92
People's Republic of China Public Security Industry Standards
Visualizing Fingerprints Forensic Science DFO Technical Specifications
forensicscience
Issued on. 2015-02-11
2015-02-11 implementation
People's Republic of China Ministry of Public Security
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Distribution of this document
Institutions do not assume the responsibility to identify these patents.
This standard by the National Standardization Technical Committee on Forensic Science and Technology fingerprint examination Standardization Technical Committee (SAC/TC179/SC3) mention
And the focal point.
This standard was drafted. Ministry of Public Security Evidence Identification Center.
The main drafters of this standard. the song will be in English, Hu Wenfeng, Marong Liang, Wu Hao, Xue Jing.
Visualizing Fingerprints Forensic Science DFO Technical Specifications
1 Scope
This standard specifies the DFO show fingerprints principles, equipment, reagents, laboratory environmental requirements, procedures and precautions.
This standard applies to the permeability of the object appear latent fingerprints on most paper.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GA/T 144-1996 fingerprint professional terminology
3 Terms and Definitions
GA/T 144-1996 defined by the following terms and definitions apply to this document.
3.1
1,8-9-one 1,8-diazafluoren-9-one; DFO
Amino acids, peptides fluorescence analysis reagents, yellow crystals reacted with α- amino acid to yield a highly fluorescent substance.
3.2
Hydrofluoroether 7100 hydrogenfluorineether7100; HFE7100
A colorless clarified liquid with a slight odor of fluoride, wherein Methoxy-9-fluoro-butane (C4F9OCH3) content of 99.5%, can be used
To replace freon and other substances.
Principle 4 show
DFO with fingerprints remaining material in the amino acid reaction, the reaction product is blue-green light (470nm ~ 550nm) excitation will be issued
Orange-red fluorescence, thereby fingerprints revealed.
5 equipment, reagents, laboratory environmental requirements
5.1 Device
Electric oven, DFO show cabinet, light blue-green, orange-red filter or filters and the like.
5.2 Reagents
The DFO, ethanol, acetic acid, ethyl acetate, 1,1,2-trichloro-1,2,2-trifluoroethane, petroleum ether, and other organic solvents HFE7100.
5.3 Environmental Laboratory
Health clean, well-ventilated, with darkroom conditions.
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