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GA/T 1240-2015: Methods for latent fingerprint development by iodine in forensic science
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GA/T 1240-2015 | English | 149 |
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Methods for latent fingerprint development by iodine in forensic science
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GA/T 1240-2015
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Basic data | Standard ID | GA/T 1240-2015 (GA/T1240-2015) | | Description (Translated English) | Methods for latent fingerprint development by iodine 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 | 5,526 | | 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, real face room environmental requirements, operating procedures and precautions for iodine smearing. This standard applies to the visualization of potential fingerprints on light-colored non-metallic objects. | GA/T 1240-2015: Methods for latent fingerprint development by iodine in forensic science---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.
Methods for latent fingerprint development by iodine in forensic science
ICS 13.310
A92
People's Republic of China Public Security Industry Standards
Forensic science fingerprints appear iodine smoked
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. Chinese People's Public Security University, Ministry of Public Security Evidence Identification Center.
The main drafters of this standard. Shihai Qing, JIANG, often Parker.
Forensic science fingerprints appear iodine smoked
1 Scope
This standard specifies the method of iodine smoked fingerprints appear principle, equipment, reagents, laboratory environmental requirements, procedures and precautions.
This standard applies to latent fingerprints appear on the light non-metallic objects.
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
Terms and definitions GA/T 144-1996 define apply to this document.
Principle 4 show
When iodine at room temperature or heated gases sublimate, it will be attached to the grease and fingerprints of sweat staining substances will fingerprints, which was shot
India; or produce a chemical reaction with the fingerprints of unsaturated fatty substance so that the hand stamped line becomes brown, thus showing fingerprints.
5 equipment, reagents, laboratory environmental requirements
5.1 Device
Fume hood, iodine and other smoked.
5.2 Reagents
Iodine, ether, ethanol, 1,1,2-trichloro-1,2,2-trifluoroethane, dichloromethane, [alpha] -naphthoflavone like.
5.3 Environmental Laboratory
Health clean, well-ventilated.
6 steps and precautions
6.1 Procedure
6.1.1 solution preparation (Formulations)
Iodine Recipe. iodine particles dissolved in diethyl ether or ethanol, diethyl ether or ethanol saturated solution dubbed iodine.
Fixed Formulation. 0.3gα- naphthoflavone (7,8-benzo-flavone) was dissolved in 10mL dichloromethane was added 90mL of 1,1,2-trichloro -
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