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GB/T 24572.1-2009: Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 1: Solvent extraction
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 24572.1-2009 | English | 149 |
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Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 1: Solvent extraction
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GB/T 24572.1-2009
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Basic data | Standard ID | GB/T 24572.1-2009 (GB/T24572.1-2009) | | Description (Translated English) | Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 1: Solvent extraction | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C82 | | Classification of International Standard | 13.220.01 | | Word Count Estimation | 5,518 | | Date of Issue | 2009-10-30 | | Date of Implementation | 2010-04-01 | | Regulation (derived from) | National Standard Approval Announcement 2009 No.12 (Total No.152) | | 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 principles and characteristics of the fire scene flammable liquid extraction residue, materials and equipment and test procedures, reagents. This section applies to the fire scene common flammable liquid residues. | GB/T 24572.1-2009: Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 1: Solvent extraction
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Standard practice for separation and concentration of ignitable liquid residues from fire debris samples Part 1. Solvent extraction
ICS 13.220.01
C82
National Standards of People's Republic of China
Scene of the fire flammable liquid residue laboratory extraction method
Part 1. Solvent extraction
Posted 2009-10-30
2010-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 24572 "scene of the fire flammable liquid residue laboratory extraction method" is divided into five sections.
--- Part 1. solvent extraction;
--- Part 2. Direct headspace method;
--- Part 3. Activated Carbon Adsorption;
--- Part 4. Solid phase micro extraction;
--- Part 5. Purge and Trap Method.
This is Part 1 GB/T 24572 of.
This section presents the People's Republic of China Ministry of Public Security.
This part of the National Technical Committee of Standardization Technical Committee eleventh Fire (SAC/TC113/SC11) centralized.
This section is drafted. Tianjin Fire Research Institute of Ministry of Public Security.
The main drafters of this section. Tian Guihua, Lu Zhi Bao, Deng Zhenyu, Fan Zilin, Geng Huimin, Liang Guofu.
Scene of the fire flammable liquid residue laboratory extraction method
Part 1. Solvent extraction
1 Scope
GB/T 24572 provisions of this part of the principles and characteristics of the fire scene flammable liquid extraction residue, reagents, materials and equipment and commissioning
Test steps.
This section applies to the fire scene common flammable liquid extract residues.
2 Normative references
The following documents contain provisions which, through reference GB/T 24572 in this section constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
GB/T 18294 (all parts) Identification of fire technology
GB/T 20162 Fire Identification evidence Extraction
3 Terms and Definitions
GB/T 18294 (all parts) and GB/T 20162 and established the following terms and definitions apply to this section.
3.1
With an organic solvent to the scene of the fire in the flammable liquid residue was extracted.
4 Principles and Characteristics
4.1 Principle
Soaked with solvent or solvents to clean with cotton wool dipped samples, flammable liquid residue component samples contained effectively dissolved out,
Then by extraction, filtration and concentration step, to give the test specimen instrumental analyzes.
4.2 Characteristics
Solvent extraction method has the following features.
a) be able to extract at least 1μL flammable liquid residue;
b) applies to the extraction of the smooth surface of the subject material, such as glass or interior glass container;
c) adapted to extract small samples of;
d) does not apply to a boiling point lower than solvent extraction of flammable liquids;
e) by this method treated samples, can not be extracted again;
f) the short time required to extract samples.
5 reagents, materials and equipment
5.1 Reagents
Suitable reagents based on the measured properties of the selected residues of flammable liquids, including benzene, petroleum ether, ethyl ether, carbon disulfide or n-hexane,
Recommended reagent purity HPLC grade.
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