GB/T 24572.4-2009 English PDF

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GB/T 24572.4-2009: Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 4: Solid phase microextraction (SPME)
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 24572.4-2009	149	Add to Cart	2 days	Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 4: Solid phase microextraction (SPME)	Valid

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Basic data

Standard ID: GB/T 24572.4-2009 (GB/T24572.4-2009)
Description (Translated English): Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 4: Solid phase microextraction (SPME)
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: C82
Classification of International Standard: 13.220.01
Word Count Estimation: 5,514
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 solid-phase micro- extraction method flammable liquid fire scene residues, installations and equipment and test procedures. This section applies to laboratory extraction gasoline, kerosene, diesel, paint thinner and flammable liquids such as ethanol fire common residues.

GB/T 24572.4-2009: Standard practice for separation and concentration of ignitable liquid residues from fire debris samples -- Part 4: Solid phase microextraction (SPME)

---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.
Standard practice for separation and concentration of ignitable liquid residues from fire debris samples Part 4. Solid phase microextraction (SPME) ICS 13.220.01 C82 National Standards of People's Republic of China Scene of the fire flammable liquid residue laboratory extraction method Part 4. Solid Phase Micro 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 4 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 Fire Fire Investigation (SAC/TC113/SC11) centralized. This section is drafted. Tianjin Fire Research Institute of Ministry of Public Security. The main drafters of this section. Deng Zhenyu, Lu Zhi Bao, Geng Huimin, Tian Guihua, Liang Guofu, Fan Zilin. Scene of the fire flammable liquid residue laboratory extraction method Part 4. Solid Phase Micro Extraction

1 Scope

GB/T 24572 provisions of this part of the scene of the fire principle flammable liquid residue of solid phase micro-extraction method and characteristics, equipment and devices Material and test procedure. This section applies to laboratory extraction gasoline, kerosene, diesel fuel, paint thinner and alcohol and other common fire flammable liquid residue.

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 By solid phase micro extraction means or extracted samples to analyze samples of substances in the upper part of the space.

4 Principles and Characteristics

4.1 Principle The samples placed in a sealed container and solid phase micro extraction fiber coated with a first stationary phase extends into the top space of a closed container means in. In the samples of possible flammable liquid residue composition at a certain temperature will volatilize and filled into the container headspace, and the department's Fiber head adsorbed. After adsorption for a certain time, the head of the fiber insertion by gas chromatography (GC) or gas chromatography - mass spectrometry (GC-MS) Inlet thermal desorption, parse out the components by gas chromatography (GC) or gas chromatography - mass spectrometry (GC-MS) detection. 4.2 Characteristics Solid phase micro extraction characteristics are as follows. a) does not apply to the extraction of oil, high boiling substances; b) does not destroy the samples of appearance shape can be extracted from traces of flammable liquid residues in samples and can be repeated extraction; c) suitable for flammable liquids extracted from aqueous samples in the residue; d) by the method treated samples, sealed after solvent extraction can also be used again.

5 installations and equipment

5.1 heating device Oven or other heating apparatus with temperature control. Heating means within the volume should be large enough to ensure that you can place multiple samples simultaneously containing capacity Device. Temperature range of heating equipment is preferably 40 ℃ ~ 150 ℃. ......

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