GB/T 24572.1-2009Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 1: Solvent extraction (English PDF)
火灾现场易燃液体残留物实验室提取方法 第1部分：溶剂提取法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 30, 2009
Implementation date
April 1, 2010
Scope
GB/T 24572.1-2009 is the English-translated version of 火灾现场易燃液体残留物实验室提取方法 第1部分：溶剂提取法.
GB/T 24572.1-2009 is the Chinese standard "Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 1: Solvent extraction".
Its scope clause reads: 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. Its clauses include terms and definitions; principles and characteristics; reagents, materials and equipment.
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Document preview — GB/T 24572.1-2009
National Standard of the People's Republic of China
- ICS
- 13.220.01
- Classification
- C 82
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Principles and Characteristics
- 5 reagents, materials and equipment
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.
GB 12955-2024 | GB 14102.1-2024 | GB/T 26784-2011 | GB/T 24572.6-2026 | GB/T 24572.5-2013 | GB/T 24572.3-2009 | […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 24572.2-2009 — Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 2: Direct headspace vapors sampling
GB/T 24572.3-2009 — Standard practice for separation and concentration of ignitable liquid residues from fire debris samples - Part 3: Activated charcoal absorption
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)
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