1. Scope
1.1 This test method covers the extraction, derivatization, and identification of fatty acids indicative of vegetable oils and fats in fire debris and liquid samples. Note that this procedure will also extract animal oils and fats, as these are similar in chemical composition to vegetable oils and fats. Herein, the phrase oils and fats will be used to refer to both animal- and vegetable-derived oils and fats. 1.2 This test method is suitable for successfully extracting oil and fat residues having 8 to 24 carbon atoms. 1.3 This test method cannot replace the requisite knowledge skills, or abilities acquired through appropriate education, training, and experience and should be used in conjunction with sound professional judgment. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Emerging use of green fuels has seen forensic cases involving the analysis of vegetable oils used in fire investigations. This standard could be used to analyze debris or liquid samples to determine if vegetable oils or fats are present.
Keywords
fire debris samples; vegetable oils; animal fats; fatty acid methyl esters; forensic sciences; gas chromatography; ignitable liquid residues; mass spectrometry
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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