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NCJ Number: 210778 Find in a Library
Title: Identification of Isopar H in Vinyl Flooring
Journal: Journal of Forensic Sciences  Volume:50  Issue:4  Dated:July 2005  Pages:865-872
Author(s): Sharee Booke Wells M.S.
Date Published: July 2005
Page Count: 8
Publisher: http://www.astm.org/ 
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: Twenty-nine collections from 5 major vinyl manufacturers (n=72 samples) were analyzed to identify plasticizers with recognizable ignitable-liquid patterns.
Abstract: The 72 samples were analyzed by using passive headspace concentration in accordance with the American Society for Testing and Materials and gas chromatographic-mass spectrometric analysis. Twelve randomly chosen vinyl samples were burned with a propane torch for approximately 10 seconds. Burning the vinyl samples made no significant change in the total ion chromatogram. The total ion chromatograms of the unburned and burned samples were similar except for the addition of a benzyl chloride peak at retention time 7.274 in the burned samples of four manufacturers. Ion 91 was used to identify the presence of the benzyl chloride. Of the 72 vinyl samples analyzed, 68 contained significant levels of either a Norpar 13 or Norpar 14 product. All collections contained TXIB. Isopar H was only detected in Armstrong's vinyl flooring. As an ignitable liquid, Isopar H is marketed as charcoal starters, paint thinners, copier toners, and solvents. Burning the vinyl samples did not make it difficult to identify the ignitable liquid plasticizer used. The findings suggest that at the very least, a disclaimer statement should be added to all fire-debris reports that involve vinyl flooring as a matrix in which an Isopar H product and/or Norpar product is identified. Further studies are needed. 10 figures and 12 references
Main Term(s): Police policies and procedures
Index Term(s): Arson; Arson investigations; Forensic sciences; Investigative techniques
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http://www.ncjrs.gov/App/publications/abstract.aspx?ID=210778

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