Ignitable Liquids Database
Substrate Database
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Classification Criteria and Definitions

 

Classification Criteria


The intent of the ILRC database with its associated liquid repository is to provide a FREE searchable resource that allows a laboratory to isolate an ignitable liquid of interest for inclusion into an in-house reference collection. Commercial products are obtained from manufacturers and distributors then repackaged for distribution using the product name. The database is designed for screening purposes only; it does not replace ASTM requirements for an in-house reference collection. Classification of the ignitable liquids within the database parallels the ASTM E1618-11 and is a consensus from a committee of practicing fire debris analysts.

 
Predominant profile:
The predominant profile identity is based upon the bulk of the pattern not necessarily on the numerical value of the ion chromatograms.
Hydrocarbon range:
The hydrocarbon range is based on the predominant liquid pattern.
Miscellaneous: Miscellaneous may be composed of two or more distinct patterns.
Dearomatized:
Samples formerly classified as "dearomatized" have been reclassified with the term "dearomatized" included in the supplemental information that can be used in the keyword search.
Blend:
Blends are classified as miscellaneous.
• In heavy petroleum distillates, the dominant aromatic compound is equal to or greater than 50% of the dominant n-alkane compound (examples: SRN 117 and 118).
• Blends with a heavy component that likely won't be seen in debris without a solvent extraction will be classified as both miscellaneous and by the pattern minus the heavy portion. 
In medium petroleum distillates, it is not uncommon to see elevated aromatics (example: SRN 43).
Oxygenated Solvents:
One or  more of the five major peaks (based on peak height) in the liquid, is an oxygenated compound.  It should be noted, if the oxygenated compound is present and is not identified as one of the five major peaks, it will be classified as a Miscellaneous product.
Insecticides:
Insecticides are classified based on the solvent vehicle in the product.

 

 

Definitions

SRN: The Sample Reference Number identifies each entry.
Brand Name: The brand and product name assigned by the distributor.
Hydrocarbon Range: The peaks on the TIC lie within this range on the hydrocarbon (alkane) ruler.
Predominant Ion Profile: The predominant type of extracted ion profile.
Major Peaks: Some of the major peaks in each sample have been identified.
Classification: For degraded samples, the term classification": refers to the original source of the ignitable liquid and not necessarily the ASTM classification.
Product Use: This is the intended use for which the product is marketed.
Condition: The condition of the sample, either unweathered or % weathered.
Date of Run: The date the sample was analyzed.
Sample Availability (Y/N): Indicates if a physical sample of the liquid is available from the NCFS repository.
Supplemental Information: Any additional information available regarding the sample.
Dataset: This is the Agilent dataset created when the sample was analyzed, consisting of the data.ms and pre_post.ini files in a self-extracting Zip file. Executing the file will extract the dataset to a folder on the client system. The default path is: c:\windows\desktop\ilrc\nnnnnnnn.d where nnnnnnnn is the SRN.
Spreadsheet: The TICs and Ion Profiles for each entry are provided in a MS Excel spreadsheet. The spreadsheet is useful to display details of peaks by expanding the horizontal scale of the TIC. The spreadsheet also provides a printer friendly method of printing the TIC(s).
MSDS: The Material Safety Data Sheet is also provided, when available.

 

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