ASTM E1386-00(2005)
(Practice)Standard Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Solvent Extraction
Standard Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Solvent Extraction
SIGNIFICANCE AND USE
This practice is useful for preparing extracts from fire debris for later analysis by gas chromatography, GC/MS, or GC/IR.
This is a very sensitive separation procedure, capable of isolating quantities smaller than 1 μL of ignitable liquid residue from a sample.
This practice is particularly useful when the potential for fractionation during separation must be reduced, as when attempting to distinguish between various grades of fuel oil.
This practice is particularly useful for the extraction of nonporous surfaces such as glass, or the interior of burned containers. It is also particularly well suited to the extraction of materials from very small samples.
This practice can be hampered by coincident extraction of interfering compounds present in the fire debris samples.
This practice may not be useful for the extraction of some Class 0 and Class 1 ignitable liquids, which may evaporate during the concentration step.
This is a destructive technique. Whenever possible, this technique should only be used when a representative portion of the sample can be reserved for reanalysis. Those portions of the sample subjected to this procedure may not be suitable for resampling. Consider using passive headspace concentration as described in Practice E 1412.
SCOPE
1.1 This practice covers the procedure for removing small quantities of flammable or combustible liquid residue from samples of fire debris using solvent to extract the residue.
1.2 This practice is suitable for successfully extracting flammable or combustible liquid residues over the entire range of concentrations.
1.3 Alternate separation and concentration procedures are listed in Test Method E1387.
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. For a specific hazard statement, see Note 1.
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Standards Content (Sample)
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Designation:E1386–00 (Reapproved 2005)
Standard Practice for
Separation and Concentration of Ignitable Liquid Residues
from Fire Debris Samples by Solvent Extraction
This standard is issued under the fixed designation E1386; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E1618 Test Method for Ignitable Liquid Residues in Ex-
tracts from Fire Debris Samples by Gas Chromatography-
1.1 This practice covers the procedure for removing small
Mass Spectrometry
quantities of flammable or combustible liquid residue from
samples of fire debris using solvent to extract the residue.
3. Summary of Practice
1.2 This practice is suitable for successfully extracting
3.1 A sample of fire debris is extracted with an organic
flammable or combustible liquid residues over the entire range
solvent. The extract is filtered and concentrated using dry
of concentrations.
nitrogen, filtered air, or inert gas.
1.3 Alternate separation and concentration procedures are
listed in Test Method E1387.
4. Significance and Use
1.4 This standard does not purport to address all of the
4.1 This practice is useful for preparing extracts from fire
safety concerns, if any, associated with its use. It is the
debris for later analysis by gas chromatography, GC/MS, or
responsibility of the user of this standard to establish appro-
GC/IR.
priate safety and health practices and determine the applica-
4.2 This is a very sensitive separation procedure, capable of
bility of regulatory limitations prior to use. For a specific
isolatingquantitiessmallerthan1µLofignitableliquidresidue
hazard statement, see Note 1.
from a sample.
2. Referenced Documents 4.3 Thispracticeisparticularlyusefulwhenthepotentialfor
2 fractionation during separation must be reduced, as when
2.1 ASTM Standards:
attempting to distinguish between various grades of fuel oil.
E752 Practice for Safety and Health Requirements Relating
4.4 This practice is particularly useful for the extraction of
to Occupational Exposure to Carbon Disulfide
nonporous surfaces such as glass, or the interior of burned
E1387 Test Method for Ignitable Liquid Residues in Ex-
containers. It is also particularly well suited to the extraction of
tracts from Fire Debris Samples by Gas Chromatography
materials from very small samples.
E1412 Practice for Separation of Ignitable Liquid Residues
4.5 This practice can be hampered by coincident extraction
from Fire Debris Samples by Passive Headspace Concen-
of interfering compounds present in the fire debris samples.
tration With Activated Charcoal
4.6 This practice may not be useful for the extraction of
E1459 Guide for Physical Evidence Labeling and Related
some Class 0 and Class 1 ignitable liquids, which may
Documentation
evaporate during the concentration step.
E1492 Practice for Receiving, Documenting, Storing, and
4.7 This is a destructive technique. Whenever possible, this
Retrieving Evidence in a Forensic Science Laboratory
technique should only be used when a representative portion of
thesamplecanbereservedforreanalysis.Thoseportionsofthe
sample subjected to this procedure may not be suitable for
This practice is under the jurisdiction of ASTM Committee E30 on Forensic
resampling.Considerusingpassiveheadspaceconcentrationas
Sciences and is the direct responsibility of E30.01 on Criminalistics.
described in Practice E1412.
Current edition approved April 1, 2005. Published June 2005. Originally
approved in 1990. Last previous edition approved in 2000 as E1386–00. DOI:
5. Reagents and Materials
10.1520/E1386-00R05.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Purity of Reagents—Reagent grade chemicals shall be
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
used in all tests. It is intended that all reagents conform to the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. specifications of the Committee on Analytical Reagents of the
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E1386–00 (2005)
American Chemical Society where such specific
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