ASTM E1386-00

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Designation:E1386–00
Standard Practice for
Separation and Concentration of Ignitable Liquid Residues
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from Fire Debris Samples by Solvent Extraction
This standard is issued under the fixed designation E 1386; 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 (e) indicates an editorial change since the last revision or reapproval.
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1. Scope namic Headspace Concentration
E 1459 Guide for Physical Evidence Labeling and Related
1.1 This practice covers the procedure for removing small
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Documentation
quantities of flammable or combustible liquid residue from
E 1492 Practice for Receiving, Documenting, Storing, and
samples of fire debris using solvent to extract the residue.
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Retrieving Evidence in a Forensic Science Laboratory
1.2 This practice is suitable for successfully extracting
E 1618 Guide for Ignitable Liquid Residues in Extracts
flammable or combustible liquid residues over the entire range
from Fire Debris Samples by Gas Chromatography-Mass
of concentrations.
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Spectrometry
1.3 Alternate separation and concentration procedures are
listed in Test Method E 1387.
3. Summary of Practice
1.4 This standard does not purport to address all of the
3.1 A sample of fire debris is extracted with an organic
safety concerns, if any, associated with its use. It is the
solvent. The extract is filtered and concentrated using dry
responsibility of the user of this standard to establish appro-
nitrogen, filtered air, or inert gas.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. For a specific
4. Significance and Use
hazard statement, see Note 1.
4.1 This practice is useful for preparing extracts from fire
2. Referenced Documents debris for later analysis by gas chromatography, GC/MS, or
GC/IR.
2.1 ASTM Standards:
4.2 This is a very sensitive separation procedure, capable of
E 752 PracticeforSafetyandHealthRequirementsRelating
2 isolatingquantitiessmallerthan1µLofignitableliquidresidue
to Occupational Exposure to Carbon Disulfide
from a sample.
E 1385 Practice for Separation and Concentration of Ignit-
4.3 Thispracticeisparticularlyusefulwhenthepotentialfor
able Liquid Residues from Fire Debris Samples by Steam
3 fractionation during separation must be reduced, as when
Distillation
attempting to distinguish between various grades of fuel oil.
E 1387 Test Method for Ignitable Liquid Residues in Ex-
4.4 This practice is particularly useful for the extraction of
tracts from Samples of Fire Debris by Gas Chromatogra-
3 nonporous surfaces such as glass, or the interior of burned
phy
containers. It is also particularly well suited to the extraction of
E 1388 Practice for Sampling Headspace Vapors from Fire
3 materials from very small samples.
Debris Samples
4.5 This practice can be hampered by coincident extraction
E 1412 Practice for Separation and Concentration of Ignit-
of interfering compounds present in the fire debris samples.
able Liquid Residues from Fire Debris Samples by Passive
3 4.6 This practice may not be useful for the extraction of
Headspace Concentration
some Class 0 and Class 1 ignitable liquids, which may
E 1413 Practice for Separation and Concentration of Ignit-
evaporate during the concentration step.
able Liquid Residues from Fire Debris Samples by Dy-
4.7 This is a destructive technique. Whenever possible, this
technique should only be used when a representative portion of
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This practice is under the jurisdiction of ASTM Committee E30 on Forensic thesamplecanbereservedforreanalysis.Thoseportionsofthe
Sciences and is the direct responsibility of E30.01 on Criminalistics.
sample subjected to this procedure may not be suitable for
Current edition approved Dec. 10, 2000. Published February 2001. Originally
resampling.Considerusingpassiveheadspaceconcentrationas
published as E 1386–90. Last previous edition E 1386–95.
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described in Practice E 1412.
Annual Book of ASTM Standards,Vol 11.03.
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Annual Book of ASTM Standards, Vol 14.02.
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E1386
5. Reagents and Materials 6.1.1 Open and examine the fire debris sample in order to
determine that it is consistent with its description.
5.1 Purity of Reagents—Reagent grade chemicals shall be
6.1.1.1 Resolve any discrepancies between the submitting
used in all tests. It is intended that all reagents conform to the
agent’s description of the evidence and the analysts observa-
specifications of the Committee on Analytical Reagents of the
tion with the submitting agent prior to the completion of the
American Chemica
...