ASTM E1412-07
(Practice)Standard Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace Concentration With Activated Charcoal
Standard Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace Concentration With Activated Charcoal
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 1/10 μL of ignitable liquid residue from a sample.
SCOPE
1.1 This practice covers the procedure for removing small quantities of ignitable liquid residue from samples of fire debris using an adsorbent material to extract the residue from the static headspace above the sample, then eluting the adsorbent with a solvent.
1.2 While this practice is suitable for successfully extracting ignitable liquid residues over the entire range of concentration, the headspace concentration methods are best used when a high level of sensitivity is required due to a very low concentration of ignitable liquid residues in the sample.
1.2.1 Unlike other methods of separation and concentration, this practice is essentially nondestructive.
1.3 Alternate separation and concentration procedures are listed in the referenced documents. (see Practices E 1385, E 1386, E 1388, and E 1413).
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.
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Standards Content (Sample)
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Designation:E1412–07
Standard Practice for
Separation of Ignitable Liquid Residues from Fire Debris
Samples by Passive Headspace Concentration With
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Activated Charcoal
This standard is issued under the fixed designation E1412; 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 able Liquid Residues from Fire Debris Samples by Steam
3
Distillation
1.1 This practice covers the procedure for removing small
E1386 Practice for Separation of Ignitable Liquid Residues
quantitiesofignitableliquidresiduefromsamplesoffiredebris
from Fire Debris Samples by Solvent Extraction
using an adsorbent material to extract the residue from the
E1387 Test Method for Ignitable Liquid Residues in Ex-
static headspace above the sample, then eluting the adsorbent
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tracts from Fire Debris Samples by Gas Chromatography
with a solvent.
E1388 Practice for Sampling of Headspace Vapors from
1.2 Whilethispracticeissuitableforsuccessfullyextracting
Fire Debris Samples
ignitable liquid residues over the entire range of concentration,
E1413 Practice for Separation and Concentration of Ignit-
theheadspaceconcentrationmethodsarebestusedwhenahigh
able Liquid Residues from Fire Debris Samples by Dy-
level of sensitivity is required due to a very low concentration
namic Headspace Concentration
of ignitable liquid residues in the sample.
E1459 Guide for Physical Evidence Labeling and Related
1.2.1 Unlike other methods of separation and concentration,
Documentation
this practice is essentially nondestructive.
E1492 Practice for Receiving, Documenting, Storing, and
1.3 Alternate separation and concentration procedures are
Retrieving Evidence in a Forensic Science Laboratory
listed in the referenced documents (see Practices E1385,
E1618 Test Method for Ignitable Liquid Residues in Ex-
E1386, E1388, and E1413).
tracts from Fire Debris Samples by Gas Chromatography-
1.4 This standard does not purport to address all of the
Mass Spectrometry
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
3. Summary of Practice
priate safety and health practices and determine the applica-
3.1 Charcoal in some form of an adsorption package is
bility of regulatory limitations prior to use.
placed in the sample container to adsorb ignitable liquid
2. Referenced Documents residues. The container may be heated or left at ambient
2 temperature. The charcoal is removed and eluted with a
2.1 ASTM Standards:
suitable elution solvent as listed in 6.3.
D1193 Specification for Reagent Water
E752 Practice for Safety and Health Requirements Relating
4. Significance and Use
3
to Occupational Exposure to Carbon Disulfide
4.1 This practice is useful for preparing extracts from fire
E1385 Practice for Separation and Concentration of Ignit-
debris for later analysis by gas chromatography, GC/MS, or
GC/IR.
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4.2 This is a very sensitive separation procedure, capable of
This practice is under the jurisdiction of ASTM Committee E30 on Forensic
1
Sciences and is the direct responsibility of Subcommittee E30.01 on Criminalistics.
isolating quantities smaller than ⁄10 µL of ignitable liquid
Current edition approved April 15, 2007. Published June 2007. Originally
residue from a sample.
approved in 1991. Last previous edition approved in 2005 as E1412 – 05. DOI:
10.1520/E1412-07.
5. Apparatus
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1 Heating System—An oven, or a heating mantle to fit the
Standards volume information, refer to the standard’s Document Summary page on
evidence container (or a hot plate).
the ASTM website.
3 5.1.1 An oven is recommended to achieve a constant
Withdrawn. The last approved version of this historical standard is referenced
on www.astm.org. temperature throughout the system.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1412–07
5.2 Temperature Measuring Device—A thermometer or 7. Sample Preparation/Adsorption Procedure
thermocouple capable of measuring temperatures in the range
7.1 Observe the appropriate procedures for handling and
of 40 to 150°C.
documentation of all submitted samples as described in Prac-
5.3 Adsorption Package.
tice E1492.
5.3.1 Commercial charcoal adsorption packages are avail-
7.1.1 Open and examine the fire debris sample in order to
able from several companies. These packages, in the form of
determine that it is consistent with
...
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