ASTM E1412-00

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Designation:E1412–00
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 E 1412; 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.
1. Scope E 1387 Test Method for Ignitable Liquid Residues in Ex-
tracts from Samples of Fire Debris by Gas Chromatogra-
1.1 This practice covers the procedure for removing small
4
phy
quantitiesofignitableliquidresiduefromsamplesoffiredebris
E 1388 Practice for Sampling of Headspace Vapors from
using an adsorbent material to extract the residue from the
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Fire Debris Samples
static headspace above the sample, then eluting the adsorbent
E 1413 Practice for Separation and Concentration of Ignit-
with a solvent.
able Liquid Residues from Fire Debris Samples by Dy-
1.2 Whilethispracticeissuitableforsuccessfullyextracting
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namic Headspace Concentration
ignitable liquid residues over the entire range of concentration,
E 1459 Guide for Physical Evidence Labeling and Related
theheadspaceconcentrationmethodsarebestusedwhenahigh
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Documentation
level of sensitivity is required due to a very low concentration
E 1492 Practice for Receiving, Documenting, Storing, and
of ignitable liquid residues in the sample.
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Retrieving Evidence in a Forensic Science Laboratory
1.2.1 Unlike other methods of separation and concentration,
E 1618 Guide for Ignitable Liquid Residues in Extracts
this practice is essentially nondestructive.
from Fire Debris Samples by Gas Chromatography-Mass
1.3 Alternate separation and concentration procedures are
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Spectrometry
listed in the referenced documents. (see Practices).
1.4 This standard does not purport to address all of the
3. Summary of Practice
safety concerns, if any, associated with its use. It is the
3.1 Charcoal in some form of an adsorption package is
responsibility of the user of this standard to establish appro-
placed in the sample container to adsorb ignitable liquid
priate safety and health practices and determine the applica-
residues. The container may be heated or left at ambient
bility of regulatory limitations prior to use.
temperature. The charcoal is removed and eluted with CS or
2
2. Referenced Documents diethyl ether.
2.1 ASTM Standards:
4. Significance and Use
2
D 1193 Specification for Reagent Water
4.1 This practice is useful for preparing extracts from fire
E 752 PracticeforSafetyandHealthRequirementsRelating
3 debris for later analysis by gas chromatography, GC/MS, or
to Occupational Exposure to Carbon Disulfide
GC/IR.
E 1385 Practice for Separation and Concentration of Ignit-
4.2 This is a very sensitive separation procedure, capable of
able Liquid Residues from Fire Debris Samples by Steam
1
4 isolating quantities smaller than ⁄10 µL of ignitable liquid
Distillation
residue from a sample.
E 1386 Practice for Separation and Concentration of Ignit-
able Liquid Residues from Fire Debris Samples by Solvent
5. Apparatus
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Extraction
5.1 Heating System—An oven, or a heating mantle to fit the
evidence container (or a hot plate).
1 5.1.1 An oven is recommended to achieve a constant
This practice is under the jurisdiction of ASTM Committee E30 on Forensic
temperature throughout the system.
Sciences and is the direct responsibility of Subcommittee E30.01 on Criminalistics.
Current edition approved Nov. 10, 2000. Published January 2001. Originally
5.2 Temperature Measuring Device—A thermometer or
published as E 1412 – 91. Last previous edition E 1412 – 95.
thermocouple capable of measuring temperatures in the range
2
Annual Book of ASTM Standards, Vol 11.01.
3 of 40 to 150°C.
Annual Book of ASTM Standards, Vol 11.03.
4
Annual Book of ASTM Standards, Vol 13.01. 5.3 Adsorption Package.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E1412
5.3.1 Commercial charcoal adsorption packages are avail- 7.1.1.1 Resolve any discrepancies between the submitting
able from several companies. These packages, in the form of agent’s description of the evidence and the analyst’s observa-
polymerstripsorsmallcharcoalcanistersor“Cbags,”areused tion with the submitting agent prior to the completion of the
to adsorp organic vapors. report.
5.3.1.1 Theminimumrecommendedpolymerstripsizeis10
7.2 Removeanadsorbentpackagefromitssealedpackaging
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mm by 10 mm, or 100 mm .
and place it in the evidence container, then reseal the container.
5.3.2 Non-Commercial Adsorption Packages.
7.3 Heat the container t
...