ASTM E1412-12
(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 mass spectrometry.
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 describes the procedure for separation of small quantities of ignitable liquid residues 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 E1386, E1388, E1413, and E2154).
1.4 This practice does not replace knowledge, skill, ability, experience, education, or training and should be used in conjunction with professional judgment.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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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Designation: E1412 − 12
StandardPractice for
Separation of Ignitable Liquid Residues from Fire Debris
Samples by Passive Headspace Concentration With
1
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 E1386 Practice for Separation of Ignitable Liquid Residues
from Fire Debris Samples by Solvent Extraction
1.1 This practice describes the procedure for separation of
E1388 Practice for Sampling of HeadspaceVapors from Fire
small quantities of ignitable liquid residues from samples of
Debris Samples
fire debris using an adsorbent material to extract the residue
E1413 Practice for Separation and Concentration of Ignit-
from the static headspace above the sample, then eluting the
able Liquid Residues from Fire Debris Samples by Dy-
adsorbent with a solvent.
namic Headspace Concentration
1.2 While this practice is suitable for successfully extracting
E1459 Guide for Physical Evidence Labeling and Related
ignitable liquid residues over the entire range of concentration,
Documentation
theheadspaceconcentrationmethodsarebestusedwhenahigh
E1492 Practice for Receiving, Documenting, Storing, and
level of sensitivity is required due to a very low concentration
Retrieving Evidence in a Forensic Science Laboratory
of ignitable liquid residues in the sample.
E1618 TestMethodforIgnitableLiquidResiduesinExtracts
1.2.1 Unlike other methods of separation and concentration,
from Fire Debris Samples by Gas Chromatography-Mass
this practice is essentially nondestructive.
Spectrometry
1.3 Alternate separation and concentration procedures are E2154 Practice for Separation and Concentration of Ignit-
able Liquid Residues from Fire Debris Samples by Pas-
listed in the referenced documents (see Practices E1386,
E1388, E1413, and E2154). sive Headspace Concentration with Solid Phase Microex-
traction (SPME)
1.4 This practice does not replace knowledge, skill, ability,
E2451 Practice for Preserving Ignitable Liquids and Ignit-
experience, education, or training and should be used in
able Liquid Residue Extracts from Fire Debris Samples
conjunction with professional judgment.
1.5 The values stated in SI units are to be regarded as 3. Summary of Practice
standard. No other units of measurement are included in this
3.1 Charcoal in some form of an adsorption package is
standard.
placed in the sample container to adsorb ignitable liquid
1.6 This standard does not purport to address all of the
residues. The container may be heated or left at ambient
safety concerns, if any, associated with its use. It is the
temperature. The charcoal is removed and eluted with a
responsibility of the user of this standard to establish appro-
suitable elution solvent as listed in 6.3.
priate safety and health practices and determine the applica-
4. Significance and Use
bility of regulatory limitations prior to use.
4.1 This practice is useful for preparing extracts from fire
2. Referenced Documents
debris for later analysis by gas chromatography mass spec-
2
trometry.
2.1 ASTM Standards:
4.2 This is a very sensitive separation procedure, capable of
1
isolating quantities smaller than ⁄10 µL of ignitable liquid
1
This practice is under the jurisdiction of ASTM Committee E30 on Forensic
residue from a sample.
Sciences and is the direct responsibility of Subcommittee E30.01 on Criminalistics.
CurrenteditionapprovedJune1,2012.PublishedJuly2012.Originallyapproved
5. Apparatus
in 1991. Last previous edition approved in 2007 as E1412 – 07. DOI: 10.1520/
E1412-12.
5.1 Heating System—An oven, or a heating mantle to fit the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
evidence container (or a hot plate).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.1.1 An oven is recommended to achieve a constant
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. temperature throughout the system.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1412 − 12
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-
tice E1492.
5.3 Adsorption Package.
7.1.1 Open and examine the fire debris sample in order to
5.3.1 Commercial charcoal adsorption pack
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E1412–07 Designation:E1412–12
Standard Practice for
Separation of Ignitable Liquid Residues from Fire Debris
Samples by Passive Headspace Concentration With
1
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
1.1 This practice coversdescribes the procedure for removing separation of small quantities of ignitable liquid residues 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 E1385, E1386,
E1388, and , E1413, and E2154).
1.4
1.4 This practice does not replace knowledge, skill, ability, experience, education, or training and should be used in conjunction
with professional judgment.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 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.
2. Referenced Documents
2
2.1 ASTM Standards: D1193Specification for Reagent Water
E752Practice for Safety and Health Requirements Relating to Occupational Exposure to Carbon Disulfide
E1385Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Steam Distillation
E1386 Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Solvent Extraction E1387Test Method
for Ignitable
Liquid Resi-
dues in Ex-
tracts from
Fire Debris
Samples by
Gas Chroma-
tography
E1388 Practice for Sampling of Headspace Vapors from Fire Debris Samples
E1413 Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Dynamic
Headspace Concentration
E1459 Guide for Physical Evidence Labeling and Related Documentation
E1492 Practice for Receiving, Documenting, Storing, and Retrieving Evidence in a Forensic Science Laboratory
E1618 Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass
1
This practice is under the jurisdiction of ASTM Committee E30 on Forensic Sciences and is the direct responsibility of Subcommittee E30.01 on Criminalistics.
CurrenteditionapprovedApril15,2007.PublishedJune2007.Originallyapprovedin1991.Lastpreviouseditionapprovedin2005asE1412–05.DOI:10.1520/E1412-07.
Current edition approved June 1, 2012. Published July 2012. Originally approved in 1991. Last previous edition approved in 2007 as E1412 – 07. DOI: 10.1520/E1412-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E1412–12
Spectrometry Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography-Mass
Spectrometry
E2154 Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace
Concentration with Solid Phase Microextraction (SPME)
E2451 Practice for Preserving Ignitable Liquids and Ignitable Liquid Residue Extracts from Fire Debris Samples
3. Summary of Practice
3.1 Charcoal in some form of an adsorption package is placed in the sample container to adsorb ignitable liquid residues. The
container may be heated or left at ambient temperature.The charcoal is removed and e
...
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