ASTM E2154-15
(Practice)Standard Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace Concentration with Solid Phase Microextraction (SPME)
Standard Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace Concentration with Solid Phase Microextraction (SPME)
SIGNIFICANCE AND USE
4.1 This practice is suited ideally for screening samples for the presence, relative concentration, and potential class of ignitable liquid residues in fire debris.
4.2 This is a very sensitive separation procedure, capable of isolating small quantities of ignitable liquid residues from a sample, that is, a 0.1 μL spike of gasoline on a cellulose wipe inside of a 1-gal can is detectable.
4.3 Actual recovery will vary, depending on several factors, including adsorption temperature, container size, competition from the sample matrix, ignitable liquid class and relative ignitable liquid concentration.
4.4 Because this separation takes place in a closed container, the sample remains in approximately the same condition in which it was submitted. Repeat and interlaboratory analyses, therefore, may be possible. Since the extraction is nonexhaustive, the technique permits reanalysis of samples.
4.5 This practice is intended for use in conjunction with other extraction techniques described in Practices E1386, E1388, E1412, and E1413.
4.6 The extract is consumed in the analysis. If a more permanent extract is desired, one of the separation practices described in Practices E1386, E1412, or E1413 should be used.
SCOPE
1.1 This practice describes the procedure for removing small quantities of ignitable liquid residues from samples of fire debris. An adsorbent material is used to extract the residue from the static headspace above the sample. Then, analytes are thermally desorbed in the injection port of the gas chromatograph (GC).
1.2 This practice is best suited for screening fire debris samples to assess relative ignitable liquid concentration and for extracting ignitable liquid from aqueous samples.
1.3 This practice is suitable for extracting ignitable liquid residues when a high level of sensitivity is required due to a very low concentration of ignitable liquid residues in the sample.
1.3.1 Unlike other methods of separation and concentration, this method recovers a minimal amount of the ignitable residues present in the evidence, leaving residues that are suitable for subsequent resampling.
1.4 Alternate separation and concentration procedures are listed in Section 2.
1.5 This standard cannot replace knowledge, skill, or ability acquired through appropriate education, training, and experience and should be used in conjunction with sound professional judgment.
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.
General Information
Relations
Buy Standard
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E2154 − 15
StandardPractice for
Separation and Concentration of Ignitable Liquid Residues
from Fire Debris Samples by Passive Headspace
1
Concentration with Solid Phase Microextraction (SPME)
This standard is issued under the fixed designation E2154; 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 2. Referenced Documents
2
1.1 This practice describes the procedure for removing 2.1 ASTM Standards:
small quantities of ignitable liquid residues from samples of E1386 Practice for Separation of Ignitable Liquid Residues
fire debris.An adsorbent material is used to extract the residue from Fire Debris Samples by Solvent Extraction
from the static headspace above the sample. Then, analytes are E1388 Practice for Sampling of HeadspaceVapors from Fire
thermally desorbed in the injection port of the gas chromato- Debris Samples
graph (GC). E1412 Practice for Separation of Ignitable Liquid Residues
from Fire Debris Samples by Passive Headspace Concen-
1.2 This practice is best suited for screening fire debris
tration With Activated Charcoal
samples to assess relative ignitable liquid concentration and for
E1413 Practice for Separation of Ignitable Liquid Residues
extracting ignitable liquid from aqueous samples.
from Fire Debris Samples by Dynamic Headspace Con-
1.3 This practice is suitable for extracting ignitable liquid
centration
residues when a high level of sensitivity is required due to a
E1492 Practice for Receiving, Documenting, Storing, and
very low concentration of ignitable liquid residues in the
Retrieving Evidence in a Forensic Science Laboratory
sample.
E1618 TestMethodforIgnitableLiquidResiduesinExtracts
1.3.1 Unlike other methods of separation and concentration,
from Fire Debris Samples by Gas Chromatography-Mass
this method recovers a minimal amount of the ignitable
Spectrometry
residues present in the evidence, leaving residues that are
3. Summary of Practice
suitable for subsequent resampling.
3.1 A fiber coated with a polydimethylsiloxane stationary
1.4 Alternate separation and concentration procedures are
phase is exposed to the headspace of the fire debris sample
listed in Section 2.
container to extract ignitable liquid residues. The fiber, which
1.5 This standard cannot replace knowledge, skill, or ability
is housed in a needle similar to a syringe needle, is introduced
acquired through appropriate education, training, and experi-
directly in the injection port of a gas chromatograph to
ence and should be used in conjunction with sound profes-
thermally desorb the analytes.
sional judgment.
4. Significance and Use
1.6 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 This practice is suited ideally for screening samples for
responsibility of the user of this standard to establish appro-
the presence, relative concentration, and potential class of
priate safety and health practices and determine the applica-
ignitable liquid residues in fire debris.
bility of regulatory limitations prior to use.
4.2 This is a very sensitive separation procedure, capable of
isolating small quantities of ignitable liquid residues from a
1
This practice is under the jurisdiction of ASTM Committee E30 on Forensic
2
Sciences and is the direct responsibility of Subcommittee E30.01 on Criminalistics. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2015. Published April 2015. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2001. Last previous edition approved in 2008 as E2154 – 01 (2008). Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/E2154-15. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E2154 − 15
sample, that is, a 0.1 µL spike of gasoline on a cellulose wipe 6.2.1 Perform batch runs of fiber blanks in advance when
inside of a 1-gal can is detectable. necessary for autosampler apparatus.
4.3 Actual recovery will vary, depending on several factors,
6.3 If the sample container has a metal lid, make a hole in
including adsorption temperature, container size, competition
the lid and install a rubber sleeve septum in the opening.
from the sample matrix, ignitable liquid class and relative
6.4 Heat the container until the sample reaches the desired
ignitable liquid concentration.
temperature (approximately 20-30 min, but longer equilibra
...
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: E2154 − 01 (Reapproved 2008) E2154 − 15
Standard Practice for
Separation and Concentration of Ignitable Liquid Residues
from Fire Debris Samples by Passive Headspace
1
Concentration with Solid Phase Microextraction (SPME)
This standard is issued under the fixed designation E2154; 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 describes the procedure for removing small quantities of ignitable liquid residues from samples of fire debris.
An adsorbent material is used to extract the residue from the static headspace above the sample. Then, analytes are thermally
desorbed in the injection port of the gas chromatograph (GC).
1.2 This practice is best suited for screening fire debris samples to assess relative ignitable liquid concentration and for
extracting ignitable liquid from aqueous samples.
1.3 This practice is suitable for extracting ignitable liquid residues when a high level of sensitivity is required due to a very low
concentration of ignitable liquid residues in the sample.
1.3.1 Unlike other methods of separation and concentration, this method recovers a minimal amount of the ignitable residues
present in the evidence, leaving residues that are suitable for subsequent resampling.
1.4 Alternate separation and concentration procedures are listed in Section 2.
1.5 This standard cannot replace knowledge, skill, or ability acquired through appropriate education, training, and experience
and should be used in conjunction with sound professional judgment.
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:
E1385 Practice for Separation and Concentration of Ignitable Liquid Residues from Fire Debris Samples by Steam Distillation
3
(Withdrawn 2008)
E1386 Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Solvent Extraction
E1387 Test Method for Ignitable Liquid Residues in Extracts from Fire Debris Samples by Gas Chromatography (Withdrawn
3
2010)
E1388 Practice for Sampling of Headspace Vapors from Fire Debris Samples
E1412 Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Passive Headspace Concentration With
Activated Charcoal
E1413 Practice for Separation of Ignitable Liquid Residues from Fire Debris Samples by Dynamic Headspace Concentration
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
Spectrometry
3. Summary of Practice
3.1 A fiber coated with a polydimethylsiloxane stationary phase is exposed to the headspace of the fire debris sample container
to extract ignitable liquid residues. The fiber, which is housed in a needle similar to a syringe needle, is introduced directly in the
injection port of a gas chromatograph to thermally desorb the analytes.
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.
Current edition approved Feb. 1, 2008March 1, 2015. Published April 2008April 2015. Originally approved in 2001. Last previous edition approved in 20012008 as
E2154 – 01.E2154 – 01 (2008). DOI: 10.1520/E2154-01R08.10.1520/E2154-15.
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 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 ----------------------
E2154 − 15
4. Significance and Use
4.1 This practice is suited ideally for screening samples for the presence, relative concentration, and potential class of ignitable
liquid residues in fire debris.
4.2 This is a very sensitive separation procedure, capable of isolating small quantities of ignitable liquid residues from a sample,
that is,
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.