1、Designation:E138817Standard Practice forStatic Headspace Sampling of Vapors from Fire DebrisSamples1This standard is issued under the fixed designation E1388;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A
2、 number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice describes the procedure for removingvapor from the headspace of a fire debris container for thepurpose of detecting or ident
3、ifying ignitable liquid residues.1.2 Separation and concentration procedures are listed in thereferenced documents.(See Practices E1386,E1412,E1413,and E2154.)1.3 This practice offers a set of instructions for performingone or more specific operations.This standard cannot replaceknowledge,skill,or a
4、bility acquired through appropriateeducation,training,and experience and should be used inconjunction with sound professional judgment.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 This standard does not purport to addr
5、ess all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance
6、 with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards
7、:2E1386 Practice for Separation of Ignitable Liquid Residuesfrom Fire Debris Samples by Solvent ExtractionE1412 Practice for Separation of Ignitable Liquid Residuesfrom Fire Debris Samples by Passive Headspace Concen-tration With Activated CharcoalE1413 Practice for Separation of Ignitable Liquid Re
8、siduesfrom Fire Debris Samples by Dynamic Headspace Con-centrationE1459 Guide for Physical Evidence Labeling and RelatedDocumentationE1492 Practice for Receiving,Documenting,Storing,andRetrieving Evidence in a Forensic Science LaboratoryE1618 Test Method for Ignitable Liquid Residues in Extractsfrom
9、 Fire Debris Samples by Gas Chromatography-MassSpectrometryE2154 Practice for Separation and Concentration of Ignit-able Liquid Residues from Fire Debris Samples by Pas-sive Headspace Concentration with Solid Phase Microex-traction(SPME)E2451 Practice for Preserving Ignitable Liquids and Ignit-able
10、Liquid Residue Extracts from Fire Debris Samples3.Summary of Practice3.1 The headspace of an item is sampled,preferably in itsoriginal container,for analysis by an appropriate technique(forexample,gas chromatography-mass spectrometry).The con-tainer may be heated prior to sampling to increase the vo
11、latilityof any ignitable liquid residues.4.Significance and Use4.1 This practice is useful for sampling fire debris to screenfor the presence of ignitable liquid residues prior to extractionwith other techniques.It is most appropriate for sampling lightto medium range ignitable liquids(such as light
12、 oxygenates,lacquer thinners,and other similar volatile compounds orproducts),and less appropriate for sampling ignitable liquidsthat have compounds in the heavy range.3,4,54.1.1 When sampled for screening purposes,the instrumen-tation typically utilized is a gas chromatograph with either a1This pra
13、ctice in under the jurisdiction of ASTM Committee E30 on ForensicSciences and is the direct responsibility of Subcommittee E30.01 on CriminalisticsCurrent edition approved July 15,2017.Published July 2017.Originallyapproved in 1990.Last previous edition approved in 2012 as E1388 12.DOI:10.1520/E1388
14、-17.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Ettling,B.V.,and Adams,M.F.,“The Study of Accelerant Residues
15、 in FireRemains,”Journal of Forensic Sciences,Vol 13,No.1,1968,pp.7689.4Stauffer,E.,Dolan,J.A.,and Newman,R.,Fire Debris Analysis,Boston,MA:Academic Press,2008.5Hinshaw,J.V.,“Headspace Sampling,”LCGC Europe,Vol 24,No.10,2011.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshoh
16、ocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 mass spectrometer(GC-MS,refer to Test Method E1618)orflame ionization detector(GC-FID).4.2 This practice is generally less efficient at recoveringlimit
