ASTM_G_145_-_08.pdf

Designation:G14508Standard Guide forStudying Fire Incidents in Oxygen Systems1This standard is issued under the fixed designation G145;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A 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 guide covers procedures and material for examin-ing fires in oxygen systems for the purposes of identifyingpotential causes and preventing recurrence.1.2 This guide is not comprehensive.The analysis of oxy-gen fire incidents is not a science,and definitive causes havenot been established for some events.1.3 The procedures and analyses in this guide have beenfound to be useful for interpreting fire events,for helpingidentify potential causes,and for excluding other potentialcauses.The inclusion or omission of any analytical strategy isnot intended to suggest either applicability or inapplicability ofthat method in any actual incident study.NOTE1Although this guide has been found applicable for assistingqualified technical personnel to analyze incidents,each incident is uniqueand must be approached as a unique event.Therefore,the selection ofspecific tactics and the sequence of application of those tactics must beconscious decisions of those studying the event.NOTE2The incident may require the formation of a team to providethe necessary expertise and experience to conduct the study.The personnelanalyzing an incident,or at least one member of the team,should know theprocess under study and the equipment installation.1.4 WarningDuring combustion,gases,vapors,aerosols,fumes,or combinations thereof,are evolved,which may bepresent and may be hazardous to people.Caution Adequateprecautions should be taken to protect those conducting astudy.1.5 This standard does not purport to address 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.2.Referenced Documents2.1 ASTM Standards:2E620 Practice for Reporting Opinions of Scientific or Tech-nical ExpertsE678 Practice for Evaluation of Scientific or Technical DataE860 Practice for Examining And Preparing Items That AreOr May Become Involved In Criminal or Civil LitigationE1020 Practice for Reporting Incidents that May InvolveCriminal or Civil LitigationE1138 Terminology for Technical Aspects of Products Li-ability Litigation(Withdrawn 1995)3E1188 Practice for Collection and Preservation of Informa-tion and Physical Items by a Technical InvestigatorE1459 Guide for Physical Evidence Labeling and RelatedDocumentationE1492 Practice for Receiving,Documenting,Storing,andRetrieving Evidence in a Forensic Science LaboratoryG63 Guide for Evaluating Nonmetallic Materials for Oxy-gen ServiceG88 Guide for Designing Systems for Oxygen ServiceG93 Practice for Cleaning Methods and Cleanliness Levelsfor Material and Equipment Used in Oxygen-EnrichedEnvironmentsG94 Guide for Evaluating Metals for Oxygen ServiceG114 Practices for Evaluating the Age Resistance of Poly-meric Materials Used in Oxygen ServiceG124 Test Method for Determining the Combustion Behav-ior of Metallic Materials in Oxygen-Enriched Atmo-spheresG126 Terminology Relating to the Compatibility and Sensi-tivity of Materials in Oxygen Enriched AtmospheresG128 Guide for Control of Hazards and Risks in OxygenEnriched Systems1This guide is under the jurisdiction ofASTM Committee G04 on Compatibilityand Sensitivity of Materials in Oxygen Enriched Atmospheres and is the directresponsibility of Subcommittee G04.02 on Recommended Practices.Current edition approved Sept.1,2008.Published October 2008.Originallyapproved in 1996.Last previous edition approved in 2001 as G145 96(2001).DOI:10.1520/G0145-08.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.2 Compressed Gas Association(CGA)Standards:4G-4.4 Industrial Practices for Gaseous Oxygen Transmissionand Distribution Piping SystemsG-4.8 Safe Use of Aluminum Structured Packing for Oxy-gen Distillation2.3 National Fire Protection Association(NFPA)Standard:5NFPA 53 Fire Hazards in Oxygen Enriched AtmospheresNFPA 921 Guide for Fire and Explosion Investigations2.4 Occupational Safety and Health Act:6OSHA Process Safety Management Compliance Manual2.5 ASTM Adjuncts:Video:Oxygen Safety73.Terminology3.1 DefinitionsSee Guides G63,G94,and G128 for theterms listed in this section.3.1.1 oxygen compatibility