1、Designation:G9405(Reapproved 2014)Standard Guide forEvaluating Metals for Oxygen Service1This standard is issued under the fixed designation G94;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in par
2、entheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide applies to metallic materials under consider-ation for oxygen or oxygen-enriched fluid service,direct orindirect,as defined in Section 3.It is
3、 concerned primarily withthe properties of a metallic material associated with its relativesusceptibility to ignition and propagation of combustion.Itdoes not involve mechanical properties,potential toxicity,outgassing,reactions between various materials in the system,functional reliability,or perfo
4、rmance characteristics such asaging,shredding,or sloughing of particles,except when thesemight contribute to an ignition.1.2 This document applies only to metals;nonmetals arecovered in Guide G63.NOTE1The American Society for Testing and Materials takes noposition respecting the validity of any eval
5、uation methods asserted inconnection with any item mentioned in this guide.Users of this guide areexpressly advised that determination of the validity of any such evaluationmethods and data and the risk of use of such evaluation methods and dataare entirely their own responsibility.NOTE2In evaluatin
6、g materials,any mixture with oxygen exceedingatmospheric concentration at pressures higher than atmospheric should beevaluated from the hazard point of view for possible significant increasein material combustibility.1.3 The values stated in SI units are to be regarded as thestandard.1.4 This standa
7、rd 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 St
8、andards:2D2512 Test Method for Compatibility of Materials withLiquid Oxygen(Impact Sensitivity Threshold and Pass-Fail Techniques)D2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxygen Index)D4809 Test Method for Heat of Combustion of Liqu
9、idHydrocarbon Fuels by Bomb Calorimeter(PrecisionMethod)G63 Guide for Evaluating Nonmetallic Materials for Oxy-gen ServiceG72 Test Method for Autogenous Ignition Temperature ofLiquids and Solids in a High-Pressure Oxygen-EnrichedEnvironmentG86 Test Method for Determining Ignition Sensitivity ofMater
10、ials to Mechanical Impact in Ambient Liquid Oxy-gen and Pressurized Liquid and Gaseous Oxygen Envi-ronmentsG88 Guide for Designing Systems for Oxygen ServiceG93 Practice for Cleaning Methods and Cleanliness Levelsfor Material and Equipment Used in Oxygen-EnrichedEnvironmentsG124 Test Method for Dete
11、rmining 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 Systems2.2 ASTM Special Technical Publication
12、s(STPs)on theFlammability and Sensitivity of Materials in Oxygen-EnrichedAtmospheres:ASTM STPs in this category are listed as:812,910,986,1040,1111,1167,1197,1319,1395,and 14542.3 Compressed Gas Association Documents:Pamphlet G-4.4-2003(EIGA Doc.13/02)Oxygen PipelineSystems3Pamphlet G-4.8 Safe Use o
13、f Aluminum Structured Packingfor Oxygen Distillation3Pamphlet G-4.9 Safe Use of Brazed Aluminum Heat Ex-changers for Producing Pressurized Oxygen31This guide is under the jurisdiction ofASTM Committee G04 on Compatibilityand Sensitivity of Materials in Oxygen Enriched Atmospheres and is the directre
14、sponsibility of Subcommittee G04.02 on Recommended Practices.Current edition approved Jan.1,2014.Published January 2014.Originallyapproved in 1987.Last previous edition approved in 2005 as G94 05.DOI:10.1520/G0094-05R14.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact AST
15、M Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from Compressed Gas Association(CGA),4221 Walney Rd.,5thFloor,Chantilly,VA 20151-2923,http:/.Copyright ASTM International,100 Barr Harb
16、or Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Pamphlet P-8.4(EIGA Doc.65/99)Safe Operation of Re-boilers Condensers in Air Separation Plants32.4 ASTM Adjuncts:Test Program Report on the Ignition and Combustion ofMaterials in High-Pressure Oxygen43.Terminology3.1 Definitions:3.1.1 autoignition temperaturethe lowest temperature atwhich a material will spontaneously ignite in oxygen underspecific test conditions(see Guide G126).3.1.2 direct oxygen servicein contact with oxygen
