ASTM_D_5025_-_20a.pdf

Designation:D502520aStandard Specification forLaboratory Burner Used for Small-Scale Burning Tests onPlastic Materials1This standard is issued under the fixed designation D5025;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.Scope*1.1 This specification covers the physical dimensions andcharacteristics of a laboratory burner to be used as an ignitionsource for small-scale burning tests on plastic materials.Theburner is used with methane,propane,or butane supply gasesfor flame heights of 20 to 125 mm.1.2 This fire standard cannot be used to provide quantitativemeasures.1.3 The burner described in this specification is suitable foruse in the followingASTM standards:Specification C509,TestMethod D229,Test Method D635,Test Method D876,TestMethod D3014,Test Method D3801,Test Method D4804,TestMethod D4986,and Test Method D5048.Safety hazards andknown limitations on applicability of fire-test-response stan-dards are addressed in the individual test methods.NOTE1This specification is equivalent to the ignition source specifiedin IEC 60695-11-3,Annex A and IEC 60695-11-4,Annex A.NOTE2This specification is equivalent to the P/PF2 ignition sourcespecified in ISO 10093.1.4 This international standard was developed in accor-dance 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:2C509 Specification for Elastomeric Cellular Preformed Gas-ket and Sealing MaterialD229 Test Methods for Rigid Sheet and Plate MaterialsUsed for Electrical InsulationD635 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD876 Test Methods for Nonrigid Vinyl Chloride PolymerTubing Used for Electrical InsulationD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3014 Test Method for Flame Height,Time of Burning,andLoss of Mass of Rigid Thermoset Cellular Plastics in aVertical PositionD3801 Test Method for Measuring the Comparative BurningCharacteristics of Solid Plastics in a Vertical PositionD4804 Test Method for Determining the Flammability Char-acteristics of Nonrigid Solid PlasticsD4986 Test Method for Horizontal Burning Characteristicsof Cellular Polymeric MaterialsD5048 Test Method for Measuring the Comparative BurningCharacteristics and Resistance to Burn-Through of SolidPlastics Using a 125-mm FlameD5207 Practice for Confirmation of 20mm(50W)and125mm(500W)Test Flames for Small-Scale BurningTests on Plastic MaterialsE176 Terminology of Fire Standards2.2 ISO Standards:3ISO 10093 PlasticsFire TestsStandard Ignition SourcesISO 13943 Fire SafetyVocabulary2.3 IEC Standards:3IEC 60695-11-3 Fire Hazard TestingPart 11-3:TestFlames50W FlamesApparatus and ConfirmationalTest MethodsIEC 60695-11-4 Fire Hazard TestingPart 11-4:TestFlames500W FlamesApparatus and ConfirmationalTest Methods3.Terminology3.1 DefinitionsFor terms relating to plastics,the defini-tions are in accordance with Terminology D883,and theabbreviations are in accordance with Terminology D1600.Forterms relating to fire,the definitions in this specification are in1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.30 on ThermalProperties.Current edition approved March 1,2020.Published April 2020.Originallyapproved in 1989.Last previous edition approved in 2020 as D5025-20.DOI:10.1520/D5025-20A.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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,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.accordance with Terminology E176 and ISO 13943.In case ofconflict,the definitions given in Terminology E176 shallprevail.4.Design4.1 The burner shall consist of a barrel that threads onto aone-piece base and gas inlet,as shown in Fig.1.Thecomponents shall be constructed of metal,typically of brass oraluminum.4.