ASTM_D_5132_-_11.pdf

Designation:D513211Standard Test Method forHorizontal Burning Rate of Polymeric Materials Used inOccupant Compartments of Motor Vehicles1This standard is issued under the fixed designation D5132;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 test method is intended for use as a small-scalelaboratory procedure for comparing the relative horizontalburning rates of polymeric materials used in occupant com-partments of motor vehicles.1.2 UnitsThe values stated in SI units are to be regardedas standard.1.3 This test method,Federal Safety Standard MVSS 302,SAE J369,and ISO 3795 address the same subject matter,butdiffer in technical content.1.4 This standard is used to measure and describe theresponse of materials,products,or assemblies to heat and flameunder controlled conditions,but does not by itself incorporateall factors required for fire hazards or fire risk assessment ofmaterials,products,or assemblies under actual fire conditions.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.Specific hazardstatements are given in Section 7.1.6 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.NOTE1This standard and ISO 3795 address the same subject matter,but differ in technical content.2.Referenced Documents2.1 ASTM Standards:2D5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic MaterialsE176 Terminology of Fire StandardsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method2.2 Federal Safety Standard:MVSS 302(49 CFR 571.302)Flammability of InteriorMaterials-PassengerCars,MultipurposePassengerVehicles,Trucks and Buses32.3 SAE Standard:SAE J369 Flammability of Polymeric Interior Materials-Horizontal Test Method42.4 ISO Standard:ISO 3795 Road vehicles,and tractors and machinery foragriculture and forestryDetermination of burning be-havior of interior materials53.Terminology3.1 DefinitionsFor definitions of fire-related terms used inthis test method,refer to Terminology E176.4.Summary of Test Method4.1 This test method employs a standard test specimen(100by 356 mm)with a thickness up to 13 mm,mounted in aU-shaped metal frame.The specimen is ignited by means of a38 mm high flame from an appropriate burner,and the burningrate of the material is determined.4.2 The rate of burning is determined by measurements ofthe horizontal distance burned in relation to the time ofburning,and reported for each set of specimens.5.Significance and Use5.1 This test method provides a standard laboratory proce-dure for measuring and comparing the burning rates ofpolymeric materials under specified controlled conditions.5.2 The rate of burning is affected by such factors as density,direction of rise,and type and amount of surface treatments.The thickness of the finished specimens must also be taken into1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.30 on Thermal Properties.Current edition approved Feb.1,2011.Published February 2011.Originallyapproved in 1990.Last previous edition approved in 2004 as D5132 04.DOI:10.1520/D5132-11.2For 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.3United States Code of Federal Regulations,49 CFR 571.302,36 FR 28991,available from Superintendent of Documents,U.S.Government Printing Office,Washington,DC 20402.4Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001.5Available from International Organization for Standardization(ISO),1 rue deVaremb,Case postale 56,CH-1211,Geneva 20,Switzerland.*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 States1 account.These factors must be considered in order to comparematerials on the same basis.5.3 In this procedure,the specimens are subjected to one ormore specific sets of laboratory test conditions.If different testconditions are substituted or the end-use conditions arechanged,it is not always possible by or from this test methodto predict changes in the fire-test-response characteristicsmeasured.Therefore,the results are valid only for the fire testexposure conditions described in this procedure.6.Apparatus6.1 The ap