ASTM_D_6413_-_D_6413M_-_22.pdf

Designation:D6413/D6413M22Standard Test Method forFlame Resistance of Textiles(Vertical Test)1This standard is issued under the fixed designation D6413/D6413M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method is used to measure the vertical flameresistance of textiles.1.1.1 As a part of the measure of flame resistance,after-flame and afterglow characteristics are evaluated.1.2 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 hazard or fire risk assessment of thematerials,products,or assemblies under actual fire conditions.1.3 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 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:2D123 Terminology Relating to TextilesD1776 Practice for Conditioning and Testing TextilesD3776/D3776M Test Methods for Mass Per Unit Area(Weight)of FabricD4391 Terminology Relating to The Burning Behavior ofTextilesE176 Terminology of Fire Standards2.2 ISO Standard3ISO 13943 Fire safety3.Terminology3.1 char lengthin measuring flame resistance of textiles,the distance from the fabric edge,which is directly exposed tothe flame to the furthest point of visible fabric damage after aspecified tearing force has been applied.3.2 The following terms are relevant to this standard:afterflame,after-flame time,afterglow time,flame applicationtime,melting.3.3 For terms related to the burning behavior of textiles,seeTerminology D4391.3.4 For terminology related to fire issues other than burningbehavior of textiles,see Terminology E176 and ISO 13943.Incase of conflict,the terminology in E176 will prevail.3.5 For other terms related to textiles,see TerminologyD123.4.Summary of Test Method4.1 A specimen is positioned vertically above a controlledflame and exposed for a specified period of time.The flamethen is removed,and afterflame time and afterglow time aremeasured.4.2 Char length is measured under a specified force.4.3 Any evidence of melting or dripping is noted.5.Significance and Use5.1 This test method determines the response of textiles to astandard ignition source,deriving measurement values forafterflame time,afterglow time,and char length.1This test method is under the jurisdiction ofASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.52 on Flammability.Current edition approved Aug.15,2022.Published November 2022.Originallyapproved in 1999.Last previous edition approved in 2015 as D6413/D6413M 15.DOI:10.1520/D6413_D6413M-22.2For 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 International Organization for Standardization(ISO),ISOCentral Secretariat,Chemin de Blandonnet 8,CP 401,1214 Vernier,Geneva,Switzerland,https:/www.iso.org.Copyright 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.15.2 The vertical flame resistance,as determined by this testmethod,only relates to a specified flame exposure and appli-cation time.5.3 This test method maintains the specimen in a static,draft-free,vertical position and does not involve movementexcept that resulting from the exposure.5.4 Test Method D6413 has been adopted from Federal Te