ASTM_F_1358_-_08.pdf

Designation:F135808Standard Test Method forEffects of Flame Impingement on Materials Used inProtective Clothing Not Designated Primarily for FlameResistance1This standard is issued under the fixed designation F1358;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 establishes a small-scale laboratoryscreening procedure for comparing the ignition resistance andburning characteristics of materials used in protective clothingwhere flame resistance is not the primary form of protectionprovided by the clothing.1.1.1 It is more appropriate to evaluate materials used inapplications where flame resistance is the primary form ofprotection provided by the clothing by other flammability testmethods.This test method shall not be used to evaluatematerials where flame resistance is the primary form ofprotection offered by the protective clothing.1.1.2 This test method provides a means for comparing easeof ignition and burning behavior of materials which includeplastic or elastomeric films,coated fabrics,flexible laminates,multilayer-material systems,or other protective clothing mate-rials that are not designated for offering flame resistance astheir primary form of protection.1.2 This test method measures and describes the response ofmaterials,products,or assemblies to heat and flame undercontrolled conditions,but does not by itself incorporate allfactors required for fire hazard or fire risk assessment of thematerials,products,or assemblies under actual fire conditions.1.3 The values stated in SI units or other units shall beregarded separately.The values stated in each system may notbe exact equivalents;therefore,each system must be usedindependently,without combining values.1.4 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:2D123 Terminology Relating to TextilesD4391 Terminology Relating to The Burning Behavior ofTextilesD4723 Classification Index of and Descriptions of TextileFlammability Test MethodsD6413 Test Method for Flame Resistance of Textiles(Ver-tical Test)F1494 Terminology Relating to Protective Clothing3.Terminology3.1 DefinitionsFor definitions of terms used in this testmethod,related to the combustion of textiles,refer to theterminology contained in Terminology D4391.For definitionsof terms used in this test method,related to protective clothing,refer to the terminology contained in Terminology F1494.Fordefinitions of terms used in this test method,related to textileissues,refer to the terminology contained in TerminologyD123.3.2 afterflame,npersistent flaming of a material after theignition source has been removed.3.3 after-flame time,nthe length of time for which amaterial continues to flame after the ignition source has beenremoved.3.4 afterglow,na glow in a material after the removal ofan external ignition source or after the cessation(natural orinduced)of flaming of the material(see also glow).3.5 anisotropic,adjhaving different values for a specificproperty in different directions.3.5.1 DiscussionWhen this test method is used to evaluatetextile-based materials,this term refers to warp(wale)andfilling(course)directions.When this test method is used fornonwoven materials,this term refers to machine and cross-machine directions.1This test method is under the jurisdiction ofASTM Committee F23 on PersonalProtective Clothing and Equipment and is the direct responsibility of SubcommitteeF23.80 on Flame and Thermal.Current edition approved May 1,2008.Published May 2008.Originallyapproved in 1995.Last previous edition approved in 2005 as F1358-00(2005).DOI:10.1520/F1358-08.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.6 burning behavior,nall the changes that take placewhen materials or products are exposed to a specified ignitionsource.3.7 burn distance,nthe measurement from the bottomedge of the specimen to the farthest point that shows evidenceof damage due to combustion.3.7.1 DiscussionIn evaluating the effects of flame im-pingement of materials used in protective clothing,this mea-surement applies to the folded material specimen when pressedflat and includes all areas partially burned,charred,embrittled,or melted,but not including areas sooted,stained,distorted,ordiscolored.Da