Designation:E2573−12AnAmericanNationalStandardStandardPracticeforSpecimenPreparationandMountingofSite-FabricatedStretchSystemstoAssessSurfaceBurningCharacteristics1ThisstandardisissuedunderthefixeddesignationE2573;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesproceduresforspecimenprepa-rationandmountingwhentestingasite-fabricatedstretchsystemtoassessflamespreadandsmokedevelopedassurface-burningcharacteristicsusingTestMethodE84.1.2TestingisconductedwithTestMethodE84.1.3Thispracticedoesnotprovidepass/failcriteriathatcanbeusedasaregulatorytool.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.SeeIEEE/ASTMSI-10forfurtherdetails.1.5Thisfirestandardcannotbeusedtoprovidequantitativemeasures.1.6Firetestingofproductsandmaterialsisinherentlyhazardous,andadequatesafeguardsforpersonnelandpropertyshallbeemployedinconductingthesetests.Firetestinginvolveshazardousmaterials,operations,andequipment.Thisstandardgivesinstructionsonspecimenpreparationandmounting,butthefire-test-responsemethodisgiveninTestMethodE84.SeealsoSection10.1.7Thispracticeshallnotapplytovinylstretchceilingmaterials,whicharecoveredbyPracticeE2599.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.9Thetextofthisstandardreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotesshallnotbeconsideredrequirementsofthestandard.2.ReferencedDocuments2.1ASTMStandards:2E84TestMethodforSurfaceBurningCharacteristicsofBuildingMaterialsE176Ter...