Designation:F2621/F2621M−19StandardPracticeforDeterminingResponseCharacteristicsandDesignIntegrityofArcRatedFinishedProductsandEvaluatingotherProductsinanElectricArcExposure1ThisstandardisissuedunderthefixeddesignationF2621/F2621M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeidentifiesprotocolsforuseinconductingarctestingonfinishedproductsintendedforuseasthermalprotectionbyworkerswhomaybeexposedtoelectricarchazards.1.1.1Thepracticeisalsousedforothercomponentswhichcanbeexposedtoelectricarc,butwhichdonotrequireanarcrating.1.1.1.1Ifitemsaretestedandtheydonotmeettheappro-priatestandard,itistheresponsibilityofthespecimensubmit-tertoprovidethisinformationforindicationinthetestreport.1.2ArcRatedprotectiveitemsaretypicallytestedusingthispracticetoevaluatetheperformanceoftheinterfaceareabetweentheproductandtheotherarcflashPPEortoevaluatezippersandotherfindings.1.3WhenevaluatingarcratedPPEwithnon-arcratedPPEforduediligence(suchasrespirators,etc.),thispracticedoesnotresultinanarcratingandnon-arcratedcomponentsorproductsshallbeclearlyindicatedashavingnoarcrating.1.4Thispracticeisnotintendedtoproduceanarcratinganddoesnotreplicateinalltypesofarcexposures.1.5Thispracticeisusedwiththefollowingstandards:1.5.1ProtectivefabricmaterialsreceivearcratingsfromTestMethodF1959/F1959M.1.5.2FaceprotectiveproductsreceivearcratingsfromTestMethodF2178.1.5.3GlovesreceivearcratingsfromTestMethodF2675.1.5.4Rainwearmaterials,findingsandclosuresarespeci-fiedbySpecificationF1891.1.5.5GarmentsarespecifiedbySpecificationF1506.1.6Thetestspecimensusedinthispracticearetypicallyintheformofarc-ratedfinishedproducts.Thesearc-ratedfin-ishedproductsmayinclude,butarenotlimitedto,singlelayergarments,multi-layergarmentsorensembles,coolingvests,gloves,sleeves,chaps,rainwear,balacla...