Designation:F2178−12StandardTestMethodforDeterminingtheArcRatingandStandardSpecificationforEyeorFaceProtectiveProducts1ThisstandardisissuedunderthefixeddesignationF2178;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodandproductspecificationisusedtomeasurethearcratingandspecifytherequirementsforproductsintendedforuseaseyeorfaceprotectionforworkersexposedtoelectricarcsthatwouldgenerateheatfluxvaluesfrom84to25120kW/m2[2to600cal/cm2s].Productsaretestedassold.1.2Thistestmethoddeterminesanarcratingforeyeorfaceprotectiveproducts.Thefaceshield,safetyspectacle,goggleororotherapplicableportionsofthecompleteproductmustmeetANSIZ87.1.ThisexcludesthetextileornonANSIZ87.1testablepartsofthehoodassembliesorothertestedproducts.Thisstandarddoesnotmeasureopticalandimpactproperties(seeANSIZ87.1)butdoesspecifyrequirementsforopticalandimpactproperties.1.3Thematerialscoveredbythisstandardareintheformoffaceshieldsattachedtotheheadbyprotectivehelmets(hardhats),headgear,hoodassemblies,safetyspectaclesorgoggles.Faceshields,safetyspectaclesorgogglesaretestedwithorwithoutotherfaceandheadprotectiveproducts,forexample,sockhoods,balaclavas,sweatshirthoodsorjackethoods.1.3.1FabriclayersusedinhoodassembliesorotheritemstestedunderthisstandardshallmeettherequirementsofSpecificationF1506.1.4Thistestmethodshallbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoconvectiveandradiantenergygeneratedbyanelectricarcundercontrolledlaboratoryconditionsanddoesnotpurporttopredictdamagefromlightotherthanthethermalaspectsmeasured.1.5ThevaluesstatedinSIunitsshallberegardedasstandardexceptasnoted.Withinthetext,alternateunitsareshowninbrackets.Thevaluesstatedineachsystemmaynobeexactequivalents;therefore,alternatesystemsmustbeusedindependentlyoftheother.C...
