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【英文标准名称】:StandardTestMethodforDeterminingtheArcRatingandStandardSpecificationforFaceProtectiveProducts
【原文标准名称】:测定电弧额定值用标准试验方法和面部防护用品的标准规范
【标准号】:ASTMF2178-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F18.65
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:arcrating;electricarc;faceshield;goggle;hood;safetyspectacle;Arcrating;Calibration;Electricalprotectiveequipment;Faceprotectiveequipment;Hoods
【摘要】:Thistestmethodisintendedforthedeterminationofthearcratingofaproduct/design,intendedforuseaseyeorfaceprotectionforworkersexposedtoelectricarcs.Becauseofthevariabilityofthearcexposure,differentheattransmissionvaluesmaybeobservedatindividualsensors.TheresultsofeachsensorareevaluatedinaccordancewithSection12.Thistestmethodmaintainsthespecimeninastatic,verticalpositionanddoesnotinvolvemovementexceptthatresultingfromtheexposure.Thistestmethodspecifiesastandardsetofexposureconditions.Differentexposureconditionsmayproducedifferentresults.Thisspecificationcoverstheminimumperformancecriteriaforarcresistanceandotherrequirementsforeyeorfaceprotectiveproductsusedbyworkerswhomaybeexposedtothermalhazardsofmomentaryelectricarcsorflame.Thepurchaserhastheoptiontoperformorhaveperformedanyofthesetestsinordertoverifytheperformanceoftheeyeorfaceprotectiveproduct.Claimsforfailuretomeetthespecificationaresubjecttoverificationbythemanufacturer.Note18212;Inadditiontothestandardsetofexposureconditions,otherconditionsrepresentativeoftheexpectedhazardmaybeusedandshallbereportedshouldthisdatabecited.1.1Thistestmethodandproductspecificationisusedtomeasurethearcratingandspecifytherequirementsforproductsintendedforuseaseyeorfaceprotectionforworkersexposedtoelectricarcsthatwouldgenerateheatfluxvaluesfrom84to25120kW/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.Combiningvaluesfromthesystemsdescribedinthetextmayresultinnonconformancewiththemethod.1.6Thisstandarddoesnotpurporttodescribeorappraisetheeffectoftheelectricarcfragmentationexplosionandsubsequentmoltenmetalsplatter,whichinvolvesthepressurewavecontainingmoltenmetalsandpossiblefragmentsofothermaterialsexcepttotheextentthatheatenergytransmissionduetothesearcexplosionphenomenaisreducedbytestspecimens.1.7Thisstandardshallnotbeusedtodescribeorappraisethe......
【中国标准分类号】:C73
【国际标准分类号】:13_340_20
【页数】:14P.;A4
【正文语种】:英语