UL94标准

1UL94标准介绍UL94•UL94HBflammabilitystandard(UL94HB可燃性标准)oRequirementsforHB(HB的要求条件)•UL94V-0,V-1,V-2flammabilitystandard(UL94V-0,V-1,V-2可燃性标准)oRequirementsforV-0(V-0的要求条件)oRequirementsforV-1(V-1的要求条件)oRequirementsforV-2(V-2的要求条件)•UL945VA&5VBflammabilitystandard(UL945VA&5VB可燃性标准)oRequirementsfor5VA(5VA的要求条件)oRequirementsfor5VB(5VB的要求条件)•UL94criteriasummary(UL94判定标准摘要)•GlowWiretesting•Obtainingmaterialrecognition(取得材料认证)•ULtestdescriptions(UL测试描述)•ULfilenumbersforRTPCompany(RTP公司的UL档案号码)•RequestingaULYellowCardfromRTPCompany(向RTP公司要UL黄卡)UL94HBflammabilitystandard(UL94HB可燃性标准)Specimen试片Length125mm(5in)xWidth13mm(0.5in)xThickness[typically1.5mm(1/16in)or3.0mm(1/8in)or6.0mm(1/4in)].长125mm(5)X宽13mm(1/2)X厚度[一般为1.5mm(1/16)、3.0mm(1/8)或6.0mm(1/4)厚]Procedure程序1.Threespecimensofeachthicknessaretestedafterconditioningfor48hoursat23degreesCand50%RH.每一种厚度准备了三个试片，测试前先在23℃和50%相对湿度下放置48小时。2.Eachspecimenismountedwithitslongaxishorizontalanditsshortaxisata45degreeangle.每一试片以长轴呈水平、短轴呈45°方式固定。3.Eachspecimenismarkedwithtwolines,25mmand100mmfromoneendofthespecimen.每一试片在25mm及100mm处画线做记号。4.Eachspecimenissupportedatoneendsuchthatitsloweredgeis10mmaboveapieceofwiregauze.每一试片之一端固定，低缘下方10mm处水平放置一片金属细网。5.A20mmhighblueBunsenburnerflameisappliedtothefreeendofthespecimenfor30secondandthenremoved.Ifthespecimencontinuestoburnaftertheremovalofthetestflame,thetimefortheflamefronttotravelbetweenthetwogaugemarksismeasuredandtheburningratecalculatedinmillimetersperminute.一个20mm高蓝色本生灯火焰燃烧试片未固定之一端30秒钟然后移开。在火焰移开后假如试片继续燃烧，则测出火焰由前缘燃烧至2个记号之间所用的时间。燃烧速率以mm/min计算。RequirementsforHBHB等级的判定标准6.Thespecimensmaynothaveaburnrateexceeding40mmperminuteovera275mmspanforspecimenshavingathicknessof3.0mmto13mm,or3.0mm到13mm厚度之试片，没有一个在75mn距离内燃烧速率超过40mm/min或7.Thespecimensmaynothaveaburnrateexceeding75mmperminuteovera75mmspanforspecimenshavingathicknesslessthan3.0mm,or小于3mm厚度之试片，没有一个在75mm距离内燃烧速率超过75mm/min或8.Thespecimensceasetoburnbeforetheflamereachesthe100mmmark.火焰在接近100mm记号前中止燃烧。[Top]UL94V-0,V-1,V-2flammabilitystandard(UL94V-0,V-1,V-2可燃性标准)Specimen试片Length125mm(5in)xWidth13mm(0.5in)xThickness[typically0.7mm(1/32in)or1.5mm(1/16in)or3.0mm(1/8in)].长125mm(5)X宽13mm(1/2)X厚度[一般为0.7mm(1/32)、1.5mm(1/16)、3mm(1/8)厚]Procedure程序1.Atotalof10specimens(2sets)aretestedperthickness.每一厚度总共10个试片(分为两组)被测试。2.Fivespecimensofeachthicknessaretestedafterconditioningfor48hoursat23degreesCand50%RH.每一厚度取5个试片为一组在23℃和50%下放置48小时后再测试。3.Fivespecimensofeachthicknessaretestedafterconditioningfor7daysat70degreesC.同一厚度另取5个试片为一组在70℃下放置7天后再测试。4.Eachspecimenismountedwithlongaxisvertical每一试片以长轴垂直地面方式固定。5.Eachspecimenissupportedsuchthatitslowerendis10mmaboveBunsenburnertube.试片上端被支撑以致下端高于本生灯10mm。6.Ablue20mmhighflameisappliedtothecenteroftheloweredgeofthespecimenfor10secondsandremoved.Ifburningceaseswithin30seconds,theflameisreappliedforanadditional10seconds.Ifthespecimendrips,particlesareallowedtofallontoalayerofdryabsorbentsurgicalcottonplaced300mmbelowthespecimen.蓝色20mm高火焰燃烧试片下端边缘中心10秒钟，然后移开。假如试片在30秒之内停止燃烧，则本生灯火焰再次燃烧试片下端边缘中心10秒钟。假如试片熔化，则滴下来的火焰分子会掉落在距试片下端300mm处之棉花层。RequirementsforV-0(V-0的要求条件)7.Thespecimensmaynotburnwithflamingcombustionformorethan10secondsaftereitherapplicationofthetestflame.在每一次本生灯火焰燃烧10秒钟移开后，没有任何一个试片被火焰点燃超过10秒钟。8.Thetotalflamingcombustiontimemaynotexceed50secondsforthe10flameapplicationsforeachsetof5specimens.每一组的5个试片中，共10次火焰燃烧10秒钟移开后，总共火焰燃烧的时间不超过50秒钟。9.Thespecimensmaynotburnwithflamingorglowingcombustionuptotheholdingclamp.3没有任何试片被火焰点燃并燃烧到试片被夹住固定的上端。10.Thespecimensmaynotdripflamingparticlesthatignitethedryabsorbentsurgicalcottonlocated300mmbelowthetestspecimen.没有任何试片滴落的火焰分子会点燃300mm下之乾燥的吸收性外科用棉花。11.Thespecimensmaynothaveglowingcombustionthatpersistsformorethan30secondsafterthesecondremovalofthetestflame.没有任何试片在第二次测试火焰移开后燃烧持续超过30秒钟。RequirementsforV-1(V-1的要求条件)12.Thespecimensmaynotburnwithflamingcombustionformorethan30secondsaftereitherapplicationofthetestflame.在每一次本生灯火焰燃烧10秒钟移开后，没有任何一个试片被火焰点燃超过30秒钟。13.Thetotalflamingcombustiontimemaynotexceed250secondsforthe10flameapplicationsforeachsetof5specimens.每一组的5个试片中，共10次火焰燃烧10秒钟移开后，总共火焰燃烧时间不超过250秒钟。14.Thespecimensmaynotburnwithflamingorglowingcombustionuptotheholdingclamp.没有任何试片被火焰点燃并燃烧到试片被夹住固定的上端。15.Thespecimensmaynotdripflamingparticlesthatignitethedryabsorbentsurgicalcottonlocated300mmbelowthetestspecimen.没有任何试片滴落的火焰分子会点燃300mm下之乾燥的吸收性外科用棉花。16.Thespecimensmaynothaveglowingcombustionthatpersistsformorethan60secondsafterthesecondremovalofthetestflame.没有任何试片在第二次测试火焰移开后燃烧持续超过60秒钟。RequirementsforV-2(V-2的要求条件)17.Thespecimensmaynotburnwithflamingcombustionformorethan30secondsaftereitherapplicationofthetestflame.在每一次本生灯火焰燃烧10秒钟移开后没有任何一个试片被火焰点燃超过30秒钟。18.Thetotalflamingcombustiontimemaynotexceed250secondsforthe10flameapplicationsforeachsetof5specimens.每一组的5个试片中，若10次火焰燃烧10秒钟移开后，总共火焰燃烧不超过250秒钟。19.Thespecimensmaynotburnwithflamingorglowingcombustionuptotheholdingclamp.没有任何试片被火焰点燃并燃烧到试片被夹住固定的上端。20.Thespecimenscandripflamingparticlesthatignitethedryabsorbentsurgicalcottonlocated300mmbelowthetestspecimen.试片滴落的火焰分子会有短暂的燃烧，且会点燃300mm之下的乾燥的吸收性外科用棉花层。21.Thespecimensmaynothav