【英文标准名称】:StandardTestMethodforMeasurementofDryFilmThicknessofThinFilmCoil-CoatedSystemsbyDestructiveMeansUsingaBoringDevice
【原文标准名称】:用钻孔装置破坏性测量薄膜盘绕覆层系统的干膜厚度的标准试验方法
【标准号】:ASTMD5796-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D01.53
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;干膜;层覆材料;精整;破坏试验;覆层厚度
【英文主题词】:borerbit;boring;crater;destructive;dryfilm;measurestage;micrometer;thickness;thinfilms;videocamera
【摘要】:Measurementofdryfilmthicknessoforganiccoatingsbyphysicallycuttingthroughthefilmandopticallyobservingandmeasuringthethicknessofferstheadvantageofdirectmeasurementascomparedwithnondestructivemeans.Constituentcoatinglayersofanoverallthicknessofacoatingsystemcanusuallybemeasuredindividuallybythistestmethod,provideadhesionbetweeneachlayerissufficient.(However,thiscanbedifficultincaseswheretheprimer,topcoat,ormultiplecoatinglayershavethesame,orverysimilar,appearance.)1.1Thistestmethodcoversthemeasurementofdryfilmthickness(DFT)ofcoatingfilmsbymicroscopicobservationofaprecision-cut,shallow-anglecraterboredintothecoatingfilm.Thiscraterrevealscrosssectionallayersappearingasrings,whosewidthisproportionaltothedepthofthecoatinglayer(s)andallowsfordirectcalculationofdryfilmthickness.1.1.1TheApparatus,Procedure,andPrecisionandBiasdiscussionsincludeMethodAandMethodB.MethodAinvolvestheuseofanopticalmeasurementapparatuswhichisnolongercommerciallyavailable,butremainsavalidmethodofdryfilmmeasurement.MethodBisasoftwaredrivenmeasurementprocedurethatsupersedesMethodA.1.2Thesubstratemaybeanyrigid,metallicmaterial,suchascold-rolledsteel,hot-dippedgalvanizedsteel,aluminum,etc.Thesubstratemustbeplanarwiththeexceptionofsubstratesexhibiting"coilset,"whichmaybeheldlevelbytheuseoftheclampingtoolonthedrillingdevice.Note18212;Variationsinthesurfaceprofileofthesubstratemayresultinmisrepresentativeorganiccoatingthicknessreadings.Thisconditionmayexistoversubstratessuchashot-dipped,coatedsteelsheet.Thisistrueofall"precisioncut"methodsthatareusedtodeterminedryfilmthicknessoforganiccoatings.Thisiswhyseveralmeasurementsacrossthestripmaybeusefulifsubstratesurfaceprofileissuspect.1.3Therangeofthicknessmeasurementis0to3.5mils(0to89956;m).Note28212;ForDFTmeasurementsoffilmsgreaterthan3.5mils(89956;m),butlessthan63mils(1600956;m),a45176;borermaybeusedinaccordancewiththistestmethod,withtheexceptionof6.8,wherethemicrometerreadingwouldprovideadirectread-out,anddivisionbytenwouldbeunnecessaryper4.3.1MethodA.1.4Measurementsmaybemadeoncoil-coatedsheet,certainformedproducts,orontestpanels.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:17_040_20
【页数】:4P.;A4
【正文语种】:


【英文标准名称】:StandardonCleanAgentFireExtinguishingSystems
【原文标准名称】:清洗剂灭火系统标准
【标准号】:ANSI/NFPA2001-2012
【标准状态】:现行
【国别】:美国
【发布日期】:2012
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Erasingdevices;Extinguishingagents;Fireprevention;Firesafety;Qualityrequirements
【摘要】:1.1Scope.Thisstandardcontainsminimumrequirementsfortotalfloodingandlocalapplicationcleanagentfireextinguishingsystems.Itdoesnotcoverfireextinguishingsystemsthatusecarbondioxideorwaterastheprimaryextinguishingmedia,whichareaddressedbyotherNFPAdocuments.
【中国标准分类号】:C84
【国际标准分类号】:13_220_20
【页数】:
【正文语种】:英语