【英文标准名称】:Fixedcapacitorsforuseinelectronicequipment--Part17:Sectionalspecification:Fixedmetallizedpolypropylenefilmdielectrica.c.andpulsecapacitors
【原文标准名称】:电子设备用固定电容器.第17部分:分规范:金属化聚丙烯膜介质直流和脉冲固定电容器
【标准号】:JISC5101-17-2009
【标准状态】:现行
【国别】:日本
【发布日期】:2009-02-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonElectronics
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThisStandardisasectionalspecificationassociatedwiththegenericspecificationJISC5101-1andappliestofixedmetallizedpolypropylenefilmdielectrica.c.andpulsecapacitorsforuseinelectronicequipment(hereafterreferredtoas"capacitors").Itcoversfixedcapacitorswithmetallizedelectrodesandpolypropylenedielectricforuseinelectronicequipment.NOTE1CapacitorswhichhavemixedfoilandmetallizedelectrodesarealsowithinthescopeofthisStandard.Thesecapacitorsmayhave"self-healing"propertiesdependingonconditionsofuse.CapacitorscoveredbythisStandardaremainlyintendedforusewithalternatingvoltageand/orforpulseapplications.Themaximumreactivepowerapplicableis10000varandthemaximumpeakvoltageis3000V.Capacitorsforreactivepowerexceeding500varandtowhichamaximumpeakvoltageof2500Vat50HzcanbeappliedarenotcoveredbythisStandard,exceptwhentheyarethehighestpartofarangeofreactivepowermainlysituatedbelow500varat50Hz.ThisStandardisnotintendedtocovercapacitancevalueshigherthan20μF.Twoperformancegradesofcapacitorsarecovered,Grade1forlong-lifeapplicationandGrade2forgeneralapplication.Capacitorsforelectromagneticinterferencesuppressionarenotincluded,butarecoveredbyJISC5101-14.Capacitorsforelectricalshockhazardprotection(coveredbyIEC60065)andfluorescentlampandmotorcapacitorsarealsoexcluded.NOTE2TheInternationalStandardcorrespondingtothisStandardisasfollows.IEC60384-17:2005Fixedcapacitorsforuseinelectronicequipment—Part17:Sectionalspecification:Fixedmetallizedpolypropylenefilmdielectrica.c.andpulsecapacitors(IDT)Inaddition,symbolswhichdenotethedegreeofcorrespondenceinthecontentsbetweentherelevantInternationalStandardandJISareIDT(identical),MOD(modified),andNEQ(notequivalent)accordingtoISO/IECGuide21.
【中国标准分类号】:L11
【国际标准分类号】:31_060_30
【页数】:37P.;A4
【正文语种】:日语


【英文标准名称】:StandardTestMethodforAcidandBaseNumberbyColor-IndicatorTitration
【原文标准名称】:用颜色指示剂滴定法测定酸碱值的标准试验方法
【标准号】:ASTMD974-2008e1
【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】:D02.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:acidnumber;basenumber;colorindicationtitration;petroleumproducts;Acidity,alkalinity,pH--petroleumproducts;Acidnumber--petroleumproducts;Color--petroleumproducts;Color-indicatortitration;Neutralizationnumbers
【摘要】:Newandusedpetroleumproductscancontainbasicoracidicconstituentsthatarepresentasadditivesorasdegradationproductsformedduringservice,suchasoxidationproducts.Therelativeamountofthesematerialscanbedeterminedbytitratingwithacidsorbases.Thisnumber,whetherexpressedasacidnumberorbasenumber,isameasureofthisamountofacidicorbasicsubstances,respectively,intheoilalwaysundertheconditionsofthetest.Thisnumberisusedasaguideinthequalitycontroloflubricatingoilformulations.Itisalsosometimesusedasameasureoflubricantdegradationinservice;however,anycondemninglimitsmustbeempiricallyestablished.Sinceavarietyofoxidationproductscontributetotheacidnumberandtheorganicacidsvarywidelyincorrosiveproperties,thetestcannotbeusedtopredictcorrosivenessofanoilunderserviceconditions.Nogeneralcorrelationisknownbetweenacidnumberandthecorrosivetendencyofoilstowardmetals.Compoundedengineoilscanandusuallydohavebothacidandbasenumbersinthistestmethod.1.1Thistestmethodcoversthedeterminationofacidicorbasicconstituents(Note1)inpetroleumproductsandlubricantssolubleornearlysolubleinmixturesoftolueneandisopropylalcohol.Itisapplicableforthedeterminationofacidsorbaseswhosedissociationconstantsinwaterarelargerthan10x2212;9;extremelyweakacidsorbaseswhosedissociationconstantsaresmallerthan10x2212;9donotinterfere.Saltsreactiftheirhydrolysisconstantsarelargerthan10x2212;9.Note18212;Innewandusedoils,theconstituentsconsideredtohaveacidiccharacteristicsincludeorganicandinorganicacids,esters,phenoliccompounds,lactones,resins,saltsofheavymetals,andadditionagentssuchasinhibitorsanddetergents.Similarly,constituentsconsideredtohavebasicpropertiesincludeorganicandinorganicbases,aminocompounds,saltsofweakacids(soaps),basicsaltsofpolyacidicbases,saltsofheavymetals,andadditionagentssuchasinhibitorsanddetergents.Note28212;Thistestmethodisnotsuitableformeasuringthebasicconstituentsofmanybasicadditive-typelubricatingoils.TestMethodD4739canbeusedforthispurpose.1.2Thistestmethodcanbeusedtoindicaterelativechangesthatoccurinanoilduringuseunderoxidizingconditions.Althoughthetitrationismadeunderdefiniteequilibriumconditions,themethoddoesnotmeasureanabsoluteacidicorbasicpropertythatcanbeusedtopredictperformanceofanoilunderserviceconditions.Nogeneralrelationshipbetweenbearingcorrosionandacidorbasenumbersisknown.Note38212;Oils,suchasmanycuttingoils,rustproofingoils,andsimilarcompoundedoils,orexcessivelydark-coloredoils,thatcannotbeanalyzedforacidnumberbythistestmethodduetoobscurityofthecolor-indicatorendpoint,canbeanalyzedbyTestMethodD664.Theacidnumbersobtainedbythiscolor-indicatortestmethodneednotbenumericallythesameasthoseobtainedbyTestMethodD664,thebasenumbersobtainedbythiscolorindicatortestmethodneednotbenumericallythesameasthoseobtainedbyTestMethod