IEC 60249-2-9 AMD 3-1993 印制电路用基材.第2部分:规范.第9号规范:易燃的具有环氧纤维纸芯且表面覆铜的环氧玻璃布层压板(垂直燃烧试验).修改件3
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【英文标准名称】:Basematerialsforprintedcircuits;part2:specifications;specification9:epoxidecellulosepapercore,epoxideglassclothsurfacescopper-cladlaminatedsheetofdefinedflammability(verticalburningtest);amendment3
【原文标准名称】:印制电路用基材.第2部分:规范.第9号规范:易燃的具有环氧纤维纸芯且表面覆铜的环氧玻璃布层压板(垂直燃烧试验).修改件3
【标准号】:IEC60249-2-9AMD3-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-05
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC91
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:AmendstablesI,X,clause7,replacestablesVI,VIII,IX,deletessubclause5.6(Solderability),addsnewsubclauses5.8(Sizetolerances)and5.9(Rectangularityofcutpanels).
【中国标准分类号】:L90;L30
【国际标准分类号】:13_220_40;31_180
【页数】:11P;A4
【正文语种】:英语
【英文标准名称】:Industrial-processcontrolsystems-Instrumentswithanalogueinputsandtwo-ormulti-stateoutputs-Methodsofevaluatingperformance
【原文标准名称】:工业过程控制系统.具有模似输入和两个或多个输出状态的仪表.性能评定方法
【标准号】:BSEN61003-1-2004
【标准状态】:现行
【国别】:英国
【发布日期】:2004-05-06
【实施或试行日期】:2004-05-06
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofIEC61003isapplicabletopneumaticandelectricindustrial-processinstrumentsusingmeasuredvaluesthatarecontinuoussignalsinaccordancewithIEC60382,orIEC60381-1.Theotherinputvalue(i.e.thesetpointvalue)maybeeitheramechanical(position,force,etc.)orastandardsignal.Itshouldbenotedthattestsspecifiedhereinmaybeappliedtoinstrumentswhichhaveothercontinuousmeasuredvalues,providedthatdueallowanceismadeforsuchdifferences.Theseinstrumentsmaybeusedascontrollersorasswitchesforalarmandothersimilarpurposes.Instrumentswithfeedbackarenotcoveredbythisstandard.Electronicsecurityissuesmayimpactonlyafewproductscoveredbythisdocument.Consequentlythisdocumentdoesnotaddresssuchsecurityissues.Thisstandardisintendedtospecifyuniformtestingmethodsforperformanceevaluationofindustrial-processinstrumentswithanaloguemeasuredvaluesandtwo-ormulti-stateoutputs.ConsiderationsotherthantheperformancesarelistedinClause10.
【中国标准分类号】:N18
【国际标准分类号】:25_040_40
【页数】:34P;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDirect-CurrentMagneticPropertiesofMaterialsUsingtheBallisticMethodandRingSpecimens
【原文标准名称】:用环形试验法和冲击法测定材料的直流磁性能的标准试验方法
【标准号】:ASTMA596/A596M-1995(2009)e1
【标准状态】:现行
【国别】:美国
【发布日期】:1995
【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】:A06.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:ballistictest;coerciveforce;directcurrent;Epstein;induction;magneticfieldstrength;magnetictest;permeability;residualinduction;Ballistictest;Coerciveforce;D-cmagneticproperties;Direct-currentballisticmethods;Direct-currentp
【摘要】:Testmethodsusingsuitablering-typespecimensarethepreferredmethodsofdeterminingthebasicmagneticpropertiesofamaterialcausedbytheabsenceofdemagnetizingeffectsandarewellsuitedforspecificationacceptance,serviceevaluation,andresearchanddevelopment.Providedthetestspecimenisrepresentativeofthebulkmaterialasisusuallythecaseforthinstripandwire,thistestisalsosuitablefordesignpurposes.Whenthetestspecimenisnotnecessarilyrepresentativeofthebulkmaterialsuchasaringmachinedfromalargeforgingorcasting,theresultsofthistestmethodmaynotbeanaccurateindicatorofthemagneticpropertiesofthebulkmaterial.Insuchinstances,thetestresultswhenviewedincontextofpastperformancehistorywillbeusefulforjudgingthesuitabilityofthecurrentmaterialfortheintendedapplication.1.1Thistestmethodcoversdcballistictestingforthedeterminationofbasicmagneticpropertiesofmaterialsintheformofring,toroidal,link,double-lappedEpsteincores,orotherstandardshapeswhichmaybecut,stamped,machined,orgroundfromcast,compacted,sintered,forged,orrolledmaterials.Itincludestestsfornormalinductionandhysteresistakenunderconditionsofsteepwavefrontreversalsofthedirect-currentmagneticfieldstrength.1.2ThistestmethodshallbeusedinconjunctionwithPracticeA34/A34M.1.3Thistestmethodissuitableforatestingrangefromverylowmagneticfieldstrengthupto200ormoreOe[15.9ormorekA/m].Thelowerlimitisdeterminedbyintegratorsensitivityandtheupperlimitbyheatgenerationinthemagnetizingwinding.Specialtechniquesandshortdurationtestingmayextendtheupperlimitofmagneticfieldstrength.1.4Testingunderthistestmethodisinherentlymoreaccuratethanothermethods.Whenspecifieddimensionalorshaperequirementsareobserved,themeasurementsareagoodapproximationtoabsoluteproperties.Testaccuracyavailableisprimarilylimitedbytheaccuracyofinstrumentation.Inmostcases,equivalentresultsmaybeobtainedusingTestMethodA773/A773MorthetestmethodsofIECPublication60404-4.1.5Thistestmethodpermitsachoiceoftestspecimentopermitmeasurementofpropertiesinanydesireddirectionrelativetothedirectionofcrystallographicorientationwithoutinterferencefromexternalyokesystems.1.6ThesymbolsandabbreviateddefinitionsusedinthistestmethodappearinFig.1andSections5,6,9,and10.FortheofficialdefinitionsseeTerminologyA340.Notethatthetermfluxdensityusedinthisdocumentissynonymouswiththetermmagneticinduction.1.7Warningx2014;MercuryhasbeendesignatedbyEPAandmanystateagenciesasahazardousmaterialthatcancausecentralnervoussystem,kidney,andliverdamage.Mercury,oritsvapor,maybehazardoustohealthandcorrosivetomaterials.Cautionshouldbetakenwhenhandlingmercuryandmercury-containingproducts.SeetheapplicableproductMaterialSafetyDataSheet(MSDS)fordetailsandEPAx2019;swebsite(http://www.epa.gov/mercury/faq.htm)foradditionalinformation.Usersshouldbeawarethatsellingmercuryormercury-containingproducts,orboth,inyourstatemaybeprohibitedbystatelaw.1.8Thevaluesstatedineithercustomary(cgs-emuandinch-pound)unitsorSIunitsaretoberegardedseparatelyasstandard.Withinth......
【中国标准分类号】:H21
【国际标准分类号】:29_030;29_100_10
【页数】:8P.;A4
【正文语种】:英语
