JIS C0905-1983 一般工业用防爆电气设备结构的补充要求
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来源:标准资料网
【英文标准名称】:Supplementaryrequirementsforconstructionofelectricalapparatusforexplosiveatmospheresingeneralindustry
【原文标准名称】:一般工业用防爆电气设备结构的补充要求
【标准号】:JISC0905-1983
【标准状态】:作废
【国别】:日本
【发布日期】:
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:Electricity
【标准类型】:()
【标准水平】:()
【中文主题词】:炸药;电功率;电气设备;火灾危险;爆炸性环境;气体;电力设备;电学;煤气;建筑;电力系统
【英文主题词】:explosiveatmospheres;firerisks;;electricpower(wattage);electricity;
【摘要】:
【中国标准分类号】:K35
【国际标准分类号】:29_260_20
【页数】:10P;A4
【正文语种】:日语
【英文标准名称】:Electricalmeasuringmethodsforintegratedcircuits;smallsignalinputimpedance
【原文标准名称】:集成电路的测量方法.小信号输入阻抗Zi
【标准号】:DIN44480-45-1982
【标准状态】:作废
【国别】:德国
【发布日期】:1982-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:电子工程;放大器;信号;半导体;集成电路;电气工程;测量
【英文主题词】:electronicengineering;integratedcircuits;semiconductors;electricalengineering;amplifiers;signals;measurement
【摘要】:
【中国标准分类号】:L55
【国际标准分类号】:31_200
【页数】:3P;A4
【正文语种】:德语
【英文标准名称】:StandardTestMethodforDeterminationofYieldStressandApparentViscosityofEngineOilsatLowTemperature
【原文标准名称】:发动机油在低温下表观粘度和弯曲应力测定的试验方法
【标准号】:ASTMD4684-2008
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:lowtemperatureflowproperties;lowtemperatureviscosity;mini-rotaryviscometer;pumpingviscosity;useddieselengineoil;viscosity;yieldstress;Calibration--petroleumanalysisinstrumentation;Coolingcharacteristics/profiles;Fueloils;Newtonian
【摘要】:Whenanengineoiliscooled,therateanddurationofcoolingcanaffectitsyieldstressandviscosity.Inthislaboratorytest,afreshengineoilisslowlycooledthroughatemperaturerangewherewaxcrystallizationisknowntooccur,followedbyrelativelyrapidcoolingtothefinaltesttemperature.Theselaboratorytestresultshavepredictedasfailurestheknownengineoilsthathavefailedinthefieldbecauseoflackofoilpumpability.Thesedocumentedfieldfailingoilshaveallconsistedofoilsnormallytestedatx2013;25x00B0;C.Thesefieldfailuresarebelievedtobetheresultoftheoilformingagelstructurethatresultsineitherexcessiveyieldstressorviscosityoftheengineoil,orboth.CoolingProfiles:Foroilstobetestedatx2212;20x00B0;Corcolder,TableX1.1applies.ThecoolingprofiledescribedinTableX1.1isbasedontheviscositypropertiesoftheASTMPumpabilityReferenceOils(PRO).Thisseriesofoilsincludesoilswithnormallow-temperatureflowpropertiesandoilsthathavebeenassociatedwithlow-temperaturepumpabilityproblems(1-5).Significanceforthex2212;35andx2212;40x00B0;Ctemperatureprofilesisbasedonthedatacollectedfromthex201C;ColdStartingandPumpabilityStudiesinModernEnginesx201D;conductedbyASTM(6,7).Foroilstobetestedatx2212;15orx2212;10x00B0;C,TableX1.2applies.Nosignificancehasbeendeterminedforthistemperatureprofilebecauseoftheabsenceofappropriatereferenceoils.Similarly,precisionofthetestmethodusingthisprofileforthex2212;10x00B0;Ctesttemperatureisunknown.ThetemperatureprofileofTableX1.2isderivedfromtheoneinTableX1.1andhasbeenmovedupintemperature,relativetoTableX1.1,inconsiderationoftheexpectedhighercloudpointsoftheviscousoilstestedatx2212;15andx2212;10x00B0;C.1.1Thistestmethodcoversthemeasurementoftheyieldstressandviscosityofengineoilsaftercoolingatcontrolledratesoveraperiodexceeding45htoafinaltesttemperaturebetweenx2013;10andx2013;40x00B0;C.Theviscositymeasurementsaremadeatashearstressof525Paoverashearrateof0.4to15sx2013;1.Theviscosityasmeasuredatthisshearstresswasfoundtoproducethebestcorrelationbetweenthetemperatureatwhichtheviscosityreachedacriticalvalueandborderlinepumpingfailuretemperatureinengines.1.2Thistestmethodcontaintwoprocedures:ProcedureAincorporatesseveralequipmentandproceduralmodificationsfromTestMethodD4684x2013;02thathaveshowntoimprovetheprecisionofthetest,whileProcedureBisunchangedfromTestMethodD4684x2013;02.Additionally,ProcedureAappliestothoseinstrumentsthatutilizethermoelectriccoolingtechnologyordirectrefrigerationtechnologyofrecentmanufactureforinstrumenttemperaturecontrol.ProcedureBcanusethesameinstrumentsusedinProcedureAorthosecooledbycirculatingmethanol.1.3ProcedureAofthistestmethod......
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:13P.;A4
【正文语种】:英语
