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【英文标准名称】:Connectorsforelectronicequipment-Part7-4:Detailspecificationfor8-way,unshielded,freeandfixedconnectors,fordatatransmissionswithfrequenciesupto250MHz(IEC60603-7-4:2010);GermanversionEN60603-7-4:2010
【原文标准名称】:电子设备连接器.第7-4部分:数据传输频率250MHz及以下的8-路非屏蔽自由和固定连接器的详细规格(IEC60603-7-4-2010).德文版本EN60603-7-4-2010
【标准号】:EN60603-7-4-2010
【标准状态】:现行
【国别】:
【发布日期】:2011-03
【实施或试行日期】:2011-03-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:反向兼容性;串音衰减;数据传送;定义(术语);详细规范;尺寸规格;八极;电连接器;电插头;电气工程;电子工程;电子设备;电子设备及元件;固定式连接器;介入损耗;多极;印制电路;特性;额定值;回程损耗;通信;试验;传输特性;非屏蔽的
【英文主题词】:Backwardcompatibility;Crosstalkattenuation;Datatransfer;Definitions;Detailspecification;Dimensions;Eight-pole;Electricconnectors;Electricplugs;Electricalengineering;Electronicengineering;Electronicequipment;Electronicequipmentandcomponents;Fixedconnectors;Insertionloss;Polypole;Printedcircuits;Properties;Ratings;Returnloss;Telecommunication;Testing;Transmissioncharacteristics;Unscreened
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:18P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforOxidationStabilityofDistillateFuelOil(AcceleratedMethod)
【原文标准名称】:馏出燃料油的氧化稳定性的标准试验方法(加速法)
【标准号】:ASTMD2274-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D02.14
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:dieselfuel;filterableinsolubles;middledistillatefuel;oxidationstability;Acceleratedaging/testing--petroleumproducts;Dieselenginefueloils;Distillatefuels;Oxidativestability;Storagestability--petroleumproducts
【摘要】:ThistestmethodprovidesabasisfortheestimationofthestoragestabilityofmiddledistillatefuelssuchasNo.2fueloil.Thetestmethodmaynotprovideapredictionofthequantityofinsolublesthatwillforminfieldstorageoveranygivenperiodoftime.Theamountofinsolublesformedinsuchfieldstorageissubjecttothespecificconditionswhicharetoovariableforthistestmethodtopredictaccurately.TestMethodD2274yieldsresultsmorerapidlythanTestMethodD4625,the43x00B0;Cbottletest.However,asaresultofthesignificantlyelevatedtemperatureandthepureoxygenatmosphere,thenatureandamountofinsolublesmaydeviatetoagreaterextentthanTestMethodD4625fromthoseformedinfieldstorage.1.1Thistestmethodcoversthemeasurementoftheinherentstabilityofmiddledistillatepetroleumfuelsunderspecifiedoxidizingconditionsat95x00B0;C.Note18212;Fuelsusedinestablishingtheprecisionmeasuresforthistestmethodweredescribedasgasoil,dieselfuel,No.2heatingoil,andDFM,aNavydistillatefuelsuitablefordiesels,boilers,andgasturbines.(ThetermDFMisnolongerusedwhenreferringtofuelmeetingMIL-F-16884requirements;ratheritiscalledF76asitconformstoNATOF76requirements.)Whilethetestmethodmaybeusedforfuelsoutsidetherangeofthesefuels,theprecisionmeasuresmaynotapply.1.2Thistestmethodisnotapplicabletofuelscontainingresidualoil.Thistestmethodhasnotbeenvalidatedfortestingbiodiesel,suchasmeetingSpecificationD6751orblendsofmiddledistillatesandbiodiesel,suchasmeetingSpecificationD7467,orboth.TestMethodD7462hasbeendeterminedtobesuitablefortestingB100andallblendsofmiddledistillatesandbiodiesel.Note28212;No.1andNo.2gradesinSpecificationsD396orD975currentlyallowupto5%biodieselmeetingSpecificationD6751.Samplescontainingbiodieselcanresultinpartialdissolutionorcompromiseofthemembranefilterandgiveerroneousresults.1.3ThevaluesgiveninacceptableSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:6P.;A4
【正文语种】:英语