NF F31-005-1976 铁路运输设备.列车外部显示目的地或定位牌的带卡锁悬挂钩

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【英文标准名称】:Printedboardassemblies-Sectionalspecification-Requirementsforterminalsolderedassemblies
【原文标准名称】:印制电路板组件.分规范.端点焊接组件要求
【标准号】:BSEN61191-4-1999
【标准状态】:现行
【国别】:英国
【发布日期】:1999-01-15
【实施或试行日期】:1999-01-15
【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】:印制电路板;半导体器件;微型装配工艺;连接;电气工程;缺陷;印制电路;接线端;法兰;集成电路;电子设备及元件;金属线;软钎焊
【英文主题词】:
【摘要】:Appliestoassembliesthataretotallyterminal/wireinterconnectingstructures,ortotheterminal/wireportionsofassembliesthatincludeotherrelatedtechnologies.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:22P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforSurfaceWaterAbsorptionofTerryFabrics(WaterFlow)
【原文标准名称】:丝绒纺织品表面吸水性的标准试验方法(水流试验法)
【标准号】:ASTMD4772-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D13.59
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:吸收
【英文主题词】:absorption;surfacewaterabsorption;terryfabric;toweling;water;Absorption--textiles;Bathrooms;Beachtowels;Dishtowels;Facetowels;Handtowels;Kitchenmaterials/applications;Surfacewater;Textilefabrics(general);Towels;Waterabsor
【摘要】:Thistestmethodmaybeusedtotestthesurfacewaterabsorptionofterryfabricsforbathtowels,bathsheets,handtowels,kitchentowels,dishcloths,washcloths,beachwear,bathrobes,andthelike.Differentspecificationsmaybeneededforeachofthesefabricsbecauseofdifferentapplications.Itisrecognizedthatsurfacewaterabsorptionisonlyoneofthecharacteristicsthattheultimateconsumermayuseindeterminingwhichterryfabricisacceptable.ConsultSpecificationD5433forothercharacteristicsthatmaybeapplicabletoterryfabrics.Thistestmethodisrecommendedforqualitycontroltestingofterryfabricsduringmanufacturingandproductcomparisonsofdifferentterryfabricsbymanufacturers,retailers,andusers.Thistestmethodmaybeusedfortheacceptancetestingofcommercialshipmentsofterryfabrics,butcautionisadvisedsinceinterlaboratoryprecisionisknowntobepoor.Comparativetestsasdirectedin5.4.1maybeadvisable.Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoflaboratorysamplingunits(suchastowels)thatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Thelaboratorysamplingunitsshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Theaverageresultsfromthetwolaboratoriesshouldbecomparedusingappropriatestatisticalanalysisforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingisbegun.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandsuppliermustagreetointerpretfuturetestresultswithconsiderationoftheknownbias.1.1Thistestmethoddeterminestheabilityofaterryfabrictorapidlyabsorbandretainliquidwaterfromsurfacessuchashumanskin,dishes,andfurniture.1.2Thistestmethodisnotapplicabletonon-terryfabricssuchashucktowels,waffle-weavetowels,crashtowels,flour-sacktowels,andnonwovenwipes.Thesteepangleofthespecimenontheapparatusmaycausealargeamountofwatertorunoffthesenon-pilefabrics,orthelightweight/openstructureofthesefabricsmayallowalargeamountofwatertocompletelypassthroughthespecimen;thusthetestresultmaynotbeavalidmeasureofanon-terryfabric''sabilitytoabsorbwater.1.3Thistestmethodisnotapplicabletodecorativeterryfabricsthatwillnotbeusedtoabsorbwaterfromsurfaces.1.4ThistestmethodiswritteninSIunits.Theinch-poundunitsthatareprovidedarenotnecessarilyexactequivalentsoftheSIunits.Eithersystemofunitsmaybeusedinthistestmethod.IncaseofrefereedecisionstheSIunitswillprevail.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W55
【国际标准分类号】:59_080_99
【页数】:10P.;A4
【正文语种】:英语