DIN 45635-2106-1992 机器空气噪声的测量.包络面法.电动工具.冲击螺丝旋具的附加规定

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【英文标准名称】:Measurementofairbornenoiseemittedbymachines;envelopingsurfacemethod;electrictools;additionalspecificationsforimpactscrewdrivers
【原文标准名称】:机器空气噪声的测量.包络面法.电动工具.冲击螺丝旋具的附加规定
【标准号】:DIN45635-2106-1992
【标准状态】:作废
【国别】:德国
【发布日期】:1992-07
【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】:声学测量;声强;声音传播;冲击式扳手;职业安全;旋具和螺母扳手;机床;工具;尺寸;机器;噪声测量;发出的空气噪声;包络面法;噪声辐射;声级;噪声降低;测量;声学;辐射;电动工具;声功率
【英文主题词】:
【摘要】:
【中国标准分类号】:K64;Z32
【国际标准分类号】:17_140_20
【页数】:4P;A4
【正文语种】:德语


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【英文标准名称】:Fixedcapacitorsforuseinelectronicequipment;part14:sectionalspecification:fixedcapacitorsforelectromagneticinterferencesuppressionandconnectiontothesupplymains
【原文标准名称】:电子设备用固定电容器第14部分:分规范:抑制电磁干扰和电源网络连接用固定电容器
【标准号】:IEC60384-14-1993
【标准状态】:作废
【国别】:国际
【发布日期】:1993-07
【实施或试行日期】:
【发布单位】:国际电工委员会(IEC)
【起草单位】:IEC/TC40
【标准类型】:()
【标准水平】:()
【中文主题词】:电子仪器;电磁兼容性;电磁特性;电气工程;电容器;(电网)电源;干扰抑制;分规范;固定电容器;电子设备及元件
【英文主题词】:
【摘要】:
【中国标准分类号】:L11
【国际标准分类号】:31_060_10
【页数】:109P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodforCoefficientofFriction,YarntoYarn
【原文标准名称】:纱与纱之间摩擦系数的标准试验方法
【标准号】:ASTMD3412-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D13.58
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:摩擦;摩擦率;试验;纺织试验;纺织品;纱
【英文主题词】:coefficientoffriction;yarns;yarntoyarn
【摘要】:Thistestmethodfortestingyarn-to-yarnfrictionisbeingused,butisnotrecommended,foracceptancetestingofcommercialshipmentssincebetween-laboratoryprecisionisknowntobepoor.5.1.1Insomecases,thepurchaserandsuppliermayhavetotestacommercialshipmentofoneormorespecificmaterialsbythebestavailablemethodeventhoughthemethodhasnotbeenrecommendedforacceptancetestingofcommercialshipments.IncaseofadisputearisingfromdifferencesinreportedtestresultswhenusingTestMethodD3412foracceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudentrsquo;t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingisbegun.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultswithconsiderationtotheknownbias.Thistestmethodisintendedforthedeterminationofyarn-to-yarnboundaryfrictioncoefficientsmeasuredoveraspecifiedlengthofyarn.Thetestmethodisusefulforqualitycontrol,research,andthecharacterizationofyarnboundarylubricants.Note38212;Becausethegeometryoftheyarnsisdifferent,Options1and2shouldnotbeexpectedtogivethesamenumericalvaluesonthesameyarns.FIG.1TwistedStrandYarn-to-YarnFrictionApparatusx2014;Twisted-YarnMethod1.1Thistestmethodcoversthemeasurementoffrictionalpropertiesforbothcontinuousfilamentandspun-stapleyarnsunderboundaryfrictionconditions.1.2Thistestmethodhasbeenusedwithyarnshavinglineardensitiesrangingfrom1.5to200tex,butmaybeusedwithyarnsoutsidetheseranges(15to1800denier).Note1Forcoefficientoffriction,yarntometal,seeTestMethodD3108.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_20
【页数】:5P.;A4
【正文语种】: