DIN 1687-1-1980 重金属合金的铸件毛坯.砂模铸造.一般公差及加工余量

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【英文标准名称】:StandardTestMethodsforHeat-ShrinkableTubingforElectricalUse
【原文标准名称】:电气用热收缩管的标准试验方法
【标准号】:ASTMD2671-2000(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D09.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:收缩;试验;电绝缘;管;覆层;热缩元件;电气工程
【英文主题词】:adhesivepeelstrength;brittlenesstemperature;color;colorstability;coppercorrosion;dielectricbreakdownvoltage;dielectricstrength;flameresistance;fluidresistance;fungusresistance;heatresistance;heatshock;heatshrinkabletubing;insidediameter;length;lowtemperature;meltingpoint;restrictedshrinkage;secantmodulus;specificgravity;storagelife;stressmodulus;temperatureindex;tensilestrength;testmethods;thermalendurance;thermalendurancegraph;tubing;heat-shrinkable;ultimateelongation;volumeresistivity;wallconcentricity;wallthickness;waterabsorption
【摘要】:Thesetestmethodsincludemostoftheimportanttestsusedtocharacterizeheat-shrinkabletubing.Theyareintendedprimarilyfor,butnotlimitedto,extrudedheat-shrinkabletubing.Variationsinthesetestmethodsoralternatecontemporarymethodsofmeasurementmaybeusedtodeterminethevaluesforthepropertiesinthisstandardprovidedsuchmethodsensurequalitylevelsandmeasurementaccuracyequaltoorbetterthanthoseprescribedherein.Itistheresponsibilityoftheorganizationsusingalternatetestmethodstobeabletodemonstratethiscondition.Incasesofdispute,themethodsspecifiedhereinshallbeused.Note28212;Provisionforalternatemethodsisnecessarybecauseof(1)thedesiretosimplifyproceduresforspecificapplicationswithoutalteringtheresult,and(2)thedesiretoeliminateredundanttestingandusedatageneratedduringmanufacturingprocesscontrol,includingthatgeneratedunderStatisticalProcessControl(SPC)conditions,usingequipmentandmethodsotherthanthosespecifiedherein.Anexamplewouldbetheuseoflasermicrometersoropticalcomparatorstomeasuredimensions.1.1Thesetestmethodscoverthetestingofheat-shrinkabletubingusedforelectricalinsulation.Materialsusedincludepoly(vinylchloride),polyolefins,fluorocarbonpolymers,siliconerubber,andotherplasticorelastomericcompounds.1.2Thevaluesstatedininch-poundunitsarethestandardexceptfortemperature,whichshallbeexpressedindegreesCelsius.Valuesstatedinparenthesesareforinformationonly.1.3Theproceduresappearinthefollowingsections:1.4Thisisafire-test-responsestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSectionsand.Note1Thesetestmethodsaresimilar,butnotidenticalto,thoseinIEC60684-2(seealsoNote0).1.5Thisisafire-test-responsestandard.Thetestproceduresmeasuretheresistanceofthetubingtoignitionandpropagationofflameafterignitionunderprescribedconditionsoftest.1.6Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.
【中国标准分类号】:G33
【国际标准分类号】:29_120_99
【页数】:18P.;A4
【正文语种】:


【英文标准名称】:Ballscrewsforgeneraluse
【原文标准名称】:普通滚珠丝杠
【标准号】:JISB1191-1987
【标准状态】:作废
【国别】:日本
【发布日期】:1987-02-01
【实施或试行日期】:1987-02-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:MachineElements
【标准类型】:()
【标准水平】:()
【中文主题词】:滚珠(轴承部件);滚珠丝杠;螺钉
【英文主题词】:screws(bolts);balls(bearingcomponents);ballscrews
【摘要】:
【中国标准分类号】:J51
【国际标准分类号】:21_060_10
【页数】:14P;A4
【正文语种】:日语