【英文标准名称】:StandardTestMethodforStaticTestingofTubelessPneumaticTiresforRateofLossofInflationPressure
【原文标准名称】:静态测试无内胎充气轮胎的充气压力损耗率的标准试验方法
【标准号】:ASTMF1112-2006a
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:F09.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:压力降;试验方法;无管轮胎;轮胎充气压力
【英文主题词】:inflationpressure;pneumatictires;rateofloss;statictesting
【摘要】:Inflationpressureretentionisanimportantpropertyoftireperformancebecauseunderinflationcanadverselyaffecttirerollingresistance,handling,structuralintegrity,andtreadlife.Thistestmethodisusefulforresearchanddevelopmentevaluationoftheeffectsoftirecomponentformulationsandgeometryoninflationpressureretention.Testingforrateofpressurelossunderstaticconditionsispracticalbecauseofthefollowing:5.2.1Tiresinnormalusearepredominantlyatrest,and5.2.2Relativeairdiffusionratesofvarioustiresinnormalintermittentroadservicewillcorrelatewithstaticrelativerates,toafirstapproximation.Therelativeairdiffusionratesofdifferenttiresmaynotbequitethesameunderdynamicflexingaswhentestedstatically,butthedifferenceisbelievedtobesmall.Theresultsfromthistestmethodarenotsuitableforinferringtireinflationretentionundersevereserviceconditions,suchasheavycorneringorimpacts,thatmightcausesignificantairlossatthetire-rimseal.1.1Thistestmethodcoversthedeterminationoftherateofinflationpressurelossresultingfromairdiffusionthroughthestructuresoftubelesstiresunderconstanttemperatureconditions.Thetestingisdoneunderstaticconditions,thatis,nonrotating,nonloadedtires.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G41
【国际标准分类号】:83_160_01
【页数】:8P.;A4
【正文语种】:


【英文标准名称】:Low-voltagefuses-Part4:Supplementaryrequirementsforfuse-linksfortheprotectionofsemiconductordevices(IEC60269-4:2009);GermanversionEN60269-4:2009
【原文标准名称】:低压熔断器.第4部分:半导体器件保护用熔断体的补充要求
【标准号】:EN60269-4-2009
【标准状态】:现行
【国别】:
【发布日期】:2010-05
【实施或试行日期】:2010-05-01
【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】:断路容量;定义;设计;拆分范围;电气工程;电气设备;熔断体;熔断器;冲击设备;指示装置;低电压;低压熔断器;使用条件;性能;保护(装置);保护设备;额定电压;半导体器件;半导体工程;半导体保险丝;规范(验收);试验;类型;电压电源
【英文主题词】:Breakingcapacity;Definitions;Design;Disconnectingrange;Electricalengineering;Electricalequipment;Fuse-links;Fuses;Impactappliances;Indicationdevice;Lowvoltage;Low-voltagefuses;Operatingconditions;Properties;Protection;Protectiondevices;Ratedvoltage;Semiconductordevices;Semiconductorengineering;Semiconductorsafetyfuse;Specification(approval);Testing;Types;Voltagesource
【摘要】:
【中国标准分类号】:K31
【国际标准分类号】:29_120_50
【页数】:55P.;A4
【正文语种】:英语