【英文标准名称】:StandardPracticeforEvaluatingtheOverpressurizationCharacteristicsofInflatableRestraintCushions
【原文标准名称】:可充气缓冲垫的过压特性评定的标准规范
【标准号】:ASTMD5807-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D13.20
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:airbag;bagburst;cushion;inflatablerestraint;rupture;Airbagmaterials/applications;Bagburst;Cushion;Inflatablerestraints;Overpressurization;Rupture/rupturestrength
【摘要】:Thispracticeisintendedtobeageneralguidelineforrepetitivetesting,safeconductoftests,andaccuratedatacollectionforinflatablerestraints.Cushionoverpressurizationtestingmaybeusedfordesignandproductionvalidation,formanufacturingprocesscontrol,forlotacceptance,orforacombinationthereof.Thispracticeconstitutestheconditions,apparatus,andproceduresbywhichinflatablerestraintsarecommonlytestedforcushionoverpressurization.Itisintendedtobeusedasaguidelineinestablishingacushionspecificationorequivalentdocument.Thepracticesinthespecificationmaydeviatefromthepracticesdescribedhereinwhen(basedonexperience)considerationsofequipment,cushiondesign,orotherfactorsdictateotherwise.Thereexistsalargevarietyincushionconfigurationsandequipmentdesigns,obviatingastandardtestmethodforcushionoverpressurization.Therefore,acushionspecificationshouldincorporatethepracticesstatedhereinwhendescribingatestmethodfortestingaspecificcushiongeometryandapparatusdesign.Toensureaccuracyandrepeatability,thespecificationshouldalsoaddressprecisionandbiasinamannerconsistentwithASTMprescribedproceduresandconsistentwiththeparticularcushiongeometry,equipmentinuse,andtestprocedures.Sourcesofvariationincushionoverpressurizationtestingproceduresincludeorificesize,attachmentfixture,sensorlocation,methodofattachment,presenceorabsenceofinternalbladder,accumulatorsizeandpressure,transducertypeandlocation,thepresenceorabsenceoftethers,presenceorabsenceofventplugs,andtheaccuracyoftimingdevicesandpressuresensors.Allsourcesofequipmentandproceduralvariationshouldbeaddressedintheapplicablespecification.Inaccordancewiththeapplicablespecification,cushionsmaybepressurizedwithoutburstingtodeterminetheirresistancetoafixedlevelofhighinternalpressure,ortheymaybesubjectedtoincreasingpressurestodeterminetheirultimateburstingstrength.1.1Thispracticecoverstheproceduresandconditionsusedtoevaluatethephysicalperformanceofinflatablerestraintcushionsduringandafteroverpressurizationtestingatelevatedpressurescapableofcausingcushionburstingusingairpressurizationequipment.1.2Thephysicalperformancecharacteristicsthatmaybeobtainedinconjunctionwiththispracticeareinternalcushionpressuresdeterminedbyinstrumentationandmaterialintegrity,determinedbyvisualinspection.1.3Thispracticeisapplicabletoallinflatablerestraintcushions.1.4Proceduresandapparatusotherthanthosestatedinthispracticemaybeusedbyagreementbetweenpurchaserandsupplierwiththespecificdeviationsfromthispracticeacknowledgedinthereport.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SeeSection8forspecifichazardinformation.
【中国标准分类号】:T26
【国际标准分类号】:43_040_80
【页数】:3P.;A4
【正文语种】:英语


【英文标准名称】:ULStandardforSafetyControlCentersforChangingMessageTypeElectricSignsFourthEdition;ReprintwithRevisionsThroughandIncludingMay18,2006
【原文标准名称】:变换信息型电子信号控制中心
【标准号】:UL1433-2003
【标准状态】:作废
【国别】:美国
【发布日期】:2003-08-25
【实施或试行日期】:
【发布单位】:美国保险商实验所(US-UL)
【起草单位】:UL
【标准类型】:()
【标准水平】:()
【中文主题词】:控制电缆;信号灯;照明系统;监视器;信号装置;电缆;电气设备
【英文主题词】:lightingsystems;cables;signallighting;monitors;controlcables;electricalequipment;signaldevices
【摘要】:CoverscontrolcentersforchangingmessagetypeelectricsignsforuseinaccordancewithANSI/NFPA70-1984,NationalElectricalCode.Thesecontrolcentersareforindoororoutdooruse,andareeitherprovidedwithanenclosureorareforinstallationwithintheenclosureofasign.Interconnectingcables,otherthanlowvoltagecontrolcables,arealsocoveredbythisstandard
【中国标准分类号】:L04
【国际标准分类号】:29_140_99
【页数】:80P.;A4
【正文语种】:英语