ASTM D5822-2008 可膨胀约束座垫测定接缝强度的标准试验方法

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【英文标准名称】:StandardTestMethodforDeterminingSeamStrengthinInflatableRestraintCushions
【原文标准名称】:可膨胀约束座垫测定接缝强度的标准试验方法
【标准号】:ASTMD5822-2008
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airbag;cushion;inflatablerestraint;seamefficiency;seamfailure;seamstrength;Airbagmaterials/applications;Cushion;Inflatablerestraints;Seamstrength/integrity
【摘要】:Seamstrengthtestingisusedfordesignvalidationandforlotacceptance.Thistestmethodconstitutestheconditions,procedures,andequipmentbywhichinflatablerestraintsaretestedforseamstrengthandseamefficiency.Itisintendedtobeusedasaguidelineinestablishingawrittenpartspecificationorprint.Thespecificationoragreementofpurchaserandsuppliermaydeviatefromtheproceduresdescribedhereinwhen(basedonexperience)considerationsofequipment,cushiondesign,orotherfactorsdictateotherwise.Incasesofdisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldperformcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensfromthesamelotoffabrictobeevaluated,whichutilizealikeseamassembly(orstandardseamassembly)toachieveseaminteraction.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Ifabiasisfound,eitheritscausemustbedeterminedandcorrected,orthepurchaserandsuppliermustagreetointerpretfuturetestresultsinlightoftheknownbias.TestMethodD5822isareliabletestmethodbutprocedureswhichmayrequirespecialattentionareidentifiedintheprecisionandbiassectionofthistestmethod.1.1Thistestmethodcoversthemeasurementofseamefficiencyandthemaximumseamstrengthininflatablerestraintcushionscomposedofwovenfabricswhenaforceisappliedperpendiculartotheseam,usingagrabtest.Forevaluatingsewingthread,refertoTestMethodD204.1.2Thistestmethodisrestrictedtoseamsthatareobtainedfromaninflatablerestraintcushion.Seamsmayincludebutarenotlimitedtosewn,OPW,glued,fused(chemicallyorthermally).1.3Thistestmethodisusedwhenthemeasurementofaresistancetoaspecifiedforce,abreakingforce,aminimumelongation,oracombinationthereofarerequiredtodeterminetheseamstrength,orseamintegrityofaparticularfabricforinflatablerestraintuse.1.4Proceduresandapparatusotherthanthosestatedinthisstandardmaybeusedbyagreementbetweenpurchaserandsupplierwiththespecificdeviationsfromthestandardacknowledgedinthereport.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_01
【页数】:6P.;A4
【正文语种】:英语