【英文标准名称】:StandardTestMethodforDeterminingPressureDecayofInflatableRestraintCushions
【原文标准名称】:测定充气靠垫压力下降的标准试验方法
【标准号】:ASTMD7559/D7559M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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;inflatablerestraint;pressuredecay;Airbagmaterials/applications;Inflatablerestraints;Pressuredecay
【摘要】:Thistestmethodmaybeusedforproductdevelopmentanddesign,productionvalidation,manufacturingprocesscontrol,lotacceptance,orforacombinationthereof.Therateofinflationinthismethoddoesnotattempttomimicthatofanactualcushiondeployment,norisitintendedtosubjectthecushiontothedynamicloads,stress,andtemperaturesduringsuchanevent.Itisalsorecognizedthatthecompressedairusedforthistestsmaynotleakthroughthecushionatthesamerateasthegasormixtureofgassestypicallyusedincushioninflators.Ratherthismethodisintendedtogivearelativeindicationofthepressureholdingabilityofthecushion.Theinternalvolumeandinternaldesignofcushionsvariesgreatly.Thistestmethodismostusefulwhencomparingdatafromcushionsofthesamedesignandvolume.Thistestmethoddoesnotprovideanydataconcerningthevolumeofgasleakingfromthebag.Atcertainhigherlevelsoftheinitialinternalpressure,thistestmethodwillirreversiblydamagethecushionandchangeitsleakagepropertiesforfuturetestingorforcommercialuse.Thedamagetothebagisdependentonthedesignorshapeofaspecificbagandthetypeofcoatingapplied.Itistheresponsibilityofthesupplierand/orpurchasertodetermineiftheparametersunderwhichacushionistestedwillbedestructiveandrenderthecushionunfitforfutureuseWithinthelimitsofvarianceexpressedinSection12,thistestmethodisusefulfordesignandproductionvalidationandmaybesuitableforincorporationinacushionspecificationorforlotacceptancetestingofcommercialshipments.1.1Thistestmethodisintendedtodeterminetheabilityofaninflatablerestraintcushiontoretainairpressureatelevatedpressuresforaspecifiedtimeinterval.1.2Proceduresandapparatusotherthanthosestatedinthistestmethodmaybeusedbyagreementofpurchaserandsupplier,providedthespecificdeviationsfromthestandardacknowledgedinthereport.1.3Theresultsofthistestmethodshouldnotbeusedtopredicttheactualinternalpressuredecayofacushionduringadeployment.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:T26
【国际标准分类号】:43_040_80
【页数】:5P.;A4
【正文语种】: