【英文标准名称】:StandardTestMethodforSealStrengthofFlexibleBarrierMaterials
【原文标准名称】:挠性隔栅材料的密封强度的标准试验方法
【标准号】:ASTMF88/F88M-2009
【标准状态】:现行
【国别】:美国
【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】:F02.20
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Flexiblebarriermaterials;Sealability;Sealstrength
【摘要】:Sealstrengthisaquantitativemeasureforuseinprocessvalidation,processcontrol,andcapability.Sealstrengthisnotonlyrelevanttoopeningforceandpackageintegrity,buttomeasuringthepackagingprocesses''abilitytoproduceconsistentseals.Sealstrengthatsomeminimumlevelisanecessarypackagerequirement,andattimesitisdesirabletolimitthestrengthofthesealtofacilitateopening.Themaximumsealforceisimportantinformation,butforsomeapplications,averageforcetoopenthesealmaybeuseful,andinthosecasesalsoshouldbereported.Aportionoftheforcemeasuredwhentestingmaterialsmaybeabendingcomponentandnotsealstrengthalone.Anumberoffixturesandtechniqueshavebeendevisedtoholdsamplesatvariousanglestothepulldirectiontocontrolthisbendingforce.Becausetheeffectofeachoftheseontestresultsisvaried,consistentuseofonetechnique(TechniqueA,TechniqueB,orTechniqueC)throughoutatestseriesisrecommended.ExamplesoffixturesandtechniquesareillustratedinFig.1.TechniqueA:Unsupported8212;Eachtailofthespecimenissecuredinopposinggripsandthesealremainsunsupportedwhilethetestisbeingconducted.TechniqueB:Supported90x00B0;(ByHand)8212;Eachtailofthespecimenissecuredinopposinggripsandthesealremainshand-supportedata90x00B0;perpendicularangletothetailswhilethetestisbeingconducted.TechniqueC:Supported180x00B0;8212;Theleastflexibletailissupportedflatagainstarigidalignmentplateheldinonegrip.Themoreflexibletailisfolded180x00B0;overthesealandisheldintheopposinggripwhilethetestisbeingconducted.FIG.1TailHoldingMethods1.1Thistestmethodcoversthemeasurementofthestrengthofsealsinflexiblebarriermaterials.1.2Thetestmaybeconductedonsealsbetweenaflexiblematerialandarigidmaterial.1.3Sealstestedinaccordancewiththistestmethodmaybefromanysource,laboratoryorcommercial.1.4Thistestmethodmeasurestheforcerequiredtoseparateateststripofmaterialcontainingtheseal.Italsoidentifiesthemodeofspecimenfailure.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A82
【国际标准分类号】:55_080;55_040
【页数】:11P.;A4
【正文语种】:英语