【英文标准名称】:StandardTestMethodforElongationofNarrowElasticFabrics(Static-LoadTesting)
【原文标准名称】:窄幅弹性织物伸长的标准试验方法(静态负载试验)
【标准号】:ASTMD5278-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D13.59
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;纺织试验;织物
【英文主题词】:elasticfabric;elongation;staticload
【摘要】:Thistestmethodisconsideredsatisfactoryforacceptancetestingofcommercialshipmentsofnarrowelasticfabricsbecausethetestmethodisusedinthetradeforacceptancetesting.5.1.1Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepartiesshouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Theaverageresultsfromthetwolaboratoriesshouldbecomparedusingstudent’t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingisbegun.Ifbiasisfound,eitherthecausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.Thistestmethodspecifiestheuseofastaticloadapparatus.Usersofthistestmethodarecautionedthatelongationtestdataobtainedusingthistestmethodarenotcomparabletoelongationtestdataobtainedusingeitherconstant-rate-of-extension(CRE)orconstant-rate-of-loading(CRL)typetensiletestingmachines.1.1Thistestmethoddeterminestheelongationcharacteristicsofnarrowelasticfabricsmadefromnaturalorman-madeelastomers,eitheraloneorincombinationwithothertextilefibers,whentestedwithastaticloadtestingprocedurebeforeorafterlaundering.Note1Fordeterminationofsimilarcharacteristicsusingtheconstant-rate-of-extension(CRE)typetensiletestingmachine,refertoTestMethodD4964.Note2Fordeterminationofsimilarcharacteristicsusingtheconstant-rate-ofload(CRL)typetensiletestingmachine,refertoTestMethodD1775.1.2Theuseofthistestmethodrequirestheselectionof,ormutualagreementupon,theeffectivestaticloadatwhichthetestresultswillbedetermined.1.3LaunderingproceduresusedwillbethosespecifiedinTestMethodAATCC135for3washinganddryingcycles.1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecifications.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_30
【页数】:3P.;A4
【正文语种】: