作者:标准资料网 时间:2024-05-18 18:04:41   浏览:9907   来源:标准资料网

【英文标准名称】:StandardTestMethodsforTireCords,TireCordFabrics,andIndustrialFilamentYarnsMadefromManufacturedOrganic-BaseFibers
【原文标准名称】:由人造有机基纤维制成的轮胎帘布、帘帆布以及工业长丝纱的标准试验方法
【标准号】:ASTMD885/D885M-2010a
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D13.19
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:commercialmass;dippickup;industrialyarn;lineardensity;manufacturedfibers;moistureregain;shrinkage;tensileproperties/tests;tirecord;tirefabric;twist;Breakingstrength/tenacity--textilefabrics/fibers;Commercialmass;Density--
【摘要】:Theproceduresinthesetestmethodsshouldbeusedwithcautionforacceptanceofcommercialshipmentsowingtotheabsenceoffactualinformationonthebetween-laboratoryprecisionofmanyofthetestproceduresincludedinthesetestmethods.Itisrecommendedthatanyprogramofacceptancetestingbeprecededbyaninterlaboratorycheckinthelaboratoryofthepurchaserandthelaboratoryofthesupplieronreplicatespecimensofthematerialstobetestedforeachproperty(orproperties)tobeevaluated.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestsshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,testsamplesshouldbeusedthatareashomogeneousaspossible,thataredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andthatarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Othermaterialswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Thesignificanceanduseofparticularpropertiesarediscussedintheappropriatesectionsofspecifictestmethods.1.1Thesetestmethodscoverthetestingofindustrialfilamentyarnsmadewhollyofmanufacturedorganic-basefibers,cordstwistedfromsuchyarns,fabricswovenfromsuchcords,andproductsthataremadespecificallyforuseinthemanufactureofpneumatictires.Theymaybeappliedtosimilaryarnsandcordsusedforreinforcingotherrubbergoodsandforotherindustrialapplications.Thetestmethodsapplytonylon,polyester,andrayonyarnsandtirecordstwistedfromsuchyarnsandtofabricsmadefromsuchcords.Theyarnorcordmaybewoundoncones,tubes,bobbins,spools,orbeams;maybewovenintofabric;ormaybeinsomeotherform.Themethodsincludetestingprocedureonlyandincludenospecificationsortolerances.1.2Noprocedureisincludedforthedeterminationoffatigueresistanceofcord,butseveralcommonlyusedproceduresforthemeasurementoffatigueresistanceofcordsinrubberwerepublishedintheappendixofthesetestmethodsinthe1967AnnualBookofASTMStandards,Part24,andinearlierissuesofTestMethodsD885.1.3Thesectionsonx201C;GrowthofConditionedYarnsandCords,x201D;x201C;PropertiesofYarnsandCordsatElevatedTemperature,x201D;andx201C;PropertiesofWetYarnsandCordsx201D;havebeenmovedtoAppendixX1-AppendixX3asnon-mandatoryinformationalitemsbecauseoftheirverylimitedusebytheindustryandbecauseprecisionandbiasstatementsarenotincluded.1.4Thisstandardincludesthefollowingsections:
【中国标准分类号】:W50
【国际标准分类号】:83_160_01
【页数】:31P.;A4
【正文语种】:英语