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【英文标准名称】:StandardTestMethodsforOperabilityofZippers
【原文标准名称】:拉链可用性的试验方法
【标准号】:ASTMD2062-2003(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:2003
【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】:D13.54
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:operability;zipper;Closing;Opening/operatingforce;Operatingcharacteristics;Separatorfunctioning;Sticking(atstops);Zippers
【摘要】:Thesignificanceofspecifictestsisdiscussedintheappropriatesections.Thesetestmethodsareconsideredsatisfactoryforacceptancetestingofcommercialshipmentsofzippersbecausethemethodshavebeenusedextensivelyinthetradeforthispurpose,eventhoughcurrentestimatesofbetween-laboratoryprecisionarequitelargeinsomecases.Iftherearedifferencesofpracticalsignificancebetweenreportedtestresultsfortwolaboratories(ormore),comparativetestshouldbeperformedtodetermineifthereisastatisticalbiasbetweenthem,usingcompetentstatisticalassistance.Asaminimum,thetestsamplesshouldbeusedthatareashomogeneousaspossible,thataredrawnfromthematerialfromwhichthedisparatetestresultswereobtained,andthatarerandomlyassignedinequalnumberstoeachlaboratoryfortesting.Othermaterialswithestablishedtestvaluesmaybeusedforthispurpose.Thetestresultsfromthetwolaboratoriesshouldbecomparedusingastatisticaltestforunpaireddata,ataprobabilitylevelchosenpriortothetestingseries.Ifabiasisfound,eitheritscausemustbefoundandcorrected,orfuturetestresultsmustbeadjustedinconsiderationoftheknownbias.Themethod(s)inthestandardalongwiththoseinTestMethodsD2051,D2052,D2053,D2054,D2057,D2058,D2059,D2060,andD2061areacollectionofproventestmethods.Theycanbeusedasaidsintheevaluationofzipperswithouttheneedforathoroughknowledgeofzippers.Theenumeratedtestmethodsdonotprovidefortheevaluationofallzipperproperties.Besidesthosepropertiesmeasuredbymeansoftheenumeratedtestmethodsthereareotherpropertiesthatmaybeimportantforthesatisfactoryperformanceofazipper.Testmethodsformeasuringthosepropertieshavenotbeenpublishedeitherbecausenopracticalmethodshaveyetbeendevelopedorbecauseavalidevaluationoftheinformationresultingfromexistingunpublishedmethodsrequiresanintimateandthoroughknowledgeofzippers.FIG.1SliderStickingonBottomStop1.1Thesetestmethodscoverproceduresfordeterminingthefollowingcharacteristicsofzippers:
Sections

OpeningandClosingofZippers
14-17
SeparatorFunctioningofZippers
18-22
StickingofZippersatStops
10-13