【英文标准名称】:StandardTestMethodforNeps,VegetableMatter,andColoredFiberinWoolTop
【原文标准名称】:羊毛条中毛结,植物性物质与有色纤维含量标准测试方法
【标准号】:ASTMD1770-1994(2006)
【标准状态】:现行
【国别】:
【发布日期】:1994
【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】:D13.13
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:纺织纤维;纤维;纺织材料;羊毛;试验
【英文主题词】:impurity;vegetablematter;wool
【摘要】:TestMethodD1770forthedeterminationofneps,vegetablematter,andcoloredfibermaybeusedfortheacceptancetestingofcommercialshipmentsofwooltopbutcautionisadvisedbecausethebetween-laboratoryprecisionisknowntobepoor.Comparativetestsasdirectedin5.1.1maybeadvisable.5.1.1IncaseofadisputearisingfromdifferencesinreportedtestresultswhenusingTestMethodD1770foracceptancetestingofcommercialshipments,thepurchaserandthesuppliershouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.TheaverageresultsfromthetwolaboratoriesshouldbecomparedusingStudentrsquo;t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforethetestingisbegun.Ifabiasisfound,eitheritscausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.1.1Thistestmethodcoversthedeterminationofthenumberofnepsandpiecesofvegetablematterbysizeclasses,andthenumberofcoloredfibers,in15gsamplesofwooltop.1.2Thistestmethodisapplicabletowooltopinanyform.Note1-Forthedeterminationofnumberofnepsperspecifiedmassofcottonsamples,refertoTestMethodD1446.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W21
【国际标准分类号】:59_060_10
【页数】:6P.;A4
【正文语种】: