【英文标准名称】:StandardPracticeforCoreSamplingofRawWoolinPackagesforDeterminationofPercentageofCleanWoolFiberPresent
【原文标准名称】:为测定净毛纤维百分率从成包原毛中心取样的标准规程
【标准号】:ASTMD1060-1996(2005)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:(Practice)
【标准水平】:()
【中文主题词】:羊毛;纱;测定;纺织纤维;纺织试验;纤维;羊毛纤维;纺织材料;抽样方法
【英文主题词】:sampling;woolcontent
【摘要】:Coresamplingiswidelyaccepted,whenapplicable,forobtainingalaboratorysamplerepresentativeofthecleanwoolfiberpresentinalotofpackagedrawwool.Ifthewoolissolooselypackedthatacorecannotbecut,orifitissohighlycompressedthatthesamplingtoolcannotreadilypenetrateintothepackagetotherequireddepthandintherequireddirection,coresamplingisnotapplicable.Thedensityofwoolinmosttypesofcommercialpackagesissuitableforsamplingbythismethod.Theproceduredescribedinthispracticeisadaptedtotheapplicationofstatisticalmethodsforestimatingthesizeofsamplerequiredtoachievearequiredlevelofsampleprecisionatminimumcost.Note18212;Thebasicsamplingequipment,operatingprocedure,andstatisticalapproachusedinthispracticehavebeenadaptedforsamplinglotsofwoolforthedeterminationofotherpropertiesthatarenotaffectedbyboring,suchasaveragefiberdiameter,andforsamplinglotsofotherbulkfibersinpackages.(Metricequivalentsmaybecalculatedbymultiplyinginchesby25.4toobtainequivalentdimensionsinmillimetres.)FIG.1SmallDiameterWoolSamplingTool(UnitedStatesCustomsService)1.1Thispracticeforsamplingcoversaprocedureforobtainingsamplesfromlotsofgrease,pulled,orscouredwoolorrelatedanimalfibersinbalesorbagsforthedeterminationofthecleanwoolfiberpresentbyaproceduresimilartothatdescribedinTestMethodD584.1.2Thepracticeprovidesadescriptionofsuitablecoresamplingequipment,thesamplingprocedure,andthemethodfordeterminingthenumberofpackagestobeboredandthenumberofcorestobetakenfromeachsampledpackage.1.3Reliableestimatesaregivenforthestandarddeviationofthepercentagecleanwoolfiberpresentbetweenpackagesandwithinpackagesforlotsofmanytypesofrawwool.1.4Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIunitsareinparentheses.Thevaluesineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththispractice.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W20
【国际标准分类号】:59_060_10
【页数】:9P.;A4
【正文语种】: