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【英文标准名称】:StandardPracticeforInclusionofPrecisionStatementVariationinSpecificationLimits
【原文标准名称】:在规范限定内严密语句变更范围的标准实施规程
【标准号】:ASTMD6607-2000(2005)
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D04.94
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:Eachtestmethodhasalimitedprecision.Evenifatestisperformedascarefullyandascorrectlyaspossibleonamaterialwhichisashomogeneousascanbeobtained,thetestwillstillvaryfromonetoanother.Awidelyusedmeasureofthevariationofthetestresultsfromatestmethodisthestandarddeviation(x03C3;).InanASTMstandardtest,thestandarddeviationofthetestmethodcanbefoundinthePrecisionandBiasstatementforthetest.Thex201C;BlueBook,x201D;FormandStyleforASTMStandards,requiresthatalltestmethodsincludePrecisionandBiasstatements.PracticeC670andPracticeC802provideguidancefordeterminationofthesevalues.Iftheprecisionofatestmethodislowandtheprecisionofthetesthasnotbeenproperlyconsideredinamaterialspecification,auniformmaterialwiththerightqualitymaystillberejectedmostofthetimebecauseofthewidevariationofthetestresults.Inordertohaverationalspecificationlimits,theprecisionofthetestusedshouldbeproperlyincludedinaspecification.Thispracticeprovidesaguidelineforproperinclusionofprecisionofthetestmethodinarationalspecification.1.1Thispracticecoversamethodofdeterminingrationalspecificationlimitsbyinclusionoftheprecisionofthetestmethodusedinthespecification.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G04
【国际标准分类号】:19_020
【页数】:3P.;A4
【正文语种】: