【英文标准名称】:StandardPracticeforDeterminationofaPooledLimitofQuantitation
【原文标准名称】:定量的沉积限值测定的标准实施规程
【标准号】:ASTMD6259-1998(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:1998
【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】:D02.94
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:limitofquantitation;pooledlimitofquantitation;Limitofquantitation(LOQ);Pooledlimitofquantitation;Standarddeviation;Statisticalmethods--petroleum
【摘要】:Inasinglelaboratory,thelimitofquantitation,LOQ,equaltotenstandarddeviationshasbeenrecommended.4AtestresultatthisLOQhasanuncertaintyofx00B1;30%atthe99%confidencelevel.Similarlyhere,asageneralestimate,thePLOQ,equaltotenrepeatabilitystandarddeviationsisrecommended.AtestresultatthisPLOQhasanuncertaintyofx00B1;30%atthe99%confidencelevel.ValuesbelowthePLOQaredeemedtobetoouncertainformeaningfuluseincommerce,orinregulatoryactivities.ManytestmethodsneverfindapplicationoutsidetheirPLOQ.However,inthequestforevermoresensitiveprocedures,itcanbecomedifficulttodistinguishananalyticalresponsefrombackgroundnoisewiththetechnologyathand.TestmethodsdefectiveindesignorpoorlyexecutedmayalsofunctionoutsidetheirPLOQ.1.1Thispracticecoversthedeterminationofalowerquantitativelimitforatestmethodforananalyte.Thedeterminedlowerlimitishereinafterreferredtoasthepooledlimitofquantitation.1.2Applicabletestmethodswillproducetestresultsgreaterthanzero.Examplesarethosetestmethodsthatmeasuresamplecomposition.
【中国标准分类号】:J04
【国际标准分类号】:19_020
【页数】:3P.;A4
【正文语种】:英语