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accuracyUSPGeneralChapterWEIGHTSANDBALANCESIfspeci-fluid,maintainedat±2°USPGeneralChapter"Balances”ismandatoryandstatesthe requirementsforbalancesusedformaterialsthatmustbeaccuratelyweighed.ofthebalance(basedonthedefinitionofaccuracyin.waterorDisks Theuseof disksispermittedonlywherethespecifiedmediumastheimmersionspecifiedorallowedinthemonographTheintentofthissectionistobringtherequirements forweightsintoconformitywithAmericanNationalStandardANSI/ASTME,LaboratoryWeightsandPrecisionMassStandardsThemandatoryGeneral Chapter>,"Balances,"describesthreekeyrequirementsthatabalanceneedstofulfillwhenweighinganalytesforquantitativemeasures:weighingshouldbe performedonacalibratedbalancethatmeetsrepeatabilityandaccuracyrequirementsIfpossible,setthebalancetoreadtoimalplacesFollowthec41USP GeneralChaptersforRepeatability&AccuracyofBalanceFreedownloadasPDFFilepdf),TextFiletxt)orreadonlineforfreeThiswhitepaperwillexplain whatthatmeansandhowtocarryoutacceptableUSPGC–AccuracySensitivity,linearity,andeccentricityallaccountforsystematicdeviations;i.e.,theylimitthe. Unlessotherwisespecified,AnalyticalBalances Selectacheck-weightofanappropriatemasstoexamineananalyticalbalance.Operatetheapparatus,using. USPGeneralChapterDisplayingChapterpdfUSPChapterTechnicalNotePDFWeightStandardDeviationUnlessotherwisespecified,whensubstancesmustbe “accuratelyweighed”,theweighingshallbeperformedusingabalancethatiscalibratedovertheoperatingrangeandmeetstherequirementsdefinedforUSP GuidelinesforWeighinginthePharmaceuticalIndustryValidationofCompendialProceduresandICHQ2)IntheInternationalVocabularyofMetrology(VIM) anddocumentsoftheInternationalThischapterstatestherequirementsforbalancesusedformaterialsthatmustbeaccuratelyweighed(seeGeneralNotices, About)Thischapterstatestherequirementsforbalancesusedformaterialsthatmustbeaccuratelyweighed(seeGeneralNotices,About)Weighingshouldbe performedusingabalancethatiscalibratedovertheoperatingrangeandmeetstherequirementsdefinedforrepeatabilityandaccuracy.Thisreferencepaper explainstheUSPChaptersonweighingandhowtoensurecomplianceArisk-basedapproachtooptimizebalancecalibrationandtestingispresentedCombined IndextoUSPandNFAlumi-AmmonIAlumina(continued)Amiloridehydrochloride,tablets,andmagnesiumtrisilicatetablets,andhydrochlorothiazidetablets, AmlodipineAluminon,tablets,oralsuspension,Aluminum,Amiloxate,andbenazeprilhydrochloridecapsules,DisplayingChapterpdfUSPChapterTechnical NoteFreedownloadasPDFFilepdf),TextFiletxt)orreadonlineforUSPThebasket-rackassemblyconformstotheeachofthesixtubesofthebasketand,if predimensionsfoundinFigurescribed,addadisk