Designation:F1094−87(Reapproved2012)StandardTestMethodsforMicrobiologicalMonitoringofWaterUsedforProcessingElectronandMicroelectronicDevicesbyDirectPressureTapSamplingValveandbythePresterilizedPlasticBagMethod1ThisstandardisissuedunderthefixeddesignationF1094;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoversamplingandanalysisofhighpuritywaterfromwaterpurificationsystemsandwatertrans-missionsystemsbythedirectsamplingtapandfiltrationofthesamplecollectedinthebag.Thesetestmethodscoverboththesamplingofwaterlinesandthesubsequentmicrobiologicalanalysisofthesamplebytheculturetechnique.Themicroor-ganismsrecoveredfromthewatersamplesandcountedonthefiltersincludebothaerobesandfacultativeanaerobes.1.2Threemethodsaredescribedasfollows:SectionsTestMethodA—SampleTap—DirectFiltration6to8TestMethodB—PresterilizedPlasticBagTechnique9to12TestMethodB2—DipStripTechnique2/PresterilizedPlasticBag1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse2.2.ReferencedDocuments2.1ASTMStandards:3D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterF60TestMethodforDetectionandEnumerationofMicro-biologicalContaminantsinWaterUsedforProcessingElectronandMicroelectronicDevices(Withdrawn1991)4F488TestMethodforOn-SiteScreeningofHeterotrophicBacteriainWater(Withdrawn2005)43.Terminology3.1Definitions:3.1.1totalbacteriacount—numberofviableheterotrophicbacteriacapableofgrowingundertestconditionsspecified.3.1.1.1Discussion—Totalbacteriacountisthegeneraltermforheterotrophicplatecount,nowcommonlyused.Hetero-trophicbacteriaarethosemicroorganismsthatcannotuseCO2forfood.The...
