Designation:D5131−90(Reapproved2014)StandardGuideforRecordKeepingforElectrodialysis/ElectrodialysisReversalSystems1ThisstandardisissuedunderthefixeddesignationD5131;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversproceduresforwelldefinedrecordkeepingforelectrodialysis(ED)andelectrodialysisreversal(EDR)systems.1.2ThisguideincludesastartupreportandrecordkeepingforED/EDRandpretreatmentoperatingandmaintenancedata.1.3Thisguideisapplicabletoallwatersbutisnotneces-sarilycompleteforwastewaters.1.4Thisisaguideonlyandshouldnotbeconstruedasacompletedelineationofallrecordkeepingrequiredforaspecificapplication.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1125TestMethodsforElectricalConductivityandResis-tivityofWaterD1129TerminologyRelatingtoWaterD1253TestMethodforResidualChlorineinWaterD1889TestMethodforTurbidityofWater(Withdrawn2007)3D4189TestMethodforSiltDensityIndex(SDI)ofWaterD5091GuideforWaterAnalysisforElectrodialysis/ElectrodialysisReversalApplications3.Terminology3.1Definitions—FordefinitionsoftermsusedinthisguiderefertoTerminologyD1129.4.SignificanceandUse4.1ProperoperationandmaintenanceofanED/EDRsys-temandanyassociatedpretreatmentsystemarekeyfactorsinobtainingoptimumperformance.ThisguideprovidesthenecessaryinputdatafortheevaluationoftheperformanceoftheED/EDRsystem,thepretreatmentsystem,andtheme-chanicalequipmentintheplant.4.2Thisguideisforgeneralguidanceonlyandmustnotbeusedinplaceoftheoperatingmanualsandmanufacturer’srecommendationsforspecificequipmentoraspecificapplica-tion.4.3Sitedependent,equipment...
