Designation:D4195−08(Reapproved2014)StandardGuideforWaterAnalysisforReverseOsmosisandNanofiltrationApplication1ThisstandardisissuedunderthefixeddesignationD4195;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoverstheanalysesthatshouldbeperformedonanygivenwatersampleifreverseosmosis(RO)ornanofiltration(NF)applicationisbeingconsidered.(SeealsoTestMethodsD511,D512,D513,D516,D858,D859,D888,D1068,D1179,D1253,D1293,D1889,D3352,D3370,D3561,D3867,D4189,D4194,andD4382.)1.2Thisguideisapplicabletowatersincludingbrackishwatersandseawatersbutisnotnecessarilyapplicabletowastewaters.1.3Thisisaguideonlyandshouldnotbeconstruedasadelineationofallionsknowntoexistinwaters.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D511TestMethodsforCalciumandMagnesiumInWaterD512TestMethodsforChlorideIonInWaterD513TestMethodsforTotalandDissolvedCarbonDioxideinWaterD516TestMethodforSulfateIoninWaterD857TestMethodforAluminuminWaterD858TestMethodsforManganeseinWaterD859TestMethodforSilicainWaterD888TestMethodsforDissolvedOxygeninWaterD1068TestMethodsforIroninWaterD1129TerminologyRelatingtoWaterD1179TestMethodsforFluorideIoninWaterD1253TestMethodforResidualChlorineinWaterD1293TestMethodsforpHofWaterD1889TestMethodforTurbidityofWater(Withdrawn2007)3D2579TestMethodforTotalOrganicCarboninWater(Withdrawn2002)3D3352TestMethodforStrontiumIoninBrackishWater,Seawater,andBrinesD3370PracticesforSamplingWaterfromClosedConduitsD3561TestMethodforLithium,P...
