Designation:D4193−08(Reapproved2013)´1StandardTestMethodforThiocyanateinWater1ThisstandardisissuedunderthefixeddesignationD4193;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—WarningnoteswereeditoriallyupdatedthroughoutinJune2013.1.Scope1.1Thistestmethodcoversthequantitativecolorimetriclaboratorymeasurementofdissolvedthiocyanateinwater,wastewater,andsalinewaterintherangefrom0.1to2.0mg/L.Forhigherconcentrations,useanaliquotfromthedilutedsample.1.1.1Validation—Thistestmethodwasvalidatedovertherangeof0.07to1.42mg/L.Thistestmethodwasvalidatedatninelaboratoriesatfourlevels.Thistestmethodmaybevalidforreportingresultsdowntolowerlevelsasvalidatedinindividualuserlaboratories.1.1.2Application—Thistestmethodhasbeenvalidatedinreagentwater,TypeII,inmultiplelaboratoriesand7naturalwaters,1laboratoryeffluent,1steelmilleffluent,and2dechlorinatedandtreatedsanitaryeffluentsinsinglelaborato-ries.Itistheuser’sresponsibilitytoassurethevalidityofthetestmethodonanyuntestedmatrices.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1192GuideforEquipmentforSamplingWaterandSteaminClosedConduits(Withdrawn2003)3D1193SpecificationforReagentWaterD2036TestMethodsforCyanidesinWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD3856GuideforManagementSystemsinLaboratoriesEngagedinAnalysis...
