Designation:D6104−97(Reapproved2011)StandardPracticeforDeterminingthePerformanceofOil/WaterSeparatorsSubjectedtoSurfaceRun-Off1ThisstandardisissuedunderthefixeddesignationD6104;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstheprocedure,anynecessaryre-latedapparatus,andthesamplingtechniquetobeusedindeterminingtheperformancecharacteristicsofoil/watersepa-ratorssubjectedtocontaminatedrun-off.1.2Thispracticedoesnotaddressthedeterminationoftheperformancecharacteristicsofanoil/waterseparatorsubjectedtothesuddenreleaseofarelativelylargequantityofhydro-carbonsthatmayappear,inpureformorathighconcentration,intheinfluenttotheseparator.Inthiscase,refertoPracticeD6157.1.3Thispracticedoesnotaddressthedeterminationoftheperformancecharacteristicsofanoil/waterseparatorsubjectedtoamechanicallyemulsifiedinfluentsuchasprovidedbyapump.1.4Thispracticedoesnotinvestigatetheabilityoftheseparatortohandledebrisorsuspendedsolids,thatis,gritortreeleaves.1.5Whiletheeffluentmaymeetcoderequirementsfortotaloilandgreasecontent,thispracticedoesnotaddressthepresenceofsolubleorganics,i.e.,Benzene,Toluene,Ethyl-benzeneandXylene(BTEX’s)whichmaybedetectedintheeffluent.Italsodoesnotmakeanyprovisionsfortheeffectsofdetergents,surfactants,soaps,oranywatersolublematter(thatis,salts),oranyportionofanessentiallyinsolublematterthatmaybefoundinsolutiononseparation.(Effectsofcertainwatersolublechemicalsorsolidsmaybeinvestigatedbyaddingthemtothewateratpredeterminedconstantconcentra-tions.)1.6Inordertoestimatetheeffectofwatertemperatureontheperformanceoftheseparator,thetestsdescribedinthispracticemustbeperformedattwowatertemperatures.Theselectedtemperaturesmustbeatleast10°C(18°F)apart,withthetemperaturerangingfromaminimumof0°C(32°F)toamaximumof50°C(122°F).1.7Thispracticed...
