Designation:D7575−11(Reapproved2017)StandardTestMethodforSolvent-FreeMembraneRecoverableOilandGreasebyInfraredDetermination1ThisstandardisissuedunderthefixeddesignationD7575;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofoilandgreaseinproducedandwastewatersamplesovertheconcen-trationrangeoutlinedinTable1thatcanbeextractedwithaninfrared-amenablemembraneandmeasuredbyinfraredtrans-missionthroughthemembrane.1.2Thistestmethoddefinesoilandgreaseinwaterasthatwhichisextractableinthistestmethodandmeasuredbyinfraredtransmission.1.3Themethoddetectionlimit(MDL)andrecommendedreportingrangearelistedinTable1.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD5847PracticeforWritingQualityControlSpecificationsforStandardTestMethodsforWaterAnalysisE168PracticesforGeneralTechniquesofInfraredQuanti-tativeAnalysisE178PracticeforDealingWithOutlyingObservations2.2EPAStandards:3EPAMethod1664RevisionA:N-HexaneExtractableMa-terial(HEM;OilandGrease)andSilicaGel...
