Designation:D5013−89(Reapproved2009)StandardPracticesforSamplingWastesfromPipesandOtherPointDischarges1ThisstandardisissuedunderthefixeddesignationD5013;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thosepracticesprovideguidanceforobtainingsamplesofwasteatdischargepointsfrompipes,sluiceways,conduits,andconveyorbelts.Thefollowingareincluded:SectionsPracticeA—LiquidorSlurryDischargesPracticeB—SolidorSemisolidDischarges7through910through121.2ThesepracticesareintendedforsituationsinwhichtherearenootherapplicableASTMsamplingmethods(seePracticesD140andD75)forthespecificindustry.1.3Thesepracticesdonotaddressflowandtime-proportionalsamplersandotherautomaticsamplingdevices.1.4Samplesaretakenfromaflowingwastestreamormovingwastemassand,therefore,aredescriptiveonlywithinacertainperiod.Thelengthoftheperiodforwhichasampleisdescriptivewilldependonthesamplingfrequencyandcom-positingscheme.1.5ItisrecommendedthatthesepracticesbeusedinconjunctionwithGuideD4687.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.SeeSection5formoreinformation.2.ReferencedDocuments2.1ASTMStandards:2D75PracticeforSamplingAggregatesD140PracticeforSamplingBituminousMaterialsD4687GuideforGeneralPlanningofWasteSamplingE882GuideforAccountabilityandQualityControlintheChemicalAnalysisLaboratory2.2OtherDocument:EPA-SW-846TestMethodsforEvaluatingSolidWaste,Physical/ChemicalMethods33.SummaryofPractices3.1Thevariabilityofthewastestreamisfirstdeterminedbasedon(1)knowledgeoftheprocessesproducingthestream,or(2)theresultsofapreliminaryinvestigationofthewastestream’svariability.Asamplingdesignisthendevelopedtha...