Designation:D5152–91StandardPracticeforWaterExtractionofResidualSolidsFromDegradedPlasticsforToxicityTesting1ThisstandardisissuedunderthefixeddesignationD5152;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeprovidesaprocedureforleachingresidualsolidsfromdegradedplastics,yieldinganaqueoussolutionwhichcanbeusedtodeterminetheaquatictoxicityofthematerialsleachedunderthespecifiedtestconditions,anddeterminethematerialsextractableundernonspecifiedtestingconditions.ThispracticemaybeusedinconjunctionwithTestMethodsD4229,E1192,E1295orothercurrentlyacceptedtoxicitytestmethods(seeOECDGuideline203or40FR797).1.2Thispracticeprovidesfortheshakingofaknownweightofphotodegradedplasticwithwaterofspecifiedcom-position(seeTerminologyD1129)andtheseparationoftheaqueousphase(extract)foranalysis.Itdescribesthecollectionofsamplesfrombiodegradationandchemodegradationteststobeusedforfurtheranalyses.Intheeventthataparticularsampledoesnotpassthetoxicitytest,chemicalcharacteriza-tionofthedegradationproductscanbeperformedontheaqueousextracttodeterminethesourceofthetoxicity.Thedescriptionoftheperformanceoftheseanalysesisbeyondthescopeofthispractice.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:D1129TerminologyRelatingtoWater2D1293TestMethodsforpHofWater2D4229PracticeforConductingStaticAcuteToxicityTestsonWastewaterwithDaphnia3E729GuideforConductingAcuteToxicityTestswithFishes,MacroinvertebratesandAmphibians3E1192GuideforConductingAcuteToxicityTestsonAqueousEffluentswithFishes,MacroinvertebratesandAmphibians3E1295GuideforConductingThree-Broo...
