Designation:D4979−19StandardPracticeforPhysicalDescriptionScreeningAnalysisinWaste1ThisstandardisissuedunderthefixeddesignationD4979;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticeisusedtoidentifywastesbydescribingcertainphysicalproperties.Ithasbeendevelopedasarapidbuteffectivemeansforvisuallyscreeningwasteswhenreceivedinthelaboratoryorduringcollectionatthesamplingsite.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Specifichazardandwarninginformationisgivenin8.1.6.1.3Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D5681TerminologyforWasteandWasteManagement3.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthispractice,refertoTerminologyD5681.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1screeninganalysis—apreliminaryqualitativeorsemi-quantitativetestthatisdesignedtoefficientlygivetheuserspecificinformationaboutawastethatwillaidindeterminingwasteidentification,processcompatibility,andsafetyinhan-dling.4.SummaryofPractice4.1Samplesareinspectedandthephysicalappearanceisrecorded,includingcolor,turbidity,viscosity,physicalstate,layering,andanyotherobservableattribute(forexample,texture).5.SignificanceandUse5.1Thispracticeisintendedforusebythoseinthewastemanagementindustriestoaidindescribingthephysicalchar-acteristicsofwaste.5.2Thispracticehastwouses.One...
