Designation:D5702−07(Reapproved2012)StandardPracticeforFieldSamplingofCoatingFilmsforAnalysisforHeavyMetals1ThisstandardisissuedunderthefixeddesignationD5702;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversamethodtocontroltheremovalofsamplesofcoatingfilmsfromsubstratesforsubsequentlabo-ratoryanalysisforheavymetalcontentonamassbasis.Thistechniquecanbeusedinthefield,thefabricatingshop,orlaboratory.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardinformation,seeSection5,Note1andNote3.2.ReferencedDocuments2.1ASTMStandards:2D4138PracticesforMeasurementofDryFilmThicknessofProtectiveCoatingSystemsbyDestructive,Cross-SectioningMeansD6132TestMethodforNondestructiveMeasurementofDryFilmThicknessofAppliedOrganicCoatingsUsinganUltrasonicGageD7091PracticeforNondestructiveMeasurementofDryFilmThicknessofNonmagneticCoatingsAppliedtoFerrousMetalsandNonmagnetic,NonconductiveCoat-ingsAppliedtoNon-FerrousMetals3.SignificanceandUse3.1Priortobeginningaprojectthatinvolvestheremoval,cutting,grinding,orburningofpaint,itisnecessarytodetermineifthecoatingcontainshazardousmaterials,suchaslead,ascertainrequirementsforworkerandenvironmentalprotectionmayneedtobeimposed.Thepresenceandquantityofhazardousmaterialsinapaintcanbedeterminedthroughlaboratoryanalysis;however,sincetheanalysisisbasedontheweightofthespecimen,theremovalofthesamplemustbeproperlycontrolledtoimprovethereliabilityofthetestresults.Thenumberandlocationofsamplestoberemovedmustalsobedeterminedt...
