Designation:D6567−18StandardTestMethodforMeasuringtheLightPenetrationofaRolledErosionControlProduct(RECP)1ThisstandardisissuedunderthefixeddesignationD6567;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversmeasuringtheamountofincandescentlightthatpenetratesthrougharollederosioncontrolproduct.1.2ThistestmethoddoesnotprovidelightpenetrationvaluesforRECPsundervariablenormalsunandsoilcondi-tions.Thistestmethoddeterminesnominallightpenetration.1.3ThistestmethodisnottobeusedtodetermineapercentgroundcovervalueforRECPs,astheamountoflightpenetrationmayincludelightpassingthroughtranslucentmaterialorreflectingoffsurfaces.1.4Thevaluesstatedasapercentagearetoberegardedasthestandard.Thevaluesprovidedinfootcandlesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD4354PracticeforSamplingofGeosyntheticsandRolledErosionControlProducts(RECPs)forTestingD4439TerminologyforGeosyntheticsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.Terminology3.1Definitions:3.1.1lightpenetration,n—thepercentoflightincidentonthefrontsurfaceofamaterialthatisemittedfromthebacksurfaceofthematerial.3...
