Designation:C1781/C1781M−15StandardTestMethodforSurfaceInfiltrationRateofPermeableUnitPavementSystems1ThisstandardisissuedunderthefixeddesignationC1781/C1781M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofthefieldsurfaceinfiltrationrateofinplacepermeableunitpavementsystemssurfacedwithsolidinterlockingconcretepavingunits,concretegridpavingunits,orclaypavingbrick.NOTE1—Forin-placeperviousconcrete,TestMethodC1701/C1701Mshouldbeused.TestMethodC1701/C1701Misfunctionallyidenticaltothisstandard,butdoesnotincludetheaddedprovisionsforpositioningandsecuringthetestringtoadiscontinuoussurface,whicharedetailedinthisstandard.Bothtestsmethodsgivecomparableresults1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thetextofthistestmethodreferencesnotesthatprovideexplanatorymaterial.Thesenotesshallnotbeconsideredasrequirementsofthetestmethod.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2C902SpecificationforPedestrianandLightTrafficPavingBrickC920SpecificationforElastomericJointSealantsC936/C936MSpecificationforSolidConcreteInterlockingPavingUnitsC1232TerminologyofMasonryC1272SpecificationforHeavyVehicularPavingBrickC1319SpecificationforConcreteGridPavingUnitsC1701/C1701MTestMethodforInfiltrationRateofInPlacePerviousConcrete2.2OtherStandards:3FederalSpecificationA-A-3110(TT-P-153...