Designation:D8231−19StandardPracticefortheUseofaLowVoltageElectronicScanningSystemforDetectingandLocatingBreachesinRoofingandWaterproofingMembranes1ThisstandardisissuedunderthefixeddesignationD8231;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticedescribesstandardproceduresforusinganelectronicscanningsystemtolocatemembranebreachesonbothhorizontalandverticalsurfacestolocatepotentialleaksinexposedroofingandwaterproofingmembranes.1.2Thispracticeaddressestheneedforadetailedtechnicaldescriptionofascanningmethodandproceduresthatareusedtotestandverifytheintegrityofmembranes.1.3Thispracticeisnotintendedtoreplacevisualorothermethodsofinspection.Itistobeusedinconjunctionwithothermethodsofroofinspectionwhenspecified.1.4Thispracticerequiresthatthedetectionandlocationequipment,procedures,andsurveyparametersusedarecali-bratedtomeetestablishedminimumleakdetectionsensitivity.Thedetectionsensitivitycalibrationmustbeverifiedonaregularbasisusingthemanufacturer’sprocedurestoassuremaximumconfidenceintheresults.1.5Scanningsurveyscanbeusedonmembranesinstalledonroofs,plazadecks,pools,waterfeatures,coveredreservoirs,andotherroofingandwaterproofingapplications.1.6Thispracticeisapplicableformembranesmadeofelectricallyinsulatingmaterialsandisusedoncertainmoder-atelyconductivemembranes(seeTestMethodD4496).1.7Thispracticeprovidesadescriptionofthescanningmethodandequipmentforlocatingmembranebreachesusingelectricconductanceandisintendedtobeusedinconjunctionwiththemanufacturer’sinstructionsfortheproperoperationanduseoftheequipment.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimit...
