Underwriters LaboratoriesUL 1479Standard for Fire Tests of Penetration Firestops.Referenced across 4 Anvilfield field guides. Field guides that apply UL 1479ConcreteConcreteDrywall and gypsum board finishingConcreteStructural fireproofingPlumbingPlumbingPipe penetration firestop guideDatacenterDatacenterCabling pathways and firestop Often cited alongsideASTM E814IBCASTM E119ASTM E2174ASTM E2393NECNFPA 75TIA-568 Browse all codes and standards