UL 1479:4ED 2015-06
Current
The latest, up-to-date edition.
Fire Tests of Penetration Firestops
Hardcopy
10-06-2015
These requirements cover through penetration firestops of various materials and construction that are intended for use in openings in fire resistive wall, floor or floor-ceiling assemblies, and membrane type penetration firestops of various materials and construction that are intended for use in openings in fire resistive wall assemblies.
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