A UL firestop assembly rated for one and two hours under both F and T criteria. Section A-A indicates the spatial relationship of the penetration components and the surrounding wall assembly. Callouts designate specific rated items and the UL system number W-L-0012 by 3M Company.
SECTION A-A T RATING - 1 AND 2 HR (SEE ITEMS 1 & 2) F RATING - 1 AND 2 HR (SEE ITEMS 1 & 2) A A 1A 2 1B UL SYSTEM NO. W-L-0012 (3M COMPANY)
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