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“ what is fire rating for residential locks ”

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Resolution: ASTM E-119 is a test standard for walls, partitions and floor or roof systems: This test standard is also used for ceramic type glasses when used as window wall and/or borrowed light frames.As...:

Fire Rating for AD and CO locks

Resolution: The AD and CO locks both have a 3 hour fire door rating. Please see URL for more info. UL Fire Rating List: