Specifies requirements for the testing, installation and maintenance of fire-resistant doorsets used to protect openings in walls and partitions, which are required to resist the passage of fire. NZS 4520 also applies to transom panels over doors, where the panels are contained within the door frame and form part of the doorset.
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NZS 4520:2010
Original price was: $252.00.$126.00Current price is: $126.00.
Fire-resistant doorsets
Standards New Zealand , 11/30/2010
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