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NZS 4520 PDF
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Fire-resistant doorsets
| Published by | Publication Date | Number of Pages |
| NZS | 11/30/2010 | 44 |
NZS 4520 – Fire-resistant doorsets
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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