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3.3.2.12.(1)
ApplicationIntent
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
[F03-OS1.2]
Application
Application 1: 
Minimum fire-resistance rating of fire separations that separate library book storage rooms from the remainder of the building, where the library book storage rooms are not normally accessible to the public, and:
  • are more than 250 m2 in area, or
  • contain book stacks that:
    • are more than 10 m high, or
    • penetrate more than one floor assembly.
This applies to assembly occupancies in buildings described in Sentence 1.3.3.2.(1) of Division A.
Application 2: 
This also applies to:
  • tents and air-supported structures, as stated in Sentences 3.1.6.1.(1) and 9.10.1.2.(1), and
  • buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], as stated in Sentence 9.10.1.2.(2).
Exceptions: 
except as stated in:
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Intent
Intent 1: 
To limit the probability that fire will spread from library book storage rooms to other parts of the building, which could lead to harm to persons in other parts of the building.
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