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9.9.8.5.(1) | Application | Intent |
| OS1 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Maximum number of exits from floor areas above or below the first
storey permitted to lead through a lobby, where [see Sentences 9.9.8.5.(2) to (4)]: This applies to buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9].
Application 2: This also applies to certain mezzanines,
as stated in Sentence 9.9.8.6.(1).
Exceptions:
except:
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| Intent | Intent 1: To limit the probability that a fire that has spread into
a lobby from an adjacent floor area will lead to untenable conditions in the
exit, which could lead to delays in the evacuation or movement of persons
to a safe place, which could lead to harm to persons. Intent 2: To supersede the requirements of Sentence 9.9.4.2.(1),
which would otherwise require the exit to be separated from adjacent floor
areas by a fire separation having a minimum fire-resistance rating.
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