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3.1.8.13.(1)
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Positive latching mechanisms for swing-type doors in fire separations in buildings described in Sentence 1.3.3.2.(1) of Division A.
Exceptions: 
except as stated in Article 3.3.3.5., which applies to hospitals and nursing homes.
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Intent
Intent 1: 
To limit the probability that pressure exerted during a fire will force a door open, which could lead to the spread of fire from one fire compartment to another fire compartment, which could lead to harm to persons in the other fire compartment.
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