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9.9.6.5.(4)
OS3
ObjectiveOS3 Safety in Use
Attribution
Application
Application 1: 
Direction of swing of pairs of doors installed in corridors that provide access to exit in both directions, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
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Intent
Intent 1: 
To limit the probability that the lack of a convention regarding the direction of door swing will lead to delays in opening an egress door that does not open in the direction of travel in an emergency situation, 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 limit the probability that an egress door that does not open in the direction of travel will be difficult to open in an emergency situation if several persons approach it at the same time and the pressure of the group prevents the first person from pulling the door towards them, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
Intent 3: 
To limit the probability that a person falling in front of an egress door that does not open in the direction of travel in an emergency situation will obstruct the opening of the door, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
Intent 4: 
To limit the probability that a person will think the door is locked if it fails to open in the expected direction of travel in an emergency situation, which could lead to confusion, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
Intent 5: 
To limit the probability that a person will be hit by a door swinging in an unfamiliar direction, which could lead to harm to persons.
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