9.9.5.8.(1)

Intent 1:

To limit the probability that an explosion in a service room will spread to an exit, which could lead to harm to persons using the exit.

Intent 2:

To limit the probability that an explosion in a service room will spread to an exit, which could lead to the exit not being usable in the 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.