5.5.2.2.(1)

Intent 1:

To limit the probability that a fire in a laboratory will spread to other parts of the building, which could lead to damage to the building.

Intent 2:

To limit the probability that the laboratory room fire separation will have insufficient resistance to fire, which could lead to the premature failure of the fire separation in a fire within the room, which could lead to the spread of the fire from the room to other parts of the building, which could lead to damage to the building.