To limit the probability that portable extinguishers will not meet proper standards, which could lead to portable extinguishers not performing in the way intended in a fire situation, which could lead to the fire not being suppressed or controlled, which could lead to the spread of fire to other parts of the building, which could lead to damage to the building.
To limit the probability of delays in accessing portable extinguishers in a fire situation, which could lead to the fire not being suppressed or controlled, which could lead to the spread of fire to other parts of the building, which could lead to damage to the building.