To limit the probability of delays or ineffectiveness in responding to a fire emergency, which could lead to the spread of fire beyond the point of origin, which could lead to harm to persons, including emergency responders.
To limit the probability that the escape of liquid cannot be minimized during an emergency, which could lead to the spread of liquid, which could lead to the accumulation and subsequent ignition of vapour from a nearby ignition source, which could lead to harm to persons, including emergency responders.