4.11.2.1.(1)

Intent 1:

To limit the probability that fire suppression operations using portable extinguishers will be delayed or ineffective in controlling or suppressing a fire, which could lead to the spread of the fire, which could lead to damage to the building or facility.

Intent 2:

To supersede the application of Article 2.1.5.1., which would otherwise require portable extinguishers with a lower rating.