foam sprinkler system inside chemical warehouse

[safemido]

we have got a chemical warehouse of about 30m*90m*6m size
we have already water sprinkler system and we want to modify it to be foam sprinkler system and our fire pump of 500 gpm capacity, ithink then it will undergoes NFPA 13.
Could it be done & how ?
& if not what is alternatives to achieve the code?

 

[stookeyfpe]

I sense a lack of an ability to communicate in English. With that said, do you own a copy of NFPA 30 and understand the implications of packaging and how it impacts the sprinkler design?