fire water demand

[Cris-w]

hi everyone
I have a newly built steel plant building equipped with standpipe system、automatic sprinkler system, and outdoor fire hydrant system. How should I determine the maximum water demand of this building? Should I add up the water demand of each system? Especially, how to determine the water demand of the outdoor fire hydrant system?
Advance thanks！

 

[UFT12]

It should be in your fire code. See for example NFPA 1, chapter 18.

 

[Cris-w]

It should be in your fire code. See for example NFPA 1, chapter 18.

I'm very sorry. After reading NFPA 1, I feel that it doesn't clearly specify this. Maybe I just didn't notice it. Could you give me some more hints? Thank you.

 

[cdafd]

So the building is already built and in operation???!

If so why the question

 

[Cris-w]

So the building is already built and in operation???!

If so why the question

No, it's just that the construction has just started, but now we need to select the specifications of the fire pump. I haven't found any instructions on how to calculate the flow rate of the fire pump in NFPA. I'm very anxious and hope to get some help.Thanks a lot.