Contractor is proposing using a single head system using IFC 903.3.8 Limited Area Sprinkler Systems to satisfy the sprinkler requirement from IFC 5306.2.2 One-Hour Interior Room.
Oxygen cylinder storage at vet clinic, "120 gal" tanks, total of "1644 cu. ft.".
Section 903.3.8 only allows LH or OH1 hazards. It was originally proposed as EH1, revised to OH1 but has not substantiated with code. OH2 comes up in multiple locations (NFPA 13-19 220.127.116.11, NFPA 400 18.104.22.168).
Is there a special provision, or some other way OH1 is appropriate here?
At this point the only solution appears to be relocating the room to an exterior wall which allows a "single head for cooling", which seems to not require any specific density, or to provide a full building system with OH2 in the oxygen room.
Thanks for helping me sort this out.
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