No roof sprinklers

[cda]

http://www.airproducts.com/~/media/Files/PDF/industries/healthcare-medical-gases-safe-reliable-supply-brochure.pdf

 

[Dr. J]

The correct code reference is NFPA 55 Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks. This is what hospitals follow for liquid oxygen containers much larger than 1000 L, although the standard is not limited to hospitals. 1000 L of liquid O2 is approximately 400 liquid gallons, or 46,000 cu ft of gas at STP. The requirements for bulk cryogenic O2 start at 20,000 cu ft of gas at STP.

Everyone in agreement this is not a building, right? It is a screened outdoor enclosure.

Do I understand there screen walls consist of 4 solid enclosing walls? If so, fail right there. NFPA 55 prohibits cryogenic fluids being in an enclosed “courtyard”. It must be open on at least one side (like the picture CDA linked to). If more than 2 sides, the tank must be separated from 2 of the walls by at least the height of the walls. CDA’s picture appears to comply, note that the walls are not tight up to the tank.

There are further siting regulations within NFPA 55 that need to be followed.

 

[cda]

The correct code reference is NFPA 55 Standard for the Storage, Use, and Handling of Compressed Gases and Cryogenic Fluids in Portable and Stationary Containers, Cylinders, and Tanks. This is what hospitals follow for liquid oxygen containers much larger than 1000 L, although the standard is not limited to hospitals. 1000 L of liquid O2 is approximately 400 liquid gallons, or 46,000 cu ft of gas at STP. The requirements for bulk cryogenic O2 start at 20,000 cu ft of gas at STP. Everyone in agreement this is not a building, right? It is a screened outdoor enclosure.

Do I understand there screen walls consist of 4 solid enclosing walls? If so, fail right there. NFPA 55 prohibits cryogenic fluids being in an enclosed “courtyard”. It must be open on at least one side (like the picture CDA linked to). If more than 2 sides, the tank must be separated from 2 of the walls by at least the height of the walls. CDA’s picture appears to comply, note that the walls are not tight up to the tank.

There are further siting regulations within NFPA 55 that need to be followed.

finally saw the NFPA 55 reference

I think the main thing was why it was not a "H" occupancy per the I codes

 

[Francis Vineyard]

Clarify does the amount of wall openings apply without a roof? What did Franks question about the ventilation at the bottom of the wall refer to?

[F] 414.6.1.1 Walls. Walls shall not obstruct more than one side of the structure.

Exception: Walls shall be permitted to obstruct portions of multiple sides of the structure, provided that the obstructed area does not exceed 25 percent of the structure's perimeter.