Continuing in a series of strange things that I have seen while consulting at hospitals…
This room contained more than 300 cubic feet of compressed medical gases (but less than 3,000 cubic feet). And even though the picture does not show the whole room, what I wanted to capture is the fact that the oxygen cylinders in storage are not separated from combustibles by at least 20-feet, or 5-feet if the room is protected with sprinklers.
According to NFPA 99-2012, section 188.8.131.52 you must store oxidizing gases at least 5-feet from combustibles if the room is sprinklered, or at least 20-feet if the room is not.
It is obvious in this picture that some sort of plastic items are stored right next to the oxygen cylinders. Another option is to store the oxidizing gas cylinders in a fire-rated storage cabinet, then you do not need to maintain the 5-feet or 20-feet clearance.