All of the previous comments make good points. I have seen this type of shelving in use at Yale's Peabody Museum, where they hold many many containers of specimens in preservatives. I was lucky enough to get a 'back stage' look at the inner workings of this museum a couple of years ago. As I (barely) remember, I think the room itself was designed as 'explosion proof'. I am guessing that there are lots of flammable liquids on those shelves...not sure of whether they are stored in secondary containment or not, but these are very well catalogued--location, date, weather, all sorts of things--so are quite valuable, and the room looked extremely new (not old/dusty/forgotten).

It's not exactly what you'll be storing, but you might want to give them a call. Sorry I don't have a name of anyone at the museum, but I would try going through Yale's EHS department as they provide health & safety services to the museum, where there is a LOT of cool research going on...

good luck!
Margaret