Dave Arnold at www.cookingissues.com posted about this recently. Their protocol for transferring the dewars includes letting the tank take the elevator alone. O

Dave Arnold at www.cookingissues.com posted about this recently. Their protocol for transferring the dewars includes letting the tank take the elevator alone. One particular time a student had set the dewar down a little hard, and the pressure had caused the tank to vent a minute later in the elevator, and blow a hole in the ceiling of the elevator. Had anyone ridden with it, they likely would have asphyxiated edit: Link: http://www.cookingissues.com/2010/03/12/ka-boom-liquid-nitrogen-safety-rules-are-there-for-a-reason/ http://www.cookingissues.com/2010/03/12/ka-boom-liquid-nitro...