A Material Safety Data Sheet, or MSDS, is a safety staple of any place of work with chemical hazards. Really, they are "oh crap" documents that you can look at to figure out how to handle a chemical spill or whatnot, though the best bet is to read what to do before something happens. I like this sign for an MSDS station, the place where you keep all of your MSDS files in binders or whatever.
