> >All I know is the museum ones have been used for many years.
I have seen these these systems create ergonomic problems when they are loaded with paper. The weight of the shelves + cargo can be quite significant and the strength of the worker using the systems can be taxed if they aren't well-maintained. I would ask about this in selecting a system for chemicals, because poor chemical inventory management could lead to corrosive atmospheres over time...
Good luck.
- Ralph
Ralph Stuart, CIH, CCHO
Environmental Safety Manager
Keene State College
603 358-2859
ralph.stuart**At_Symbol_Here**keene.edu
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