Chem safety clipart?

[Fourie Joubert]

Hi

Does anyone know where I can find clip-art of the chemical safety/guideline 
symbols?

Thanks!

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     _/_/_/_/  _/_/_/_/_/  Fourie Joubert           
    _/            _/     Department of Biochemistry
   _/            _/    University of Pretoria
  _/_/_/_/      _/   South Africa
 _/            _/  fourie at scientia.up.ac.za
_/      _/_/_/_/  http://suntiger.ee.up.ac.za/biodocs/home.html
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