1. Have you ever used perchloric acid in this lab? Yes No
   
   
2. Have you used any chemical that would cause a hazardous condition in the fume hood duct? Yes No
   
   
3. If yes, has perchloric acid been used at concentrations greater than 72%?
   Yes No
   
   
4. Has perchloric acid been used at temperatures greater than ambient?
   Yes No
   
   
5. Have you ever had a spill involving perchloric acid? Yes No
   
   

Last Modified 11.30.2004
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