PRIOR APPROVAL

The responsibility for approval of the acquisition and use of toxic chemical agents rests with the Laboratory Supervisor.  Some materials including toxic compressed gases, radioactive materials, and certain recombinant DNA and biohazards require prior internal (University of Kentucky) or external approval at various levels.  If there are questions concerning the need for approvals, appropriate Environmental Health and Safety departments (e.g. Radiation Safety, Biosafety, etc.) should be consulted.  Below is a list of some of the chemicals and procedures requiring prior approval.

1. 1. Respiratory protection
   2. Minors in the lab
   3. 13 Carcinogens
      • 4-Nitrobiphenyl,
      • alpha-Naphthylamine
      • Methyl Chloromethyl ether
      • 3.3’-Dichlorobenzidine and its salts
      • Bis-Chloromethyl ether
      • beta-Naphthylamine
      • Benzidine
      • 4-Aminodiphenyl
      • Ethyleneimine
      • beta-Propiolactone
      • 2-acetylaminofluorene
      • 4-Dimehtylaminoazo-benzene
      • N-Nitrosodimethylamine
   4. Perchloric acid heated or concentration > 72%
   5. Piranha Solution
   6. Pyrophorics
   7. Acute Toxins
   8. Nanomaterials