A 14'' x 10'' 4 mil Pressure-Sensitive Vinyl "DANGER" sign warning of confined space; Entry by permit only. Entry by trained personnel only. Entering this confined space is NOT a routine operation.
DO IT SAFELY!

1. Permission
   • Get a written permit from your certified supervisor
2. Preparation
   • Lock out power feeds
   • Shut off heating system if needed
   • Drain if needed
   • Vent vapors if needed
   • Post ''WORKER IN CONFINED SPACE'' signs
3. Isolation
   • Disconnect fill and drain lines if needed
4. Ventilation
   • Force air to bottom of Confined Space and vent to outside
5. Check air inside Confined Space
   • At least 19.5% Oxygen
   • No more than 23.5% Oxygen
   • Check for explosive limit 0% LEL
   • Check toxic vapors if needed
6. Protect yourself
   • Wear gloves and other safety clothing
   • Put on harness and lifeline
   • Continuously monitor the air
7. Rescue backup
   • Observer with auxiliary air supply standing by before you enter and until you exit, SAFELY
8. In case of emergency call________
   
   Plant Protection