1. www.jst.umn.edu Unattended Operations Safe Overnight Procedure

2. www.jst.umn.edu Risks If proper controls in place, overnight reactions no more hazardous than during the day However, risk higher when no one around to address malfunction or prevent system alteration 2

3. www.jst.umn.edu Recommendation Hang laminated form on hood sash, near instruments – Include date, experiment duration, temp/process, hazards, contact info – Anna Sitek from DEHS working to provide template. Likely similar to: 3

4. www.jst.umn.edu Recommendation Hang laminated form on hood sash, near instruments – Include date, experiment duration, temp/process, hazards, contact info – Anna Sitek from DEHS working to provide template. Likely similar to: 4

5. www.jst.umn.edu Recommendation Hang laminated form on hood sash, near instruments – Include date, experiment duration, temp/process, hazards, contact info 5 STOP, Take 5 Pre-task Risk Assessment: 1.Stop and think through task 2.Identify hazards 3.Implement controls 4.Check that all risks addressed 5.Do task safely