1. Tour Lab Chemical Hygiene Plan (2004), pg. 11-12. S TANDARD O PERATING P ROCEDURES S EPTEMBER 6, 2011

2. All nitrogen bubblers have a flow rate of less than 1 bubble per second All hood sashes in the lab are completely closed All water lines are secured with copper wire L AB S IGN O UT P ROCEDURE If you are the last person to leave the lab at night, ensure the following tasks are completed and fill in the sign-out sheet on the door:

3. All faucets are turned off (except those used for reactions in progress) All variacs are on cork rings All stills are turned off and the THF is on low L AB S IGN O UT P ROCEDURE

4. All rotovap heaters and pumps are turned off All lights are turned off, including the lights in the hoods All the lab doors are locked with the deadbolt, including the doors to the instrument and computer rooms L AB S IGN O UT P ROCEDURE