Changes

*never use a tool which you have not been trained to use, or which you do not feel comfortable using.

*never use a tool that is damaged. If you discover a tool that is damaged, report it to your TA immediately.

*never work in the lab when you feel tired or drowsy, or under the influence of medication.

*if the lab is unsupervised, only use tools that are you are allowed to use without supervision. If you want to use a tool that requires supervision, then contact your class TA.