General Rules
What should you do if you do not understand a direction?
Ask the instructor before proceeding.
What should you do if you have an accident?
Report it to the instructor immediately.
What must you do before removing any chemical from its container?
Check the label on chemical bottles twice.
What is the safe way to carry glass tubing?
In a vertical position to minimize breakage.
How should you light a gas burner?
As instructed by the teacher.
What should you wear when using chemicals?
Laboratory goggles at all times.
How do you respond to a chemical splash in your eye?
Flush with running water for at least 20 minutes and notify the instructor.
Why should you never return unused chemicals?
It can contaminate the original container.
How should you clean up broken glass?
Use a brush and dustpan, never your bare hands.
What should you never do when using a gas burner?
Never leave it unattended.
What is prohibited in the lab?
Eating, drinking, or chewing gum.
What should you yell if you or your partner is hurt?
"Code one, Code one!"
How should you handle acids?
Always add acid to water and handle with care.
What should you do if glassware is chipped?
Do not use it and report it immediately.
What should you do with heated metals and glass?
Allow them to cool before handling; use tongs if necessary.
Why should you not work alone in the lab?
An instructor must always be present for safety.
When should you report an injury?
Immediately, no matter how trivial it may appear.
What should you do with flammable liquids?
Handle over a pan and keep away from open flames.
Why should you lubricate glassware before inserting it in a stopper?
To prevent breakage and make insertion easier.
Why is it important to not look into a heated container?
It can cause burns or injury from splashes.
What should you do if there is a fire drill?
Close containers, turn off gas valves, fume hoods, and electrical equipment.
What is the first step if a chemical spills?
Notify the instructor and follow proper cleanup procedures.
Describe the proper technique for wafting chemical vapors.
Use your hand to gently wave the vapors toward your nose without directly inhaling.
What should you do if glassware becomes “frozen” in a stopper?
Take it to your instructor for removal.
What should you use to cool hot apparatus?
An insulating pad and allow time for cooling.