Laboratory Study Guide, Lab Safety

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Read:

See "Safety in the Science Laboratory"

Terms to Know in This Chapter:

lab coat

safety glasses

acid

base

corrosive [co ROSE ive]

caustic

solvent [SOL vent]

rubber stopper

smell

taste

natural fibers

bunsen burner [BUN sin]

reagent bottle [re AGE ent]

thermometer

dropper bottles

glassware

first aid kit

fire extinguisher

Class A

Class B

Class C

Class ABC

eye wash fountain

emergency shower

tetanus [TET a nus]

synthetic fibers

polyester fiber

nylon

rayon

MSDS (Material Safety Data Sheet)

What You Need to Know:

You should be able to:

1. state the basic safety procedures in the science lab,
2. locate the following and how to operate them:
   a. broken glassware container
   fire alarm
   fire exit(s)
   fire extingusiher(s)
   first aid kit
   emergency shower
   eye wash
   chemical disposal units
   MSDS (Material Safety Data Sheets),
3. explain when you should use safety glasses in the lab,
4. describe proper dress for the science lab,
5. state rules for hair, clothing, and contact lenses,
6. use a bunsen burner properly and how and when to turn it off,
7. describe proper technique of dealing with hot glasswear,
8. properly insert glassware into rubber stoppers and remove it,
9. state the policy on tasting and smelling materials in the lab and demonstrate proper smelling techniques,
10. tell what to do if you spill or break something in lab,
11. describe the proper technique for disposing of wastes in lab,
12. dispense reagents from reagent containers, dropper bottles, and other containers safely and without contamination, and,
13. explain what is the last task before leaving the lab.

Exercises: Fill in the Blank.

1. The last thing you should do before leaving lab is to .
2. Why should you not wear contact lenses in lab?
3. What type of clothing should you wear in lab?
4. What type of footwear must you wear in lab?
5. What materials is it OK to taste in lab?
6. Where should broken glassware be disposed?
7. Where should you put excess reagents?
8. Always pour into (water, acid)
9. How long should you remain under the emergency shower if you spill acid on your clothing? How long should you keep your eyes under the eye wash foundtain? .
10. How often should you have a tetanus shot or booster?
11. Describe the proper technique for smelling a substance in lab.
12. What are you allowed to eat or drink in lab?

Exercises: Multiple Choice. Select the Best Answer.

1. Always:
   

   (1) pour water into acid.
   

   (2) flush your eyes for 10 minutes in the eye wash fountain.
   

   (3) wash your hands upon entering lab.
   

   (4) leave thermometers in the stoppers.
   

   (5) decant liquids from solids before disposing.

2. 
   Which is a proper fiber to wear as lab clothing?

   (1) polyester
   

   (2) rayon
   

   (3) nylon
   

   (4) polyester, cotton blends
   

   (5)none of the above
   

3. 
   What type of extinguisher should you use on an electrical fire?
   

   (1) Class A
   

   (2) Class B
   

   (3) Class C
   

   (4) Class ABC
   

   (5) Both 3 and 4 are correct

4. 
   Which of the following is a correct statement?
   

   (1) Broken glassware goes in the garbage can.
   

   (2) Acids are said to be corrosive.
   

   (3) Your role, in case of fire, is to use the fire extinguisher.
   

   (4) Always pour water into acid.
   

   (5)None of the above are correct.

5. 
   What is the last thing to do before leaving lab?
   

   (1) Return your microscope to its proper place.
   

   (2) Clean your table and push your chair up under the table.
   

   (3) Wash your hands thoroughly with soap and water.
   

   (4) Say goodbye to the instructor.
   

   (5) Put your contacts back in.