1. Chemistry Houston County High School
Lab Safety
Chemistry
Houston County High School

2. General Rules Ask Before Doing Be supervised at all times
Notify teacher of injury, spill, or equipment damage
No admittance in the stockroom
NO HORSEPLAY!

3. Always read
the instructions
first!

4. STUDENT RESPONSIBILITIES

5. Know the location of all lab safety equipment

6. Fire Exit Not another convenient door If the fire is in the lab area
If the fire is blocking the exit to the hall

7. Fire Extinguisher Location Type A, B, C When do you use one?
Operation steps
Pull the pin
Aim at base of fire
Squeeze trigger

8. Fire Blanket Location Materials used in blanket Burning lab partner
Burning counter

9. Fume Hood Location When to use
Door down and fan running when chemicals are present

10. First Aid Kit
Location
Contents
Band-aids

11. Chemical Spill Bucket
Location
Contents
When to use
NOT A TRASH CAN!

12. WEAR ALL LAB SAFETY GEAR

13. Safety Goggles Location
All labs involving heat, chemicals, glass, and dissection
How to wear them
Contact lenses / glasses

14. Rubber Aprons
Location
When to wear them

15. Appropriate lab dress
Shoes
Pants
Old clothing
Lab aprons

16. Chemical Corrosive Contact
For eyes
For skin
For clothing
Procedure of using shower

17. General Stuff
ALWAYS wash your hands with soap and water when we are done with lab—NOT HAND SANITIZER
Keep your hands away from your face
You are responsible for washing your glassware, counter and other equipment
Never eat, drink, or chew gum in the lab area
Do not put paper, solids, or other trash in the sink

18. Working with Glassware
Check for chips and cracks
Clean and air dry
Do not handle broken glass
Handle glass tubing (including thermometers) with care
Put glassware on table before pouring
Do not carry reagent bottles to workstation
Do not place hot glass on the counter

19. Heating in Lab Handle equipment with special tongs
Crucible
Beaker
Test tube
Keep hot pad out and available for the entire lab
Nothing goes on the hot plate or in the flame except what is directed in lab

20. Burner Safety Extinguish flames before disassembling burner
Do not leave flame unattended
Do not reach over burner or heated materials
Keep all combustibles away from the flames

21. Other Heating instructions
Heat only in Pyrex or Kimax Glass
Allow materials to cool before handling
Do not put hot materials on the counter
Do not cool glass with water
Point test tubes away from people when heating

22. Working with chemicals
Chemical no no’s
Na, Ca, Hg, Mg
Never mix chemicals unless directed
Never taste chemicals
Waft aromas
Never add water to acid
Flush chemical spills with water unless otherwise directed

23. Review What type of goggles should contact lens wearers use?
When are goggles necessary for lab?
If glass breaks in lab, what is the first thing you do?

24. Reagent Bottles Take what you need
Do not return excess to stock bottle

25. Hazard Symbols
Common hazard symbols

26. Other Hazard Symbols