1. Lab safety procedures

2. The what-not-to-do lab
Describe the mistake identified by each circled number on the handout

4. What to do
What is wrong with each numbered spot in the WHAT-NOT-TO-DO Lab? For each item in the picture given a number, list in the square provided, the action or lack of action that increases the chance of an accident or creates a more dangerous situation in the Lab If you can not identify items ask the teacher or your partners

5. Discussion of what not to do lab
What are the main categories to the lab mistakes fall into?

6. Themes in the what not to do answers
Contamination
Handling chemical substances incorrectly, even dangerously
Using safety features incorrectly
Inattentiveness
Sloppiness in lab procedures
Inadequate upkeep of safety features
Improper and inadequate storage

7. Safety lab
Go over rules, regulations and procedures that govern how to work safely and effectively in a laboratory setting.

8. The Safety Contract @ Cab
Must be signed and in my possession before you will be allowed to participate in any lab

9. What do these symbols represent?
List the main warning for each sign to the right.
Identify each sign by its location, for example top row right…

11. Rules and Consequences Concerning Personal Behavior
Hair, Clothing Concerns
a. Shoes that do not show the toes (no sandals, flip-flops)
b. Rolled up long sleeves, or short sleeves
c. Tie back loose hair
Horseplay, Maturity
Quiet conversation
Improper use of equipment
Consequences for failing to follow the rules…

12. Lab Safety equipment Safety Shower Eye wash First Aid kit *
Fire extinguisher
Fire blanket
Fume Hood
MSDS Sheets

13. MSDS Sheets

14. Fume Hood Creates a negative air flow
No fumes can leak out into the classroom

15. Personal safety equipment
Goggles
Face Shields (not in this lab)
Lab Coats (not these either)
Gloves (latex vs nitrile)

16. What should you do if chemicals are spilled on your skin, clothes, or in your eyes ??

17. IF chemicals are… On skin or clothing: In eyes: For minor burns:
Rinse with plenty of water
Remove the affected piece of clothing
In eyes:
Begin washing immediately
Continue for 1-15 minutes
Until you can be seen by a nurse
For minor burns:
Should be placed under cold running water

18. What is the solution to most chemical spills?

19. The solution is dilution

20. Important procedures/actions to be followed in the lab
For safety and efficiency
Important procedures/actions to be followed in the lab

21. Right way to observe contents of a flask, beaker or tube
NEVER point the mouth of a test tube or Erlenmeyer flask at yourself or another person! ALWAYS direct the mouth away from people!
Right way to observe contents of a flask, beaker or tube
Wrong way to observe contents of a flask, beaker or tube

22. Working with acids
If the two liquids are water and an acid, always add the acid to the water slowly. Never add the water to the acid.
Reasons:
Solvent and Solute
Concentration

23. Unused material and original containers
To prevent contamination of the chemicals, never return unused material to the reagent bottle.

24. Use of a fire extinguisher
Pull the pin
Squeeze the handle
Spray at the base of fire

25. Is Drinking Distilled water dangerous?
Not really, but prolonged usage will leach vital minerals and vitamins from the body.

26. Safety Assignment
In your composition Book, make a sketch of the room, showing exits, counters, sinks and tables.
Indicate on your sketch, the location of the following items:
Safety Shower H. MSDS for chemicals
Eye wash
First Aid kit (draw arrow out of door towards nurse)
Fire extinguisher
Fire blanket
Fume Hood
Goggle UV Lockers

27. In addition, each person
add the following your sketch
Location of at least 3 gas vents
Location of yellow, black chemical storage locker
MAKE A KEY FOR YOUR SKETCH

28. Check in Questions
List the safety equipment found in the lab and explain its primary use.
Why should there be 2 doors in a lab?
What does MSDS represent, and what is its use?
Why do you aim for base of the fire with the extinguisher spray?

29. Lab safety homework
Handout

30. What is due Wednesday Answers to what not to do lab
Drawing of room, with key
Answer to homework handout questions

31. Safety quiz