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Workplace Hazardous Materials Information Symbols
WHMIS was invented in the late 1980’s to prevent
workplace injuries and accidents.
There are some basic rules that need to be followed
when working in the lab. You should always be paying
attention to your surroundings, but before you get
started you must
Clean spills from the outside IN. Apply paper towels over the spill then wipe from
outside towards in.
Always clean glassware before you use it to be sure
that residues are cleaned away. Add at least some water
first, before adding any liquid or solid solutes.
No eating or drinking in the lab. This means no gum,
and DO NOT try to test thing during the lab!
Do not taste, touch, or smell any chemicals unless
directed to do so by your teacher. When smelling
chemicals or gases, use the waft method. (Slowly waft the smell towards your nose not
sniff directly)
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When heating a substance in a test tube, be careful not to point the mouth of the test
tube at another person or yourself.
Material Safety Data Sheets (MSDS) is a list of properties within a chemicals and
substances.
WHMIS QUIZ
1. You should wear __________footwear in the lab?
2. It is always necessary to a)Tie up hair. b)Remove jewellery c) Both d)None
3. When heating a test tube always point the mouth of the tube _________ _____the
person
4. What does WHMIS stand for? Workplace ………….
5. What do these two symbols stand for
6. MSDS stands for:
True or False:
7. The workplace during a lab should be clutter free
8. Cleaning products at home should be kept in easy accessible spaces.
9. The flame (fire symbol) is class D (Materials causing other toxic affects)
10. Wear open toed shoes to wash off chemicals if split.