W.H.M.I.S. Symbols:
The W.H.M.I.S. symbols tell you the kind of hazard in the container the W.H.M.I.S. symbol is on. You should
be able to recognize each of these symbols and know what they mean. For more information and an online
handbook, visit W.H.M.I.S. Online.
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CLASS A - COMPRESSED GASES |
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CLASS B - FLAMMABLE AND COMBUSTIBLE MATERIALS Division 1 - Flammable Gas Division 2 - Flammable Liquid Division 3 - Combustable Liquid Division 4 - Flammable Solid Division 5 - Flammable Aerosol Division 6 - Reative Flammable Material |
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CLASS C - OXIDIZING MATERIALS |
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CLASS D - POISONOUS AND INFECTIOUS MATERIALS Division 1 - Materials Causing Immediate and Serious Toxic Effects Subdivision A - Very Toxic Materials Subdivision B - Toxic Materials |
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Division 2 - Materials Causing Other Toxic Effects Subdivision A - Very Toxic Materials Subdivision B - Toxic Materials |
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Division 3 - Biohazardous Infectious Materials |
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CLASS E - CORROSIVE MATERIALS |
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CLASS F - DANGEROUSLY REACTIVE MATERIALS |
How to read M.S.D.S.:
Employers must keep Material Safety Data Sheets for any hazardous material used in the workplace and must
place them where workers like you can find and read them. A M.S.D.S. tells you about the hazards of a
material, how to use the material safely and what to do if there is an emergency.
When you read a M.S.D.S., look for answers to these questions:
When you read a M.S.D.S., look for answers to these questions:
- Is the material an unstable chemical? What conditions make it unstable?
- Is the chemical reactive with other chemicals? Which ones? What happens if they get mixed?
- What kind of injury or illness can the material cause?
Five Main Categories of Work Hazards:
- Burns/scalds
- Slips and falls
- Ladders
- Material handling equipment
- Elevated work platforms
- Machines and tools
- Electrical hazards
- Falling from heights
- Back injuries
- Repetitive strain injuries
- Ultraviolet radiation
- Heat stress
- Working alone
- Violence in the workplace
- Fire
Ten tips for working teens: