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Understanding WHMIS in Canadian Workplaces

Learn about Workplace Hazardous Materials Information System (WHMIS) in Canada, including responsibilities of suppliers, employers, and workers. Explore hazard classifications, storage practices, and safety precautions to keep yourself safe.

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Understanding WHMIS in Canadian Workplaces

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  1. WHMIS

  2. WHMIS WWORKPLACE HHAZARDOUS MMATERIALS IINFORMATION SSYSTEM

  3. Purpose of WHMIS • Provides Information on Hazardous Materials used in the Workplace • Identify Workplace Hazards • Consistency in all Canadian Workplaces

  4. Responsibilities Under WHMIS • Duties of the Supplier • Classify Product • Apply Supplier Label • Provide Material Safety Data Sheet

  5. Responsibilities Under WHMIS • Duties of the Employer • Conduct Workplace Inventory • Ensure Proper Labeling is Used • Label Piping Systems/Vessels/Reactors • Maintain and Make Available MSDS’s • Train Workers

  6. Responsibilities Under WHMIS • Duties of a Worker • Participate in Training • Apply Knowledge and Training • KEEP YOURSELF SAFE!!

  7. “Right to Know” • Worker’s have Access to Information through their Employer • Public has Access to Information through Local Medical Officer of Health

  8. WHMIS Hazard Classifications

  9. Compressed Gas • Any Hazardous Material that is contained under pressure including compressed gas, dissolved gas, or liquefied gas

  10. Compressed Gas Cylinders • store and transport with safety cap, because… • comply with storage restrictions, because… • DO NOT store fuel gas with oxygen, because… • secure in an upright position, because… • use in a well ventilated area, because… • use the proper type of regulator and know its history, because…

  11. Flammable and Combustible Material • Flammable Gases • Flammable and Combustible Liquids • Flammable Solids • Flammable Aerosols • Reactive Flammable Material

  12. Flammable Materials • Store liquids in Flammable Storage Cabinet • Explosion-proof fixtures required • Pour larger quantities in fume hood • NEVER store with oxidizers • Keep away from heat, ignition sources, and direct sunlight • Use static lines when transferring

  13. Oxidizing Material • Any Hazardous Material which causes or contributes to the combustion of another material by giving oxygen or some other oxidizing substance, whether or not it is combustible. • Eg. Pool & spa test strips, ozone, bleach…

  14. Oxidizers • Easily oxidize metal powders, organic materials • Segregate from other materials, such as organic solvents • PPE and/or Explosion barriers may be required

  15. Poisonous & Infectious Materials (Class 1) • Material causing immediate and serious toxic effects • Materials which are potentially fatal or may cause permanent damage if inhaled, swallowed, or absorbed through the skin, or may burn the skin or eyes upon contact

  16. Poisonous & Infectious Materials (Class 2) – Toxic Materials • Material causing other chronic or long term effects • Material which may cause death or permanent damage as a result of repeated exposure over an extended period of time; may be an irritant to the skin, eyes, or respiratory system; may cause cancer, birth defects, or sterility.

  17. Poisonous & Infectious Materials (Class 3)- Biohazards • Materials which may cause disease in humans and animals, such as viruses, bacteria, and fungi; may also include cultures and diagnostic specimens such as blood, urine, and body tissue.

  18. Corrosive Material • Material which may corrode aluminum and steel or human flesh • Can be liquid or gases

  19. Dangerously Reactive Material • Materials which become self-reactive under conditions of shock, or increased temperature or pressure • Materials which react vigorously with water to produce a very toxic gas

  20. General Dry Chemicals Relatively innocuous or unreactive No special storage requirements

  21. Chemical Compatibility • Never store incompatible materials together • Vapours will react • Use a Chemical Compatibility Chart

  22. Quiz time!

  23. WHMIS “Name that Symbol” Poisonous & Infectious Material(Class I) Biohazard

  24. WHMIS “Name that Symbol” Flammable Corrosive

  25. WHMIS “Name that Symbol” Dangerously Reactive Toxic

  26. WHMIS “Name that Symbol” Oxidizers Compressed Gas

  27. WHMIS Labels

  28. Supplier Label • Product Identifier • Hazard Symbols • Border • Risk Phrases and Precautions • First Aid, Supplier Information • Precautions • Safe Handling Precautions • Reference to MSDS

  29. Workplace Label • Product Identifier • Safe Handling Precautions • Reference to MSDS

  30. Typical Workplace Labels

  31. Hazardous Ingredients Preparation Information Fire & Explosion Hazard Toxicological Properties First Aid Measures Product Information Physical Data Reactivity Data Preventative Measures MSDS Contents

  32. Product Information • Product Identifier • Manufacturer’s/Supplier’s Name and Address • Emergency Telephone Number • Product Use

  33. Odour Threshold Vapour Pressure Coefficient of Water/Oil Distribution Boiling Point (oC) and Freezing Point (oC) Evaporation Rate (Butyl Acetate=1) Physical State Odour & Appearance Specific Gravity (Water=1) Vapour Density (Air=1) pH Percent Volatile (by volume) Physical Data

  34. Fire & Explosion Hazard • Conditions of Flammability • Means of Extinction • Sensitivity to Mechanical Impact • Sensitivity to Static Discharge • Flashpoint (oC) and Method • Upper and Lower Flammable Limits (%) • Autoignition Temperature (oC) • Hazardous Combustion Products

  35. It’s all about a safe workplace!

  36. Spot the Hazards

  37. Spot the Hazards

  38. Work time! • Fill in the blanks using the MSDS sheet that you have been given

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