The WHMIS system aims to identify and classify hazardous materials found in workplaces through standardized labels, symbols and material safety data sheets. It covers six main classes of hazardous goods: compressed gases, flammable and combustible materials, oxidizing substances, toxic and infectious materials, corrosive products and reactive chemicals. The system is designed to prevent worker injuries by providing clear warnings about product dangers and safety precautions.
2. Pur pose of WHMIS
System of symbols, labels, and
materials safety data sheets
(MSDS)
Identify all hazardous products
(in the workplace)
Prevent worker injuries
9. Biological Hazar dous
Materials
Infectious materials (bacteria,
virus, biological waste)
Hazard: disease
Examples: E-coli, fungi,
hepatitis B, various viruses
10. Cor r osive Material
Causes burns to skin, eyes,
lungs, clothes, and metals
Hazard: chemical burns
Examples: bleach, sulfuric acid,
chlorine gas
11. Reactive Materials
Can react (burn, explode) vigorously
(if shaken or mixed with other
chemicals/water)
Hazard: sudden & quick reaction
(fire, explosion)
Examples: Nitroglycerine, Aluminum
chloride, Calcium carbide