Workplace Hazardous Materials Information System (WHMIS)
WHMIS (Workplace Hazardous Materials Information System) is Canada's national hazard communication standard. The key elements of WHMIS are:
- cautionary labelling of containers of WHMIS "controlled products"
- provision of material safety data sheets (MSDSs)
- worker education and training programs .
WHMIS provides information on the safe use, storage, handling and disposal of hazardous materials at Canadian workplaces.
WHMIS Hazard SymbolsThere are 8 WHMIS hazard materials symbols representing the 8 classes of hazardous materials. The 8 classes are:
CLASS A Compressed Gas
CLASS B Flammable and Combustible Material
CLASS C Oxidizing Materials
CLASS D-1 Poisonous and Infectious Material (material causing immediate and serious effects)
CLASS D-2 Poisonous and Infectious Material (material causing other toxic effects)
CLASS D-3 Poisonous and Infectious Material (Biohazardous Infectious Material)
CLASS E Corrosive Material
CLASS F Dangerously Reactive Material
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