Workplace Hazardous Materials Information System

Topics: Material safety data sheet, Chlorine, Sodium chloride Pages: 2 (370 words) Published: June 17, 2011
Workplace Hazardous Materials Information System 
WHMIS logo
The Workplace Hazardous Materials Information System (WHMIS, known as SIMDUT, Système d'information sur les matières dangereuses utilisées au travail in French, Canada's other national language) is Canada's national workplace hazard communication standard. The key elements of the system, which came into effect on October 31, 1988, are cautionary labelling of containers of WHMIS controlled products, the provision of material safety data sheets (MSDSs) and worker education and site-specific training programs. WHMIS is an example of synchronization and cooperation amongst Canada's federal, provincial and territorial governments. The coordinated approach avoided duplication, inefficiency through loss of scale and the interprovincial trade barriers that would have been created had each province and territory established its own hazard communication system.

| CLASS A: COMPRESSED GASThis class includes compressed gases, dissolved gases, and gases liquefied by compression or refrigeration.| | CLASS B: FLAMMABLE AND COMBUSTIBLE MATERIALThis class includes solids, liquids, and gases capable of catching fire in the presence of a spark or open flame under normal working conditions.| | CLASS C: OXIDIZING MATERIALThese materials increase the risk of fire if they come in contact with flammable or combustible materials.| | CLASS D: POISONOUS AND INFECTIOUS MATERIAL

Division 1: Materials Causing Immediate and Serious Toxic EffectsThese materials can cause death or immediate injury when a person is exposed to small amounts. Examples: sodium cyanide, hydrogen sulphide| | CLASS D: POISONOUS AND INFECTIOUS MATERIAL

Division 2: Materials Causing Other Toxic EFFECTSThese materials can cause life-threatening and serious long-term health problems as well as less severe but immediate reactions in a person who is repeatedly exposed to small amounts.| | CLASS D: POISONOUS AND INFECTIOUS MATERIAL

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