WHMIS and Safety Worksheet Answer Key - 1. What does WHMIS stand for? Workplace Hazardous Materials Information System 2. What is the purpose of WHMIS? It is an information system in the form of special labels, symbols, and Material Safety Data Sheets (MSDS) for potentially dangerous chemicals used on the job 3. What information would you find on a WHMIS label? Name of the chemical, the WHMIS hazard symbols, risks and precautions, first aid instructions, supplier's name and address, a reference to the matching MSDS 4. Do all products and chemicals have WHMIS labels? Explain. No, some products, like pesticides and many household products, are covered by other legislation, and will have other label (e.g. international hazards symbols) 5. Identify the following symbols, write down at least one hazard this symbol represents and give one example of a material or chemical that may have this symbol. T R A B C D E F G H Identify Symbol A Compressed Gas One Hazard could explode if heated B Flammable & combustible materials could cause a fire C Oxidizing materials D Poisonous & infectious material - Division 1 E Poisonous & infectious material - Division 2 F Poisonous & infectious material Division 3 G Corrosive material H Dangerously reactive material could cause flammable material to burn could cause immediate, serious/fatal toxic effects cause toxic effects Example helium, hydrogen gasoline, ether chlorine, bleach, peroxide potassium cyanide, carbon monoxide cancer, sterility, benzene asbestos biohazardous infectious material transmission of a disease hepatitis B, AIDS, fungi, viruses serious chemical burns, lung damage from inhaling fumes sulfuric acid, chlorine gas could have a dangerous reaction with water calcium carbide WHMIS - Answer Key

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