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How to Read a WHMIS Safety Data Sheet

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HOW TO READ A WHMIS SAFETY DATA SHEET WSPS.CA 22 305-BST-01-IMDO © 2024, Workplace Safety & Prevention Services (WSPS) 1 877 494 WSPS (9777) | 905 614 1400 | WSPS.CA 10.5 Incompatible Materials Acids Strong Bases Oxidizers (e.g. peroxides, perchlorates, nitrates, etc.) Acid chlorides Acid anhydrides Alkali metals Reducing agents. May react with rubbers, plastics and coatings Incompatible Materials refers to substances that must not be mixed or stored together with the hazardous product, as doing so may result in a hazardous reaction. These types of reactions may lead to explosions, fires, the release of toxic gases, or changes to the physical properties of the chemicals. 10.6 Hazardous Decomposition Products Carbon oxides Hydrogen gas Volatile organic compounds that may be toxic Hazardous Decomposition Products are chemicals that can be emitted when the hazardous product breaks down due to instability, combustion (burning), thermal decomposition (heating) and chemical reactions. In this example, the hazardous product may emit Carbon Oxides (e.g. Carbon Monoxide), Hydrogen gas and toxic volatile organic compounds. These biproducts must be controlled as they may result in suffocation, health effects, fires and explosions. SECTION 11: TOXICOLOGICAL INFORMATION This section provides technical information related to toxicology and health effects associated with the hazardous product or its ingredients. The information found in this section can be used to support information provided in section 2. In general, data may be provided that indicates the consequences of exposure. This will include signs, symptoms and effects that the exposure could produce. 11.1 Likely Routes of Exposure Inhalation Skin Contact Eye Contact This area will showcase the ways the hazardous product can enter a person's body. The controls present in section 8 should correspond with these routes of entry. In this example, exposure to the hazardous product can occur through inhalation (breathing), skin and eye contact.

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