What signal words and hazard statements are used? Back to top following skin contact or ingestion of a single dose of a substance, or multiple doses given within 24 hours, orĪcute toxicity can result from exposure to the product itself, or to a product that, upon contact with water, releases a gaseous substance that is able to cause acute toxicity.What are the hazards of products that have the skull and crossbones pictogram? Back to topĪcute toxicity refers to effects occurring: The exclamation mark pictogram is assigned to Category 4 for each route of exposure. Acute toxicity (Inhalation) – Category 1, Category 2, and Category 3.Acute toxicity (Dermal) – Category 1, Category 2, and Category 3.Acute toxicity (Oral) – Category 1, Category 2, and Category 3.There are 4 categories in the Acute toxicity hazard class, but the skull and crossbones pictogram is only assigned to 3 categories for each route of exposure: This hazard class is different than other hazard classes because it individually considers each applicable route of exposure - oral (swallowed or ingested), dermal (skin contact) and inhalation (breathing).

Only one WHMIS 2015 hazard class uses the skull and crossbones pictogram – Acute toxicity. Which hazard classes use the skull and crossbones pictogram? Back to top Hazardous products with this pictogram can be safely worked with if proper storage and handling practices are followed. The symbol indicates that hazardous products with this pictogram can cause death or poisoning. The symbol within the pictogram is a human skull with two crossed bones behind it. You are here: How to Work Safely with - Hazardous Products using the 'Skull and Crossbones' Pictogram

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