Within WHMIS 2015, there are two types of hazard groups; physical and health hazards. Additionally, these two hazard groups are further broken down into hazard classes and hazard categories.
Hazard Classes
Within each group, there are classes which are essentially groupings of like chemicals. There are 19 classes of chemicals within the physical hazards group and 12 classes of chemicals within the health hazard group. Review the Hazard Class provided by the Canadian Centre of Occupational Health and Safety.
Hazard Categories
Each hazard class contains a hazard category. A hazard category identifies the severity of hazard and tells us just how hazardous the product is. Although each hazard class contains a minimum of one hazard category, it is possible for a hazard class to contain numerous hazard categories.
Hazard Groups Drag-the-Words Activity
definition
identifies the severity of hazard and tells us just how hazardous the product is.
