WHMIS Class D includes which of the following?

WHMIS Class D focuses specifically on "Poisonous and infectious material." This classification is critical as it encompasses substances that can pose significant health risks to individuals who are exposed to them. Within Class D, materials are categorized further:

• Division 1 pertains to materials that are toxic and can cause immediate harmful effects or even death upon exposure.

• Division 2 deals with materials that may cause long-term health effects or can be infectious, including certain viruses and bacteria.

Understanding Class D's emphasis on the dangers posed by toxic and infectious materials is crucial for maintaining safety in environments where these substances may be present, ensuring that appropriate handling and emergency measures are implemented.

The other classifications mentioned in the choices are part of the WHMIS system but fall under different categories. For example, compressed gases are classified under Class A, while flammable and combustible liquids and oxidizing materials are classified under Classes B and C, respectively. This distinction is essential for accurately identifying and handling the risks associated with different types of hazardous materials.