Class D-3: Biohazardous infectious material
Class A: Compressed gas
Class E: Corrosive material
Class F: Dangerously reactive material
Class B: Flammable and combustible material
Class C: Oxidizing material
Class D-1: Poisonous and infectious material (immediate)
Class D-2: Poisonous and infectious material (other)
Workplace Hazardous Materials Information System (WHMIS) classification codes.