Final answer:
The hazard class division refers to the NFPA 704 labeling system, which uses a color-coded diamond to indicate various hazards of substances, with each color representing a different type of hazard.
Step-by-step explanation:
The type of hazard class division that is identified on the label is detailed by the National Fire Protection Agency (NFPA) 704 Hazard Identification System. This labeling system, sometimes referred to as a 'fire diamond' or 'hazard diamond', is used for providing safety information about the hazards of substances. The symbol includes four colored diamonds, with each colored diamond representing different types of hazards:
- The red diamond (top) specifies the level of fire hazard.
- The blue diamond (left) indicates the level of health hazard.
- The yellow diamond (right) outlines the reactivity hazards.
- The white diamond (bottom) points out special hazards such as being an oxidizer, corrosive, or other specific risks.
Each hazard is rated on a scale from 0 (no hazard) to 4 (extremely hazardous).