Final answer:
The class and division of a substance as a fire hazard and either a minor blast hazard or a minor projection hazard, or both, can be determined using the NFPA 704 Hazard Identification System.
Step-by-step explanation:
The class and division of a substance as a fire hazard, as well as a minor blast hazard or a minor projection hazard, can be determined using the National Fire Protection Agency (NFPA) 704 Hazard Identification System. This system provides safety information about substances and uses a diamond symbol to identify hazards. The top (red) diamond indicates the level of fire hazard, while the white (bottom) diamond specifies special hazards.
If a substance has a high rating in the fire hazard category (one of the top three levels, such as 3 or 4), and also has a rating in the minor blast hazard or minor projection hazard category (any rating above 0), it would be classified as a fire hazard and either a minor blast hazard or a minor projection hazard, or both.