What type of hazards does the NFPA 704 system primarily address?

The NFPA 704 system primarily addresses physical and health hazards associated with materials, particularly chemicals. This system employs a color-coded label with a diamond shape, where specific colors represent different types of hazards. The blue section signifies health hazards, which pertain to potential health risks posed to individuals, while the red section indicates flammability hazards.

By using this system, emergency responders and others can quickly identify the nature and level of danger a material may pose in various situations, allowing for informed decision-making regarding safety protocols and responses. This dual focus on both physical hazards, like flammability, and health hazards, such as toxicity, makes it a comprehensive tool for evaluating the risks of materials in various environments.

The other choices, while related to specific types of hazards, do not fully encompass the scope of the NFPA 704 system. The system does not focus exclusively on chemical hazards, nor does it address biological or radiological hazards specifically, which are covered under different safety standards and protocols.