What are the primary considerations for using a fire extinguisher on a hazmat fire?

Choosing to use a fire extinguisher on a hazmat fire necessitates a strong understanding of the type of material involved and its reactivity. Different hazardous materials react in unique ways when exposed to fire, which can significantly impact the effectiveness of various extinguishing agents. For example, certain substances may be flammable or can produce toxic fumes or explosive reactions when they come in contact with water or other extinguishing agents. Therefore, knowing the properties of the hazardous material not only informs the choice of extinguisher but also helps in assessing the potential risks involved in attempting to extinguish the fire.

Understanding the specific characteristics of the material—whether it is flammable, combustible, corrosive, or reactive with water—enables the responder to make informed decisions that prioritize safety and effectiveness in mitigating the fire. This knowledge can help to avoid exacerbating the situation or causing additional hazards during the response.