What is the primary consideration when selecting a dry chemical agent for a specific hazard?

The primary consideration when selecting a dry chemical agent for a specific hazard is its effectiveness for suppressing the specific class of fire. Different classes of fires (such as Class A, B, C, D, or K) require different types of extinguishing agents because each type of agent targets particular types of combustibles. For example, some dry chemical agents are effective on flammable liquids, while others might be designed for electrical fires or ordinary combustibles.

Selecting an agent based on its effectiveness ensures that it will properly extinguish the fire, minimize damage, and protect life and property. Although factors like cost, color, and the size of the storage container may play a role in the overall decision-making process, they do not outweigh the crucial need for the agent to be appropriate and effective for the specific fire hazard being addressed.