What does the acronym PASS stand for in the context of safety procedures?

In the context of safety procedures, particularly regarding fire extinguishers, the acronym PASS stands for "Pull, Aim, Squeeze, Sweep." This method outlines the steps to effectively operate a fire extinguisher.

The first step, "Pull," refers to removing the safety pin or locking mechanism that keeps the extinguisher from accidentally discharging. This is essential, as it arms the extinguisher for use.

Next, "Aim" involves directing the nozzle or hose towards the base of the fire, as this is where the fuel source is located, and addressing the base of the flames is vital for extinguishing the fire effectively.

The third step, "Squeeze," means applying pressure on the lever or handle to release the extinguishing agent. This action generates the necessary force to discharge the material inside the extinguisher effectively.

Lastly, "Sweep" involves moving the nozzle from side to side at the base of the fire, ensuring that the extinguishing agent covers the flames thoroughly and is effective in putting out the fire.

This systematic approach is critical during emergencies for maximizing safety and effectiveness when dealing with fires, making it a foundational element in fire safety training.