What is the first step in the process used to recharge a fire extinguisher?

The first step in the process of recharging a fire extinguisher involves discharging any remaining powder or contents. This step is essential because it allows for a complete and thorough examination of the extinguisher's internal components and ensures that no residue from previous use will contaminate the new charge. Discharging the extinguisher also removes any pressure that might still be present, making it safe to handle during the recharging process.

Following the discharge, the extinguisher can be inspected for damage, checked for the expiration date, and subsequently refilled with the appropriate extinguishing agent. Each of these subsequent steps is important for ensuring the extinguisher is operational and up to current safety standards. However, only by discharging the extinguisher first can the recharging process proceed effectively, confirming that the extinguisher remains in a safe and serviceable condition.