What should you check periodically on a Type B extinguisher?

Regularly checking the weight and pressure gauge on a Type B extinguisher is crucial because it ensures that the extinguisher is adequately charged and ready for use. The pressure gauge provides an immediate visual indication of whether the extinguisher is in the operational range; if the needle is in the green zone, it indicates the extinguisher is pressurized correctly. This check is vital because a discharged or improperly pressurized extinguisher may not function effectively in the event of a fire, which poses a significant risk during emergencies.

While monitoring the label color, type of extinguishing agent, and the age of the extinguisher are important considerations, they do not provide the immediate operational status that the weight and pressure gauge do. Checking the gauge regularly helps ensure the fire extinguisher will perform as expected when needed most.