🔍 Key Concepts

• Inspection vs. recharging requirements for portable fire extinguishers • How using a dry chemical extinguisher affects its pressure and contents • Recognizing that some actions are required only after discharge

💭 Think About

• Think about what happens inside a dry chemical extinguisher when it is discharged, even for a very short burst. • Ask yourself: is the need to recharge based on time intervals, temperature, or actual use? • Consider whether an extinguisher that has been partially discharged can still be relied on in an emergency without servicing.

✅ Before You Answer

• Verify which option is tied to actual use of the extinguisher, not just the passage of time. • Check whether temperature alone is a standard trigger for recharging or just for storage/handling precautions. • Confirm that periodic checks (inspection/maintenance) are different from the requirement to recharge after discharge.