During a Halon 1301 discharge test, weighing of containers for the agent is required at which times?

During a Halon 1301 discharge test, weighing of containers for the agent is required at which times?

• A. Only before discharge
• B. Only after discharge
• C. Both before and after discharge
• D. Not weighed

Answer: (C)

Understanding mass balance is key here. Weighing the container before discharge establishes how much Halon 1301 is actually in the cylinder to start with. Weighing it again after discharge shows how much agent was released into the test enclosure and helps detect any remaining agent in the system or leaks during the test. Doing both times provides a complete check: initial mass minus final mass equals discharged amount, and any discrepancy can indicate leaks or incomplete discharge. Weighing only once wouldn’t confirm how much was discharged, and weighing none wouldn’t verify the test results.

Understanding mass balance is key here. Weighing the container before discharge establishes how much Halon 1301 is actually in the cylinder to start with. Weighing it again after discharge shows how much agent was released into the test enclosure and helps detect any remaining agent in the system or leaks during the test. Doing both times provides a complete check: initial mass minus final mass equals discharged amount, and any discrepancy can indicate leaks or incomplete discharge. Weighing only once wouldn’t confirm how much was discharged, and weighing none wouldn’t verify the test results.